LLM Releases · Weekly brief

Two Chinese Flash models were the only releases in the window, and the closed frontier moved through prices, not launches

Oct 17 to Oct 23, 2026: closed and open-weight models compared on size, context, price and benchmarks, with every figure shown with its basis and date.

Read first
  • Only releases dated Oct 17 to Oct 23 are window models; every other model here is context.
  • Vendor benchmark scores are claims, not rankings; independent results are labelled.
  • This is not investment or procurement advice.
2window model releases, Oct 17 and Oct 19 · both Chinese Flash models
57.6top AA Intelligence Index v4.3.2 score, Claude Opus 5.5 · independent · board of Oct 22 · context
$0.15 / $0.60MiniMax M3.1 Flash list price per 1M tokens, in / out · vendor list · Oct 19
Divrite Research · Status as of Oct 24, 2026
Hero visual: timeline of the Oct 17 to Oct 23, 2026 window with the two window releases and the dated context releases around it
The week's window and the dated releases around it (window models vs context)
Oct 17DeepSeek V4.1-Flash-1017 released with MIT weights; Search and Fetch APIs cost $0.75 per 1,000 callsWindow · shipping
Oct 19MiniMax M3.1 Flash live at $0.15 / $0.60; weights announced for Oct 23, unconfirmed; licence unpublishedWindow · announced
45 vs 43AA Intelligence Index, DeepSeek V4.1 Flash 1017 vs MiniMax M3.1 Flash, as of Oct 21Independent measurement
$270 → $540Gemini 4 Argon, assumed 60M-input, 15M-output month: now vs from Dec 1 (AionX)Illustrative · reported
92.8%of MiniMax M3.1 Flash's non-correct answers were confident errors (40.6% of all questions), as of Oct 21Independent measurement
Basis: every status is judged against Oct 24, 2026. Vendor figures are marked as claims, press and aggregator figures as reported, and models released before Oct 17 as context.
01Week in brief

The window produced two Chinese Flash models and no closed launch, so the week's story is price, access and trust

Between Oct 17 and Oct 23, 2026 the window produced two model releases, DeepSeek V4.1-Flash-1017 and MiniMax M3.1 Flash. The newest closed releases, Meta's Muse Wonder (Oct 12) and Gemini 4 Argon's general availability (Oct 13), are context. Every status is judged against Oct 24.

Five conclusions

No closed model launched; the closed news is Google's price schedule

The newest closed releases are Meta's Muse Wonder (Oct 12) and the general availability of Gemini 4 Argon through the paid API on Oct 13. Argon costs $2 / $10 per 1M tokens until Nov 30 and $4 / $20 from Dec 1, so an illustrative 60M-input, 15M-output month rises from $270 to $540. Until Nov 30 Argon is 50% of Opus 5.5's $4 / $20 list rate, and from Dec 1 the two are level.

Argon GA · Oct 13 · contextPrice page revised Oct 19 · reported$270 → $540 · illustrative
Evidence in module 02 and module 05 →

Only DeepSeek shipped usable open weights; MiniMax's are a promise

DeepSeek V4.1-Flash-1017 arrived on Oct 17 with MIT weights, and its Search and Fetch APIs cost $0.75 per 1,000 calls. MiniMax M3.1 Flash went live on Oct 19 at $0.15 / $0.60, but its weights, announced for Oct 23, are unconfirmed and the licence is unpublished. Open-weight no longer means permissive: Kimi K3 and Muse Spark Open carry $20M revenue triggers.

DeepSeek weights · MIT · Oct 17MiniMax weights · announced · Oct 23 unconfirmed$20M triggers · Kimi K3, Muse Spark Open
Evidence in module 03 →

Anthropic's September models still top the independent boards

On the Artificial Analysis (AA) Intelligence Index v4.3.2, Opus 5.5 scores 57.6, Sonnet 5.5 56.0 and Muse Wonder Full 55.8 (board of Oct 22, independent). Argon leads LMArena text by 1525.4 − 1507.1 = 18.3 Elo, which is within noise. Between the two window models, DeepSeek leads on AA, 45 against 43, but MiniMax costs less per task, $0.22 against $0.26.

AA Intelligence Index · independent · Oct 22LMArena text · human-vote Elo · Oct 22AA cost per task · as of Oct 21
Evidence in module 04 →

The rate card is a poor guide; cost per task and peak hours decide the bill

Kingy's check found no Western list-price change among 17 tracked models since Sept 20 (reported, Oct 19). DeepSeek charges $0.30 / $1.20 at peak and $0.15 / $0.60 off-peak. Gemini 3.8 Flash costs about $1.24 per index task, 5.6 times MiniMax's $0.22 for one point less.

