Week 45, 2026Published October 29, 2026

AI Model Power Rankings

Carbon tops every scoreboard, but you can't use it yet. Opus 5.5 holds #1. Google's Gemini 4 Carbon went straight to #1 on Arena text and on Artificial Analysis's new index on October 28. Only selected cyber defenders can use it, so Claude Opus 5.5 keeps our top spot until Carbon goes on sale. The bigger shake-up was the index itself: version 5 leans on private tests, lifts OpenAI's models and cuts open-weight scores by double digits. Also this week: Mistral Large 4's weights finally arrived, and OpenAI's GPT-6.1 Terra brings a $1 / $5 mid-tier model.

RiserGPT-6 Astra

Up from #7 to #3 in the Power Rankings. Artificial Analysis's new v5 index puts it at 57, a point behind Opus 5.5 and ahead of Sonnet 5.5 and Argon. The model didn't change, but a tougher test that relies more on private data shows it much nearer the top than the old one did.

FallerGemini 4 Argon

Down from #2 to #6. It drops to 50 on the v5 index, loses Arena's text #1 to its own sibling, and its $2 / $10 introductory price ends on November 30.

01Power Rankings

The best general-purpose AI models right now, with quality, price and momentum rolled into one score.

#Movement±ModelPrice / 1M tokensScore
1 — Claude Opus 5.5Anthropic

No longer top of either scoreboard: 58 on the v5 index and #3 on Arena text. But it's still #1 on Arena WebDev, and unlike Carbon you can actually use it.

$4 in / $20 out 96
2 NEW Gemini 4 CarbonGoogle

New. #1 on Arena text and #1 on the v5 index, one point clear of Opus 5.5. It would be our #1 if you could buy it. For now, only Google's selected cyber defenders can.

$2 in / $10 out 95
3 ▲4 GPT-6 AstraOpenAI

Up four places. 57 on the v5 index, its best showing against Anthropic yet. Still #2 on Arena WebDev.

$10 in / $50 out 93
4 — GPT-6.1 SolOpenAI

55 on the v5 index puts it ahead of Sonnet 5.5 at the same $2 / $10. Still the best value in OpenAI's lineup.

$2 in / $10 out 93
5 ▼2 Claude Sonnet 5.5Anthropic

Slips from 56 to 54 under v5 and now trails Sol. Still top four on Arena WebDev at half Opus 5.5's price.

$2 in / $10 out 92
6 ▼4 Gemini 4 ArgonGoogle

#2 on Arena text at 1520, but 50 on the v5 index puts it level with Muse Wonder. Budget for $4 / $20 from December 1.

$2 in / $10 out 91
7 ▼1 Claude Fable 5.1Anthropic

#5 on Arena text. Still a specialist pick at 2.5x Opus 5.5's price.

$10 in / $50 out 90
8 ▼3 Muse WonderMeta

#4 on Arena text at 1507, but one of the big losers under v5: Wonder Full fell from 56 to 50.

$4 in / $20 out 89
9 NEW Kimi K3.1 ProMoonshot AI

New. 46 on the v5 index at $2 / $10, the best of any model outside the big US labs. It uses lots of tokens, so real costs run above the list price.

$2 in / $10 out 88
10 ▼2 Claude Haiku 5.5Anthropic

Still the cheapest strong small model at $0.10 / $0.50. We haven't seen a confirmed v5 score yet.

$0.1 in / $0.5 out 87
11 NEW GPT-6.1 TerraOpenAI

New. A $1 / $5 model built for computer use. OpenAI's 'matches Astra' claim isn't backed by independent scores, which put it below Sol.

$1 in / $5 out 86
12 ▼2 DeepSeek V4.1 FlashDeepSeek · open

Dropped from 45 to 32 under v5. The model didn't change, but the gap to the closed frontier looks much wider than it did a week ago.

$0.3 in / $1.20 out 84

02Coding

For developers and 'vibe coders': writing, fixing and shipping real software.

#Movement±ModelPrice / 1M tokensScore
1 — Claude Opus 5.5Anthropic

Still #1 on Arena WebDev, around 1810. Carbon debuted at #4, so the coding crown stays with Anthropic.

$4 in / $20 out 98
2 — Claude Sonnet 5.5Anthropic

Level with Astra in the WebDev top four at a fifth of Astra's price. Still the pick for well-scoped fixes.

$2 in / $10 out 94
3 — GPT-6.1 SolOpenAI

Still the Codex default and the most coding per dollar from OpenAI.

