Week 43, 2026Published October 15, 2026

AI Model Power Rankings

Argon finally opens, and Meta turns up at Opus prices. Two weeks after announcing it, Google opened Gemini 4 Argon to paying customers on October 13 at $2 / $10, a price that doubles in December. A day earlier, Meta launched Muse Wonder, its first frontier model, at exactly Claude Opus 5.5's price, then released the weights of an 816-billion-parameter Muse Spark Open on Wednesday. Opus 5.5 keeps #1: it still leads the independent Artificial Analysis index and Arena's WebDev board.

RiserGemini 4 Argon

Up to #2 now that you can actually buy it. It still leads Arena's text board, and Artificial Analysis has it level with GPT-6 Astra at a fraction of Astra's price, with the lowest hallucination rate of any top model.

FallerGPT-6 Astra

Down to #7. Argon now matches it on the Artificial Analysis index for $2 / $10 against Astra's $10 / $50, and OpenAI's own GPT-6.1 Sol covers most of its coding. It's hard to recommend at the price.

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

Still top of the Artificial Analysis index at 58 and #1 on Arena WebDev. Two new rivals arrived this week, and neither beat it.

$4 in / $20 out 97
2 ▲1 Gemini 4 ArgonGoogle

Finally on sale, and still #1 with Arena text voters. Book it at $4 / $20 in your budget, though, because that's the price from December 1.

$2 in / $10 out 95
3 ▼1 Claude Sonnet 5.5Anthropic

Scores 56 on the Artificial Analysis index, ahead of Argon's 53 at the same $2 / $10. Pushed to #3 only by Argon's text-board lead.

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

A quiet week. Still the default in Codex and the best value in OpenAI's lineup.

$2 in / $10 out 93
5 NEW Muse WonderMeta

Meta's first frontier model debuts at #2 on Arena text. It costs as much as Opus 5.5 and scores six points lower on the Artificial Analysis index, so it isn't the better buy.

$4 in / $20 out 91
6 ▼1 Claude Fable 5.1Anthropic

Still superb on the hardest problems, but at 2.5x Opus 5.5's price it's a specialist pick now.

$10 in / $50 out 90
7 ▼1 GPT-6 AstraOpenAI

Argon now matches it on the Artificial Analysis index for a fifth of the list price. Keep it for long automation jobs, where it still leads.

$10 in / $50 out 88
8 — Claude Haiku 5.5Anthropic

Its second week keeps it as the best of the $0.10 models. Nothing new arrived to challenge it.

$0.1 in / $0.5 out 88
9 ▼2 Gemini 3.8 FlashGoogle

Still a text top-10 model at Flash prices, but the January price doubling is getting closer.

$0.75 in / $3.75 out 87
10 — Kimi K3Moonshot AI

Still the strongest model from outside the US labs, and still ahead of Meta's new open model on the Artificial Analysis index.

Not published 85
11 — GLM-5.3Z.ai · open

Muse Spark Open arrived to challenge it and fell short on general smarts and coding. Still the open-weight model to beat.

Not published 84
12 ▼3 Muse Spark 1.3Meta

Meta's own Muse Wonder now takes the spotlight. It's still decent value, and it actually edges Wonder on WebDev.

$1.25 in / $4.25 out 83

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. Meta's own launch table has it well ahead of Muse Wonder on ProgramBench, 70.5 to 50.0.

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

Top four on WebDev at half Opus 5.5's price. The pick for well-scoped fixes.

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

The default in Codex. Most of Astra's coding for a fifth of the price.

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

Still #2 on WebDev, but Sol does most of the same work for much less.

$10 in / $50 out 91
5 — Claude Fable 5.1Anthropic

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

$10 in / $50 out 90
6 — Gemini 4 ArgonGoogle

Now you can test it yourself. Still outside the WebDev top five, and Bloomberg reports it does worse on some practical coding jobs than its benchmarks suggest.

$2 in / $10 out 88
7 NEW Muse WonderMeta

#15 on WebDev and #12 in Arena's agent rankings. A solid debut, but not one to switch your coding agent for at $4 / $20.

$4 in / $20 out 85
8 ▼1 Kimi K3Moonshot AI

Still a popular pick for cheap coding agents.