Kingy check · reported · Oct 19DeepSeek peak split · since Aug 16AA cost per task · as of Oct 21
Evidence in module 05 →

Developer feedback is about trust

AA found MiniMax M3.1 Flash correct on 56.2% of questions, but 92.8% of its misses were confident errors, or 40.6% of all questions. AI/ML API's own tests passed 49 of 51 runs at 109 tokens/s, against MiniMax's "above 200" (vendor claim). Evidence on DeepSeek is a three-task test; all of this is anecdotal except the AA numbers.

AA-Omniscience · independent · as of Oct 21AI/ML API test · anecdotal · Oct 21DeepSeek three-task test · anecdotal
Evidence in module 06 →

Models at a glance

ModelVendorTypeRelease dateStatus (Oct 24)Source
MiniMax M3.1 Flash WindowMiniMaxOpen-weight (announced); licence unpublishedOct 19, 2026Shipping; weights promised Oct 23, unconfirmedMiniMax
DeepSeek V4.1-Flash-1017 WindowDeepSeekOpen-weight, MITOct 17, 2026Shipping; weights publicThe Decoder
Gemini 4 Argon ContextGoogleClosedAnnounced Sep 30; API Oct 13GA, paid tier only; price doubles Dec 1Towards Data Science; AionX
Meta Muse Wonder ContextMetaClosed, no public weightsOct 12, 2026Shipping; Wonder Full in Muse Code plans onlyDevX
Claude Opus 5.5 ContextAnthropicClosedSep 22, 2026GAAnthropic
GPT-6 Astra ContextOpenAIClosedSep 3, 2026GABenchLM
Meta Muse Spark Open ContextMetaOpen-weight, custom licenceOct 15, 2026ShippingCometAPI
Reflection Beam 1.0 ContextReflectionOpen-weight, Apache 2.0Weights Oct 16, 2026ShippingData Studios
Kimi K3 ContextMoonshotOpen-weight, custom licenceJul 16, 2026ShippingFello AI

How to read the labels

WindowContextWindow models were released Oct 17 to Oct 23, 2026; context models were released earlier.
Independent measurementA third-party evaluation such as Artificial Analysis; still a snapshot with its own settings.
Vendor claimReportedA vendor figure, or a press or aggregator figure we could not check at source.
AnnouncedIllustrativeAnnounced means promised but not confirmed; illustrative means our example with assumed usage.
02Closed models

No closed model launched in the window; Google's Argon price schedule is the closed-model news

All closed models below are context (released before Oct 17), judged against Oct 24, 2026. No vendor discloses a parameter count for any of them, so size is not disclosed. Price and context cells for Google, OpenAI, xAI and Meta come from aggregators and are labelled that way.

What the closed vendors did

Gemini 4 Argon ContextGA, paid tier only

Announced Sep 30, first only to vetted cyber defenders, and opened on Oct 13 through the paid Gemini API, AI Studio and Antigravity, plus the Gemini app for paid subscribers. One source still described it as gated in a page updated Oct 19; we follow the five pages that date general availability to Oct 13. There is no free tier, and core Workspace plans do not include it by default.

Unified window 1,048,576 tokens; default output 65,536, up to 1,048,576 with long decode; text, image, audio, video and PDF in, text out.

Meta Muse Wonder Context

Released Oct 12 with Wonder Full. Only Wonder is on the API at $4 / $20 per 1M tokens (cached $0.20), the same as Opus 5.5; about 1M context. Wonder Full sits behind the $50 and $200 Muse Code plans with no per-token price.

Argon price schedule · reported (AionX, page revised Oct 19)
$2 / $10standard per 1M tokens until Nov 30
$4 / $20standard from Dec 1
$1 / $5 → $2 / $10batch, Dec 1
$3.60 / $18 → $7.20 / $36priority, Dec 1 · secondary listing

The schedule was already public on Oct 13, so the Oct 19 revision is not a new change. Cache $0.10 becomes $0.20.

Anthropic Claude 5.5 family Context

Opus 5.5 (Sep 22), Sonnet 5.5 (Sep 28) and Haiku 5.5 (Oct 7), all with a 1M-token window. Opus 5.5 at $4 / $20 is (5 − 4) ÷ 5 = 20% below Opus 5 at $5 / $25, and Haiku 5.5's $0.10 input is 90% below Haiku 4.5 (our arithmetic). Anthropic states different figures, "40% less to run" for Opus 5.5 and about 75% cheaper for Haiku 5.5 Vendor claim; we cannot reproduce either.

OpenAI GPT-6 ladder Context

Luna $0.10 / $0.50, Sol $2 / $10, Astra $10 / $50 per 1M tokens; Astra is 100× Luna on both rates. Sol and Luna reached the API on Sep 22; the ChatGPT-wide rollout was dated Oct 7. Context shows as 1.05M in two sources and 922K in one, probably the input ceiling (our inference).

xAI Grok 4.7 Context

Reached the API on Sep 21 at an unchanged $2 / $6; in the Grok app's Expert mode since Oct 3. Context is not stated in the material.