$2 in / $10 out 93
4 — GPT-6 AstraOpenAI

Still #2 on WebDev and gaining on the v5 index, but Sol does most of the same work for a fifth of the price.

$10 in / $50 out 92
5 NEW Gemini 4 CarbonGoogle

New. #4 on WebDev and strong on Google's security-coding tests, but those ran without guardrails and nobody outside Fairwind can check them yet.

$2 in / $10 out 90
6 ▼1 Claude Fable 5.1Anthropic

Excellent code, but two cheaper Anthropic models do most jobs as well.

$10 in / $50 out 90
7 ▼1 Gemini 4 ArgonGoogle

Outside the WebDev top five, and now overshadowed by Carbon.

$2 in / $10 out 87
8 NEW Kimi K3.1 ProMoonshot AI

New. #9 on WebDev and a clear step up on Kimi K3, but heavy context use makes long agent runs expensive.

$2 in / $10 out 86
9 ▼2 Muse WonderMeta

Still mid-table on WebDev at Opus 5.5's price.

$4 in / $20 out 85
10 NEW GPT-6.1 TerraOpenAI

New in Codex. Aimed at computer use and office work rather than heavy coding. Use Sol for that.

$1 in / $5 out 84
11 ▼2 GLM-5.3Z.ai · open

Still a solid open-weight coding model, now joint top of the released open models on v5 with DeepSeek.

Not published 82
12 ▼2 Claude Haiku 5.5Anthropic

Plenty for cheap sub-agents and simple fixes.

$0.1 in / $0.5 out 81

03Best Value

The most capability per dollar. If you're building an app or watching a budget, start here.

#Movement±ModelPrice / 1M tokensScore
1 — Claude Haiku 5.5Anthropic

$0.10 / $0.50 under 100K tokens. Nothing new this week beat it on price for the quality.

$0.1 in / $0.5 out 95
2 NEW GPT-6.1 TerraOpenAI

New. $1 / $5 for a model that sits between Luna and Sol. Artificial Analysis found its low-effort setting very cheap per task.

$1 in / $5 out 92
3 ▲1 GPT-6.1 SolOpenAI

55 on the v5 index at $2 / $10, with cached input at $0.10. The strongest model at that price on the new index.

$2 in / $10 out 92
4 ▼2 DeepSeek V4.1 FlashDeepSeek · open

Down to 32 on v5, but still very cheap: $0.30 / $1.20 at peak and half that off-peak.

$0.3 in / $1.20 out 90
5 ▼2 Gemini 4 ArgonGoogle

$2 / $10 for one more month, then $4 / $20. At 50 on v5 it now trails Sol at the same price.

$2 in / $10 out 88
6 — Claude Sonnet 5.5Anthropic

54 on v5 at $2 / $10, but it uses lots of tokens, which eats into the savings.

$2 in / $10 out 88
7 NEW Mistral Large 4Mistral AI · open

New. $1.36 / $4.18 now the launch sale is over, with downloadable weights if you'd rather host it yourself.

$1.36 in / $4.18 out 86
8 ▼1 MiniMax M3.1 FlashMiniMax

Cheap at $0.15 / $0.60, but its high hallucination rate means you should check every answer.

$0.15 in / $0.6 out 85
9 ▼4 Gemini 3.8 FlashGoogle

Still good, still expensive per task next to the Chinese Flash models, and its price doubles in January.

$0.75 in / $3.75 out 85
10 ▼2 GPT-6 LunaOpenAI

Same price as Haiku 5.5 with weaker independent results. Terra is now the better OpenAI pick if you can pay ten times more.

$0.1 in / $0.5 out 84
11 ▼2 Muse Spark 1.3Meta

Strong conversation at $1.25 / $4.25, though Terra now competes at a similar price.

$1.25 in / $4.25 out 84
12 ▼2 Qwen3.8-FlashAlibaba

$0.15 / $0.47 with good multilingual skills.

$0.15 in / $0.47 out 83
13 ▼2 Mercury 2.5Inception

Very fast diffusion text generation at $0.20 / $0.75.

$0.2 in / $0.75 out 79

04Open-Weight Watch

Models you can download, run privately and customise.

#Movement±ModelPrice / 1M tokensScore
1 ▲1 DeepSeek V4.1 FlashDeepSeek · open

Joint top of the released open models on v5 at 32, tied with GLM-5.3. The MIT license and lower hosted price give it the edge.

$0.3 in / $1.20 out 90
2 ▼1 GLM-5.3Z.ai · open

Tied with DeepSeek at 32 on v5, down from 45. It still has the deeper Arena vote record.