Not published 84
9 ▼1 GLM-5.3Z.ai · open

The open-weight coding pick. On Meta's own table it beats Muse Spark Open on Terminal-Bench.

Not published 83
10 ▼1 Claude Haiku 5.5Anthropic

Independent Terminal-Bench runs land in the mid-30s. That's plenty for cheap sub-agents.

$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 and the strongest independent results at that price. Mind the 5x jump above 100K.

$0.1 in / $0.5 out 95
2 — Gemini 3.8 FlashGoogle

Top-10 text quality at Flash prices until January. Then it doubles.

$0.75 in / $3.75 out 93
3 NEW Gemini 4 ArgonGoogle

Astra-level results at $2 / $10, with Batch at half that. Its score drops in December, when the price doubles.

$2 in / $10 out 92
4 ▼1 GPT-6.1 SolOpenAI

Near-Astra coding at $2 / $10, with cached input at $0.10.

$2 in / $10 out 92
5 ▼1 Claude Sonnet 5.5Anthropic

The highest index score at $2 / $10, but it uses lots of tokens, which eats into the savings.

$2 in / $10 out 90
6 ▼1 GPT-6 LunaOpenAI

Same $0.10 / $0.50 as Haiku 5.5, with weaker independent results. Worth a look if you're already on OpenAI.

$0.1 in / $0.5 out 88
7 ▼1 Muse Spark 1.3Meta

Strong conversation at $1.25 / $4.25.

$1.25 in / $4.25 out 86
8 ▼1 Qwen3.8-FlashAlibaba

$0.15 / $0.47 with good multilingual skills. Qwen 4 is still undated.

$0.15 in / $0.47 out 85
9 ▼1 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 — GLM-5.3Z.ai · open

Meta's own launch table puts GLM-5.3 ahead of Muse Spark Open on the Artificial Analysis index, 45 to 39. Still #1 here.

Not published 91
2 — MiMo-V2.6-ProXiaomi · open

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

Not published 88
3 NEW Muse Spark OpenMeta · open

The strongest US open-weight model by Meta's count, and it leads Meta's tool-use tests. It trails the Chinese leaders on general smarts and coding, and it runs under Meta's own license.

Not published 85
4 ▼1 Ternary Bonsai 2 27BPrismML · open

Apache 2.0 and small enough for real-world hardware.

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 leads the text-to-image board. Nothing this week came close.

— 97
2 — MAI-Image 2.6Microsoft AI

Microsoft's in-house model stays just ahead of Google's newcomer.

— 88
3 — Nano Banana 2.1Google

A week in, it's still top five at about half Nano Banana 2's price. The best pick for editing in chat.

— 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.

— 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

A quiet week for video. Google still holds the top two text-to-video spots.

— 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

Near the top of Artificial Analysis's video board, lower with Arena voters. Still the tinkerer's pick.

— 84
8 — Runway Gen-4.5Runway

Professionals still choose it for camera control.

— 82

The Wire · what happened this week

  1. Meta releases the weights of Muse Spark Open, an 816B-parameter mixture-of-experts model with 42B active, under its own Muse Model License. It's on Hugging Face and the big three clouds.

  2. Gemini 4 Argon goes generally available to paid API, enterprise and Google AI Ultra customers, and to Pro and Ultra users in the Gemini app. The free tier is left out.

  3. Argon's $2 / $10 API price is introductory. From December 1 it doubles to $4 / $20, so budget for the higher rate if you're building on it now.

  4. Muse Wonder (Max) enters LMArena's text board at #2 with 1513, 12 points behind Gemini 4 Argon. It's only #15 on WebDev, slightly behind Meta's own Muse Spark 1.3.

  5. Meta launches Muse Wonder on its API at $4 / $20, the same as Claude Opus 5.5. The stronger Muse Wonder Full is only available inside Muse Code's $50 and $200 plans.

  6. Artificial Analysis scores Muse Wonder at 52 and Wonder Full at 56 on its Intelligence Index. Opus 5.5 still leads at 58.

  7. Still waiting: Mistral says Large 4's open weights land by the end of October, but the license still hasn't been published.

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