Source conflict · Claude Fable 5.1

Anthropic's release notes say Sep 1 and its news listing says Sep 15. We follow Sep 1, the dated changelog entry.

Takeaway

For buyers the closed tier is stable. The decision this week is Argon's Dec 1 doubling, not a new model.

Argon price page revised ReportedOct 19

Covered in the Google and Meta tab: every Argon rate doubles on Dec 1, and the schedule was already public on Oct 13.

Retirements dated inside the window Scheduled, not confirmed

QCode's calendar, last checked Oct 10, lists GitHub Copilot dropping six models on Oct 19, Google's earliest shutdown date of Oct 22 for several Veo 3.1 previews and gemini-omni-flash-preview, and OpenAI shutting down 17 older entries on Oct 23, none of them a GPT-6 model.

Reading the window

No closed model in the material was first released between Oct 17 and Oct 23. The newest are Muse Wonder (Oct 12) and Gemini 4 Argon's general availability (Oct 13).

Anthropic's announcements listing runs to Oct 21 and shows no model after Haiku 5.5 on Oct 7. We found no newsroom page from OpenAI, Google, xAI or Meta in the material.

Closed models at a glance

ModelKey figures (USD per 1M tokens, in / out)DateStatus (Oct 24)Source
Google Gemini 4 ArgonUnified window 1,048,576 tokens; output 65,536 default; $2 / $10 until Nov 30, $4 / $20 from Dec 1Announced Sep 30; API Oct 13GA (Stable); paid tier onlyLLM Data Hub quoting Google; Towards Data Science
Meta Muse WonderAbout 1M context; API $4 / $20, cached $0.20; no public weightsOct 12Shipping on Meta Model API; Wonder Full only in Muse Code plans ($50, $200), no API priceDevX
Claude Haiku 5.51M context, 128K output; $0.10 / $0.50 (prompts up to 100K), $0.50 / $2.50 aboveOct 7GAAnthropic; BenchLM; Fello AI
Claude Sonnet 5.51M context; $2 / $10Sep 28GAAnthropic; BenchLM
Claude Opus 5.51M context, 128K output; $4 / $20; cache read $0.20Sep 22GAAnthropic; BenchLM; vakati-tech
Claude Fable 5.11M context; $10 / $50; Mythos 5.1 is the same model with fewer safeguards, vetted users onlySep 1 or Sep 15 (sources conflict)GA; Mythos limited accessAnthropic; BenchLM
OpenAI GPT-6.1 Sol1.05M context; $2 / $10; cached $0.10Sep 29GABenchLM; Puter
OpenAI GPT-6 Sol / Luna1.05M context; Sol $2 / $10; Luna $0.10 / $0.50 up to 272K, $0.20 / $0.75 aboveAPI Sep 22; ChatGPT rollout Oct 7GALLM Gateway; Puter; Shattered
OpenAI GPT-6 Astra1.05M context; $10 / $50; cached $1Sep 3GABenchLM; CloudZero
xAI Grok 4.7$2 / $6; context not stated in the materialSep 21GA on xAI APIFello AI; Activepieces

All rows are context (released before the window). Parameter counts are not disclosed by any of these vendors.

03Open-weight and Chinese models

Only DeepSeek shipped usable open weights in the window; MiniMax's are a promise dated Oct 23

Two models count as window releases on the open-weight side. Muse Spark Open, Reflection Beam 1.0 and Kimi K3 shipped earlier and are context baselines.

The two window models

Live on Oct 19 WindowWeights announced

1M context; takes text, image and video, returns text; allows 524,288 output tokens and always reasons, at five effort levels. Access is the MiniMax API, M Plan, MiniMax Code and OpenRouter. Size is not disclosed: some pages say 428B, but that is M3's size. MiniMax says the anonymous "Space Bunny" model on OpenRouter, which processed over 200 trillion tokens, was an early version.

Three source conflicts

Vals AI lists $0.60 / $2.40 and Oct 20; we follow MiniMax's post and OpenRouter, Oct 19 and $0.15 / $0.60. MiniMax's post says weights come "later" while its X post, relayed by others, says Oct 23. The material shows no weights or licence, so the status is announced.

List price per 1M tokens · vendor list
$0.15input
$0.60output
$0.015cached input
50%of M3's $0.30 / $1.20 on OpenRouter

OpenRouter's free window ended Oct 22 at 12:00 UTC, so list price is in effect. MiniMax's "70% lower agent cost" is a vendor claim about cost per task, not per token. Artificial Analysis found a 93% hallucination rate (module 04).

Shipped Oct 17 WindowWeights public · MIT

A "minor update" to the Sept 10 V4.1-Flash, with MIT weights on Hugging Face and ModelScope. DeepSeek's pages, read by CodePick on Oct 18, give 1M context and 384K max output. They disagree on size: a 552B backbone with 8B active on input in the Sept 10 post, versus 763B on the Hugging Face cards, unexplained.