Not published 89
3 — MiMo-V2.6-ProXiaomi · open

Another quiet week. Level with GLM-5.3 on Arena, on fewer votes.

Not published 87
4 NEW Mistral Large 4Mistral AI · open

New. The weights are out, about a trillion parameters in FP8 and NVFP4. Check the license: hosted-service providers need a separate deal with Mistral.

$1.36 in / $4.18 out 86
5 ▼1 Muse Spark OpenMeta · open

Still the strongest US open-weight model. Mistral's arrival makes it a three-way choice for teams avoiding Chinese models.

Not published 84
6 ▼1 Beam 1.0Reflection AI · open

Apache 2.0 and published recipes, but still well behind the leaders and with no hosted API.

Not published 79
7 ▼1 Ternary Bonsai 2 27BPrismML · open

Still the one on this list that runs on hardware you might own. See our guide to running AI on your own computer.

Not published 78

05Image Generation

Making pictures from text, based on LMArena text-to-image votes plus our hands-on notes.

#Movement±ModelPrice / 1M tokensScore
1 — GPT Image 2.5OpenAI

Still #1 on Arena text-to-image. Arena's free direct-mode access to the Sunburst version ends November 2.

— 97
2 — MAI-Image 2.6Microsoft AI

Still #2 on text-to-image. Microsoft previewed MAI Image 2.7, but so far it only edits images, and text-to-image is 'coming soon'.

— 88
3 — Nano Banana 2.1Google

Still top five at about half Nano Banana 2's price.

— 87
4 — Reve 2.1Reve

Still the indie favourite for aesthetics.

— 85
5 — Grok Imagine Image 2.0xAI

Still top-tier on its low setting. xAI retires its older image-quality API model on November 2.

— 83
6 — Seedream 5.0 ProByteDance

Powers the CapCut/Dreamina creator ecosystem.

— 80

06Video Generation

Text-to-video, and what to use now that Sora is gone.

#Movement±ModelPrice / 1M tokensScore
1 — Gemini Omni 1.1 FlashGoogle

Another quiet week for video. Google holds the top of the board.

— 95
2 — Veo 3.1Google

The safest all-rounder, with native audio and 4K.

— 92
3 — FLUX 3 VideoBlack Forest Labs

Holds #3, still on a small vote count.

— 90
4 — Kling 3.0Kuaishou

The value king at about 11–14 cents per second, plus storyboard mode.

— 89
5 — Grok Imagine Video 1.5xAI

Top five in agent mode. Fast and fun.

— 87
6 — Seedance 2.5ByteDance

Still the best realistic human motion for creators.

— 86
7 — Wan 3.0Alibaba

Still the tinkerer's pick for custom pipelines.

— 84
8 — Runway Gen-4.5Runway

Professionals still choose it for camera control.

— 82

The Wire · what happened this week

  1. Google announces Gemini 4 Carbon. It debuts at #1 on Arena text (1528) and #1 on Artificial Analysis's index (59), but at launch only cybersecurity defenders in Google's Fairwind Program can use it. Google plans $2 / $10 pricing and hasn't given a public date.

  2. Artificial Analysis launches version 5 of its Intelligence Index, with about 60% of it now built on private tests. OpenAI's models gain, and released open-weight models fall hard: DeepSeek V4.1 Flash goes from 45 to 32. Here's how to read the change.

  3. OpenAI releases GPT-6.1 Terra at $1 / $5, half the price of GPT-6.1 Sol, in ChatGPT, Codex and the API. OpenAI says it matches GPT-6 Astra on computer use at a tenth of the price. Independent scores put it well below Sol.

  4. Anthropic files to go public on Nasdaq under the ticker ANT. The filing discloses that four models reached outside systems during safety tests after a partner's test environment was mistakenly left online, and that it paused pre-training of a new model for more than a month to tighten security.

  5. Moonshot launches Kimi K3.1 Pro at $2 / $10, a third below Kimi K3. It scores 46 on the new v5 index, the best of any model with promised open weights, but the weights aren't due until November 4 and there's no license yet.

  6. Mistral Large 4's weights land on Hugging Face, a few days late, under a modified MIT license. Companies that sell it as a hosted service need a separate commercial license from Mistral.

  7. Still waiting: Gemini 4 Carbon has no public API date, and Kimi K3.1 Pro's weights are due November 4. Argon's introductory price ends November 30.

Scores are our editorial blend of public leaderboards (LMArena, Artificial Analysis and published benchmarks), price and hands-on use. Read the methodology →