Vendor-reported gains Vendor claim

DeepSWE v1.1 74.2 → 77.0 and Terminal-Bench 4.0 31.2 → 42.3 against the Sept build, with no independent confirmation yet.

Peak vs off-peak · per 1M tokens, in / out
$0.30 / $1.20peak, weekdays 01:00–04:00 and 06:00–10:00 UTC
$0.15 / $0.60off-peak, half of peak

The headline $0.15 / $0.60 is the off-peak rate. MiniMax's flat price equals DeepSeek's off-peak and is half its peak. Token prices were unchanged by the Oct 17 update.

Search and Fetch APIs WindowLive · Oct 17

$0.75 per 1,000 calls each, capped at 5 QPS per account. Server-side calls through DeepSeek Harness, Claude Code and Codex are free until Oct 31 at 16:00 UTC. AI Weekly says "November 1", the same moment, since Nov 1 00:00 Beijing time is Oct 31 16:00 UTC.

Illustration Illustrative

An agent making 1,000 searches and 1,000 fetches adds 2 × $0.75 = $1.50 before token costs. 20 searches per task cost 20 × $0.00075 = $0.015, about 8% of DeepSeek's chart figure of under $0.20 per DeepSWE task.

For builders

Cap search spend before Oct 31, when free server-side calls end. DeepSeek is the only window model you can download today, but price a daytime Beijing workload at the peak rate.

Open-weight and Chinese models at a glance

ItemKey figuresDateStatus (Oct 24)Source
MiniMax M3.1 Flash Window1M context; size not disclosed; $0.15 / $0.60 per 1M in / outOct 19Shipping; weights announced for Oct 23, unconfirmedMiniMax
DeepSeek V4.1-Flash-1017 Window1M context; 552B or 763B (sources differ); $0.15 / $0.60 off-peak, $0.30 / $1.20 peak; MITOct 17Shipping; weights publicThe Decoder; CodePick
DeepSeek Search and Fetch Window$0.75 per 1,000 callsOct 17LiveThe Decoder
Meta Muse Spark Open Context816B / 42B active; 1M context; hosted $1.25 / $4.25; 256 experts, 8 routed per tokenOct 15Shipping; Together's free promotion ended Oct 18CometAPI; TechPilot
Reflection Beam 1.0 Context501.3B / 23.4B active (4.67% active); 1M; Apache 2.0Oct 16 (weights)Shipping; own API is a free beta with no official priceData Studios
Kimi K3 Context2.8T / 104B active; 1M; $3 / $15; download 1.56 TBJul 16 (weights Jul 27)Shipping; no new release in the materialFello AI

Reflection's "3 to 4 times less compute than GLM-5.2" is a vendor claim that counts only generation compute. Self-hosting Muse Spark Open needs about 530 GB even in NVFP4.

Licence and access risk

Open-weight no longer means permissive. DeepSeek is MIT and Beam is Apache 2.0, but several models carry custom licences with revenue triggers. Internal use is exempt, so the triggers bite hosting businesses.

ModelLicenceTrigger
DeepSeek V4.1-Flash-1017MITNone
Reflection Beam 1.0Apache 2.0None
Kimi K3Custom$20M model-as-a-service threshold
Meta Muse Spark OpenMuse Model LicenseSeparate agreement above $20M revenue for model-as-a-service; "Built with Muse Spark Open" credit
Qwen3.8Custom$50M revenue
MiniMax M3.1 FlashUnpublishedNot known
DHS order Reported

Bars federal civilian agencies from buying DeepSeek products; notice published Oct 20 per PYMNTS. It names no other lab.

Chinese export-control draft Reported

A draft list dated Oct 16 covers large models; weights already released are reportedly exempt.

Publishing rules Reported

The Decoder separately reports Beijing may tighten rules on publishing new open-weight models.

04Benchmark comparison

No window model tops a headline board, and vendor tables are claims to reproduce

This module separates independent results from vendor claims. Snapshots are dated, and scaffolds, effort settings and runs differ between boards, so compare only like with like.

Artificial Analysis Intelligence Index

Window modelContext model
Independent · AA v4.3.2 · board updated Oct 22

All six are context models. Muse Wonder Full is 57.6 − 55.8 = 1.8 points behind Opus 5.5 but limited to Muse Code subscribers on $50 and $200 plans. Argon is 5.0 points back, though AA ran it only at "high" and Opus 5.5 at "max", so the gap is not a controlled comparison.

Previous generation Reported · one AA-fed table

Opus 5.5 57.6 vs Opus 5 at 50.8 and Opus 4.8 at 41.8; Sonnet 5.5 56.0 vs Sonnet 5 at 38.2 (+17.8); GPT-6 Astra 52.7 vs GPT-5.6 Sol at 47.0.

Source: Artificial Analysis via AICoder (board updated 2026-10-22); Gemini 4 Argon 52.6 from Fello AI, page of Oct 13. Independent measurement.

Window models against peers

AA measure (as of Oct 21)Intelligence IndexCost per index taskHumanity's Last ExamHallucination rate (lower is better)
MiniMax M3.1 Flash Window43$0.2248.0%92.8%
DeepSeek V4.1 Flash 1017 Window45$0.2643.3%66.8%
GLM-5.3 Flash Context42$0.2839.9%27.6%
Gemini 3.8 Flash Context41$1.2448%n/a
MiniMax M3 Context29$0.5139.0%18.4%

Source: Artificial Analysis via aimlapi, as of Oct 21, 2026 · independent measurement. AA's headline score for MiniMax is 42, up 13 from M3; OpenRouter's listing shows 42.7, which this table rounds to 43. Cost per task fell (0.51 − 0.22) ÷ 0.51 = 57% from M3.

Reading: MiniMax M3.1 Flash buys an index of about 43 at $0.22 per task, but 92.8% of its misses are confident errors. DeepSeek V4.1 Flash-1017 leads it on both independent indexes (45 vs 43 on AA, 61.26% vs 53.78% on Vals Index v2.2).

Vendor claims against independent results

MeasureVendor figureIndependent figureGap
MiniMax output speedAbove 200 tokens/s Vendor claim93 tokens/s (AA) IndependentAI/ML API's own test: 109About half the claim
MiniMax, Terminal-Bench 4.038.1 Vendor claim25.8 (AA) Independent12.3 points
DeepSeek, Terminal-Bench 4.042.3 (own card) Vendor claim33.8 (AA) Independent8.5 points
DeepSeek, DeepSWE v1.177.0, up from 74.2 Vendor claimNo independent confirmation yetNot available

Harness differences explain part of the gaps, so vendor tables are claims, not rankings. MiniMax's self-run DeepSWE of 73.7 trails DeepSeek's 77.0. On Vals Index v2.2, MiniMax scores 53.78%, 15th of 22.

Other boards and coding evidence

BoardLeadersBasis and date
LMArena text#1 Gemini 4 Argon 1525.4; #2 Opus 5.5 1507.1Human-vote Elo · mirror updated 2026-10-22. The 18.3 Elo gap is within noise (a guide treats shifts under 25 as noise).
LMArena Code (WebDev)#1 Opus 5.5 1813; #2 GPT-6 Astra 1786.1Human-vote Elo · fetched 2026-10-12
Vals IndexArgon 68.90%; Sonnet 5.5 67.04%; Opus 5.5 66.97%Date not stated. Another Vals board has Sonnet 5.5 first at 70.8%; we do not mix the two.
Source conflictsMythos 5 at 1531; Opus 4.6 (Fast) first at 1500Two other tables disagree with the LMArena text order; we follow the two sources that agree Argon leads text.
ModelMercor extended pass@1Original-set scoreChange (points)
DeepSeek V4.1-Flash82.7%82.9%−0.2
Claude Opus 582.0%93.5%−11.5
Kimi K378.7%83.3%−4.6
Claude Opus 5.566.0%98.2%−32.2
Claude Sonnet 5.557.3%96.7%−39.4
GPT-6.1 Sol45.3%87.3%−42.0

Mercor via BenchLM, Oct 19, 2026 capture, 150 samples per row, display-only. Extended-set margins are ±9 to 13 points per row, so the top three (83.3%, 82.7%, 82.0%) are effectively tied. Whether the 32 to 42 point falls on the newest rows reflect saturation of the original set is not established.

RunScoreCost per attemptCost per solved task
GPT-6 Astra, extra-high74.1% (±2.9 pp)$4.43$4.43 ÷ 0.741 = $5.98
Gemini 3.8 Flash, high73.8% (±1.4 pp)$2.36$2.36 ÷ 0.738 = $3.20
GPT-6 Astra, low67.0%$1.60Top setting buys 7.1 points for 2.8× the cost

DeepSWE v1.1 (Datacurve, mini-swe-agent, 113 tasks, results of 2026-09-22) is the cleanest like-for-like view; the top two scores are tied, so cost decides. Scale Labs' SWE-Bench Pro V2 HARD board (Oct 19 snapshot) mixes model, scaffold and effort, so no generation claim is safe.

ModelAA Intelligence IndexNote
GLM-5.345Context
DeepSeek V4.1 Flash 1017 Window45Oct 17 release
Kimi K344Context
Meta Muse Spark Open39Reproduced by Meta's card; VentureBeat found no independent listing at launch
Reflection Beam 1.030Vendor-reported 81.6% on SWE-bench Verified contrasts with a DeepSWE v1.1 of 44.4 against 74.2 for DeepSeek's September Flash

One AA table of Oct 19, 2026 · independent measurement. Rank on AA index plus cost per task, check coding on boards with matched scaffolds, and treat every vendor table as a claim to reproduce.

05Price and context

The rate card is a poor guide: cost per task, peak hours and a dated Dec 1 doubling decide the bill

Between Oct 17 and Oct 23 prices moved in three places: DeepSeek's Search and Fetch fees, MiniMax's cheap M3.1 Flash, and a Google price page, revised Oct 19, that lists Gemini 4 Argon doubling on Dec 1 (the schedule was already public on Oct 13). OpenAI and Anthropic list prices show no dated change in the window.

Argon month explorer

$27060 × $2 + 15 × $10 = $270Standard rate of $2 / $10 per 1M tokens, in effect until Nov 30.

Illustrative Assumed usage: 60M input and 15M output tokens a month. Prices reported by AionX; batch and priority rows are secondary listings.

DeepSeek and MiniMax rate explorer

$0.30 / $1.20per 1M tokens, in / out · weekdays 01:00–04:00 and 06:00–10:00 UTCDeepSeek peak. Budget Beijing daytime agent runs at this rate; Kingy's blended $0.53 equals (3 × 0.30 + 1.20) ÷ 4.

Reported CodePick's re-check of DeepSeek's pages, Oct 18; MiniMax release post and OpenRouter, Oct 19. Token prices did not change with the Oct 17 update.

Cost per Artificial Analysis index task

Window modelContext model
5.6× for one point less

Gemini 3.8 Flash costs $1.24 ÷ $0.22 ≈ 5.6 times more per task than MiniMax M3.1 Flash, for one point less on the index (41 vs 42 in this table).

Same rate card, different bill Reported

Haiku 5.5 and GPT-6 Luna both list $0.10 / $0.50, yet an index task costs $0.21 on Haiku and $0.07 on Luna, three times as much, because Haiku writes far more output. Muse Wonder costs $4.52 per task for 52.4 against $0.72 for GPT-6.1 Sol at 51.8, about 6.3× for 0.6 more points.

Source: Artificial Analysis via VentureBeat (index shown in brackets; MiniMax M3.1 Flash is 42 here and 43 in the AI/ML API table, as 42.7 rounded) · independent measurement · as of Oct 21, 2026 · approximate values.

Price and context at a glance

ItemUSD per 1M tokens (in / out) and contextDateStatus (Oct 24)Source
DeepSeek V4.1-Flash-1017, 1M contextPeak $0.30 / $1.20; off-peak $0.15 / $0.60Oct 17 (window)In effect; token prices unchangedCodePick, reading DeepSeek pages
DeepSeek Search and Fetch APIs$0.75 per 1,000 calls, eachOct 17 (window)In effect; free in Harness, Claude Code, Codex to Oct 31 16:00 UTCThe Decoder
MiniMax M3.1 Flash, 1M context$0.15 / $0.60; cached $0.015Oct 19 (window)ShippingMiniMax release post; OpenRouter
Google Gemini 4 Argon, 1,048,576 unified$2 / $10 intro; $4 / $20 from Dec 1GA Oct 13 (context); price page revised Oct 19, schedule public Oct 13Intro in effect; rise announcedLLM Data Hub quoting Google; AionX; Shattered
OpenAI GPT-6 Astra / 6.1 Sol / Luna, 1.05M each$10 / $50; $2 / $10; $0.10 / $0.50Astra Sep 3; 6.1 Sol Sep 29Context; in effectBenchLM
Anthropic Fable 5.1 / Opus 5.5 / Sonnet 5.5 / Haiku 5.5, 1M each$10 / $50; $4 / $20; $2 / $10; $0.10 / $0.50Sep 1 / Sep 22 / Sep 28 / Oct 7Context; in effectFello AI
Meta Muse Wonder$4 / $20; cached $0.20Oct 12Context; in effectDevX
Meta Muse Spark Open, hosted, 1M$1.25 / $4.25; cached $0.15Oct 15Context; in effecteesel AI
Context has converged near 1M

1M tokens for all four Claude models and 1.05M for the GPT-6 tiers. Argon shares one pool of 1,048,576 tokens across input, thinking and output; its long-decode ceiling is 1,048,576 ÷ 65,536 = 16× the earlier 64K output limit.

Surcharges now separate the leaders

Haiku 5.5 charges $0.50 / $2.50 past 100,000 prompt tokens, five times its base rate. GPT-6 Astra reprices the whole request past 272K input tokens (CloudZero, Sept 4 update): a 300K-token prompt costs 0.3 × $20 = $6.00 for input, not $3.00. Argon and Muse Wonder list no tiers.

No Western list-price cut Reported

Kingy's Oct 19 check found no list-price change among 17 tracked models since Sept 20. The small-model median fell $0.53 → $0.26 (−50.0%) from earlier replacements, not cuts. OpenAI's older GPT-5.6 Sol sits at a promotional $4 / $20 "through at least November 21" per BenchLM; sources conflict.

$Judgement: compare cost per task, not the rate card; budget Argon at $4 / $20 from Dec 1; and cap DeepSeek search spend before Oct 31. Reflection Beam, with weights since Oct 16, has no official price during its free beta.
06Developer and user feedback

The week's sharpest complaint was trust, not speed or price

All feedback here is anecdotal (small tests, blog posts, comment threads) unless marked independent measurement, and none of it replaces module 04's benchmark evidence.

Right more often, wrong with confidence

CorrectConfidently wrongAbstained or partial
How to read 92.8%

AA's AA-Omniscience "hallucination rate" is the share of non-correct responses that were confidently wrong rather than partial or refused. With 56.2% correct, 43.8% were not, and 0.928 × 43.8 = 40.6% of all questions got a confident wrong answer.

Against DeepSeek and GLM

M3.1 Flash gets about 13 points more questions right than DeepSeek but is wrong on a similar share (40.6% vs 38.1%), and on twice GLM-5.3 Flash's share (20.0%), because it attempts nearly everything. AA's overall AA-Omniscience score is 16.

Source: Artificial Analysis via AI/ML API, as of Oct 21, 2026 · independent measurement. The wrong and abstained shares are our arithmetic: abstained or partial = 100 − correct − wrong. Values: MiniMax M3.1 Flash 56.2 / 40.6 / 3.2; DeepSeek V4.1 Flash 1017 42.9 / 38.1 / 19.0; GLM-5.3 Flash 27.5 / 20.0 / 52.5; MiniMax M3 (predecessor) 16.7 / 15.3 / 68.0.

Feedback at a glance

Model and signalKey figureDateStatusSource
MiniMax M3.1 Flash WindowFactual reliability56.2% correct, but 92.8% of misses were wrong answers, not abstentionsAs of Oct 21Independent measurementAI/ML API; VentureBeat
MiniMax M3.1 FlashHands-on run49 of 51 runs passed; 109 tokens/s vs MiniMax's "above 200"; the model "often invented facts"Oct 21Anecdotal testAI/ML API
MiniMax M3.1 FlashDeveloper mood"Split": "benchmaxxing" and context drift vs preferred to rival Flash models; no countsOct 21Anecdotalkie.ai
DeepSeek V4.1-Flash-1017 WindowThree-task testAccuracy 3/3, level with GPT-5.4-mini; median latency 2.5 s vs 0.7 sNot statedAnecdotal; build not statedActivepieces
Gemini 4 Argon ContextWriting test180/190 rule checks vs 190/190 for Gemini 3.8 Flash; 140 runsAfter Oct 13AnecdotalPuter
Gemini 4 Argon ContextComment threads518 comments; 29% positive, 55% mixed, 16% skepticalc. Oct 11Aggregator summarydaily.dev
Meta Muse Spark Open ContextLaunch thread914 Hacker News points, 477 comments on day oneOct 15Reportedeesel AI

Model notes

Speed and reasoning

AI/ML API measured 109 tokens/s against AA's 93 and MiniMax's "above 200"; another write-up puts AA's figure near 105. Either is about half the vendor claim. A developer reading the docs found that disabling thinking returns an HTTP 400 error, so every request pays for reasoning.

Usage signal is unreconciled

OpenCode says the "Space Bunny" stealth run ranked first for 12 consecutive days and served 106T tokens; a routing marketplace reported 56.7T. That totals 106 + 56.7 = 162.7T, short of MiniMax's "over 200T". Space Bunny was only an early build. Miraflow (blog opinion) advises checkable, high-volume agent steps only.

Seamless upgrade

DeepSeek shipped the checkpoint on Oct 17 behind the unchanged deepseek-flash alias, so API users needed no code change. The worry is process: according to AI Weekly, DeepSeek ships updates "as a config change" without formal deprecation windows. Shattered says secondary reports described an outage of about five hours before the release; DeepSeek's changelog does not confirm it. OpenRouter shows 99.56% availability over 24 hours (date not stated).

Thin evidence Vendor claim

DeepSeek's own claim is DeepSWE v1.1 of 77.0 at just under 20 cents per task, against about 50 cents before; independent validation was not available. Activepieces compared it with GPT-5.4-mini on three tasks: equal accuracy (3/3), median latency 2.5 s vs 0.7 s (≈ 3.6×) and cost per task $0.000358 vs $0.000127 (≈ 2.8×). Simple tasks cannot confirm or refute the 20-cent claim.

Gemini 4 Argon Context

Puter's 140-run test found it followed style rules but missed length targets: 1 of 5 articles hit 550–650 words (Gemini 3.8 Flash: 5 of 5) and 9 of 15 replies stayed under 80 words (15 of 15), though Argon was faster on the article (median 16 s vs 85 s). A one-day reviewer rated it best for large inputs and numbers-heavy work, with Claude Opus 5.5 still the coding default. NeuralTrust: 82 short questions cost $0.220 on Argon vs $0.069 on Opus 5.5 (≈ 3.2×), yet a robot-arm task cost $0.72 vs $1.09.

Kimi K3 and Muse Spark Open Context

GPT Proto, a reseller of both, recommends Opus for production coding agents and Kimi for cheap, testable first drafts (opinion). One Hacker News commenter read Muse Spark Open's flat hosted pricing as a side effect of separate licensing.

!Judgement: evidence for the two window models is thin, and no Reddit, X or Hacker News thread on them is in the material. It supports one narrow rule: use the cheap Flash tier for checkable first passes and pilot on your own workload before switching.
07What to watch next

Read the week by reader, watch the dated items, and treat promises and drafts as risks

This module turns the earlier ones into implications by reader and a dated timetable. It uses only facts from modules 01–06 and is not investment or procurement advice.

What changed, and what it means by reader

Builders (agents)

What changed

DeepSeek V4.1-Flash-1017 shipped on Oct 17 with MIT weights; Search and Fetch cost $0.75 per 1,000 calls, free in Harness, Claude Code and Codex until Oct 31 at 16:00 UTC.

Implication

Cap search spend before Oct 31; 1,000 searches plus 1,000 fetches add 2 × $0.75 = $1.50 before token costs.

Builders (self-hosting)

What changed

MiniMax M3.1 Flash is live, but weights and licence are not confirmed; Kimi K3 and Muse Spark Open carry $20M revenue triggers.

Implication

Treat DeepSeek as the only window model you can download today; read licences before building a hosted product.

Builders (quality)

What changed

AA measured a 92.8% hallucination rate on M3.1 Flash; hands-on tests passed 49 of 51 runs but the model "often invented facts".

Implication

Use cheap Flash models for checkable first passes and pilot on your own workload.

Buyers (Google)

What changed

Argon is GA at $2 / $10 until Nov 30, then $4 / $20.

Implication

Budget $540, not $270, for the illustrative 60M / 15M month from Dec 1.

Buyers (all vendors)

What changed

Western list prices did not change in the window; cost per task varies more than rate cards.

Implication

Compare cost per task: $0.22 for M3.1 Flash against $1.24 for Gemini 3.8 Flash.

Investors

What changed

The window's launches came from Chinese labs at $0.15–$0.30 input; Anthropic still leads the independent index at 57.6.

Implication

Watch whether price pressure reaches Western list prices; none has so far. This is a description, not investment advice.

Watch-list for the coming week

MiniMax weights Announced

The Oct 23 date has passed, and the material shows no weights or licence. Until they appear, the model is "announced" as open-weight.

DeepSeek search billing Oct 31

Free server-side calls end Oct 31 at 16:00 UTC, the same instant as Nov 1 00:00 Beijing time.

Independent confirmation

DeepSeek's DeepSWE v1.1 score of 77.0 has none yet, and Muse Spark Open's AA score of 39 comes from Meta's card with no independent listing at launch.

Argon's schedule Dec 1

The Dec 1 rise is 38 days away (Oct 24 to Dec 1), so migrations to Batch at the new rates ($2 / $10) should be planned now.

Gaps

The material has no Qwen or Kimi release in the window and nothing on Fibo-2.0.

Key dates

DateEventState on Oct 24, 2026Source
Aug 16, 2026DeepSeek peak and off-peak price split startsIn effectCodePick
Oct 12, 2026Meta Muse Wonder and Wonder Full releasedIn effectDevX
Oct 13, 2026Gemini 4 Argon opens through the paid Gemini APIIn effectTowards Data Science
Oct 17, 2026DeepSeek V4.1-Flash-1017 weights; Search and Fetch fees startIn effectThe Decoder
Oct 19, 2026MiniMax M3.1 Flash goes live at $0.15 / $0.60In effectMiniMax
Oct 22, 2026OpenRouter free window for M3.1 Flash ends at 12:00 UTCIn effectOpenRouter
Oct 23, 2026MiniMax weights promised; OpenAI shutdown of 17 older entries scheduledIn effect as dates; completion not confirmedMiraflow; QCode
Oct 31, 2026DeepSeek Search and Fetch free period ends, 16:00 UTCUpcomingThe Decoder
Nov 21, 2026GPT-5.6 Sol promotional $4 / $20 "through at least" this date (sources conflict)UpcomingBenchLM
Nov 30, 2026Argon introductory $2 / $10 rate endsUpcomingAionX
Dec 1, 2026Argon rates double to $4 / $20UpcomingAionX
Jan 1, 2027Gemini 3.8 Flash and 3.6 Flash double from $0.75 / $3.75 to $1.50 / $7.50UpcomingAionX
7The week's real change was price and trust, not capability: the cheapest models arrived from DeepSeek and MiniMax, the one dated increase is Argon's on Dec 1, and the independent boards are still led by September's Anthropic models.