AI leaderboard · Agent work

Best AI for agents: 57 models ranked on measured results

LMArena’s Agent Arena: people give an agent real work on arena.ai, and the arena measures how the work goes with each model in charge: tasks the user marks as done, praise against complaints, corrections carried out, shell commands and calls to tools that do not exist.

Run Claude Opus 5.5 up to 60% below list price. $25 a month brings $110 of API credit and cancels any time; $25 once buys $100. Scores from LMArena’s Agent Arena, published 8 November 2026, under CC BY 4.0. Prices from each maker’s pricing page, read on 12 November 2026.

Top score
+20.0%Claude Opus 5.5 from Anthropic
Models ranked
57
Level with the leader
1
On sale with AIGROW credit
8
Data of
8 November 2026

Level: its interval overlaps the leader’s.

On LMArena’s Agent Arena, published 8 November 2026, Claude Opus 5.5 from Anthropic leads 57 models with a score of +20.0% from real agent sessions. One other model is statistically level with it. AIGROW API credit sells it at $1.60 / $8.00 instead of $4.00 / $20.00 per million input / output tokens.

Run models from this ranking below list price

AIGROW API credit runs these models through one key, billed per token at the rates below. $25 a month brings $110 of API credit and cancels any time; $25 once buys $100.

  1. No. 1Claude Opus 5.5AnthropicList price $4.00 / $20.00$1.60 / $8.00with AIGROW API creditRun Claude Opus 5.5 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026
  2. No. 3Claude Sonnet 5.5AnthropicList price $2.00 / $10.00$0.80 / $4.00with AIGROW API creditRun Claude Sonnet 5.5 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026
  3. No. 4Claude Fable 5.1AnthropicList price $10.00 / $50.00$4.00 / $20.00with AIGROW API creditRun Claude Fable 5.1 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026

US dollars per million input / output tokens. Certified genuine by AIGROW means the model passed AIGROW’s own check against the same model at its maker on 11 November 2026. No model maker reviewed or endorsed it.

Best AI for agents

The score is how much better tasks went than with the average model in the arena, not a share of tasks finished, and it comes from the arena’s own users and tools.

Agent Arena scores of 57 AI models, with their 95% intervals, sessions and costs
#ModelScoreSessionsMedian cost per taskPer 1M tokens, in / out
1Claude Opus 5.5Anthropic · Claude Opus 5.5 (Max)Run Claude Opus 5.5 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026+20.0%95% interval +17.9% to +22.0%14,358$6.31List price $4.00 / $20.00$1.60 / $8.00with AIGROW API credit
2Gemini 4 CarbonGoogle · Gemini 4 Carbon (High)+16.6%95% interval +15.9% to +17.3%53,721$1.54$2.00 / $10.00
3Claude Sonnet 5.5Anthropic · Claude Sonnet 5.5 (Max)Run Claude Sonnet 5.5 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026+16.0%95% interval +13.2% to +18.8%Its interval overlaps 2 models above it8,670$3.42List price $2.00 / $10.00$0.80 / $4.00with AIGROW API credit
4Claude Fable 5.1Anthropic · Claude Fable 5.1 (Max)Run Claude Fable 5.1 up to 60% below list priceCertified genuine by AIGROW on 11 November 2026+14.3%95% interval +12.4% to +16.3%Its interval overlaps 2 models above it17,468$6.87List price $10.00 / $50.00$4.00 / $20.00with AIGROW API credit
5GPT-6 AstraOpenAI · GPT-6 Astra (Max)Run GPT-6 Astra up to 75% below list priceCertified genuine by AIGROW on 11 November 2026+14.2%95% interval +12.2% to +16.3%Its interval overlaps 3 models above it15,520$7.04List price $10.00 / $50.00$2.50 / $12.50with AIGROW API credit
6GPT-6.1 SolOpenAI · GPT-6.1 Sol (Max)Run GPT-6.1 Sol up to 75% below list priceCertified genuine by AIGROW on 11 November 2026+12.5%95% interval +11.4% to +13.6%Its interval overlaps 3 models above it30,514$0.98List price $2.00 / $10.00$0.50 / $2.50with AIGROW API credit
7GPT-6.1 TerraOpenAI · GPT-6.1 Terra (Max)Run GPT-6.1 Terra up to 75% below list priceCertified genuine by AIGROW on 11 November 2026+12.1%95% interval +10.8% to +13.5%Its interval overlaps 4 models above it23,276$0.80List price $1.00 / $5.00$0.25 / $1.25with AIGROW API credit
8Gemini 4 ArgonGoogle · Gemini 4 Argon (High)Run Gemini 4 Argon up to 50% below list priceCertified genuine by AIGROW on 11 November 2026+10.8%95% interval +10.0% to +11.7%Its interval overlaps 2 models above it53,301$0.82List price $2.00 / $10.00$1.00 / $5.00with AIGROW API credit
9Muse Wonder Full (Max)Meta+9.1%95% interval +8.2% to +10.0%Its interval overlaps 1 model above it32,477Not publishedNo list price
10Claude Fable 5 (High)Anthropic+7.7%95% interval +6.6% to +8.8%Its interval overlaps 1 model above it51,053$3.42No list price
11Claude Opus 5Anthropic · Claude Opus 5 (Max)+7.5%95% interval +6.2% to +8.8%Its interval overlaps 2 models above it31,928$4.14$5.00 / $25.00
12GPT-6 SolOpenAI · GPT-6 Sol (Max)+7.0%95% interval +5.5% to +8.6%Its interval overlaps 3 models above it12,836$1.76$2.00 / $10.00
13Kimi K3.1 ProMoonshot AI · Kimi K3.1 Pro (Max) · open weights+5.2%95% interval +4.1% to +6.4%Its interval overlaps 2 models above it22,581$1.31$2.00 / $10.00
14Hy4Tencent+4.7%95% interval +3.2% to +6.1%Its interval overlaps 2 models above it17,888$0.59No list price
15GPT-5.6 SolOpenAI · GPT-5.6 Sol (xHigh)+4.5%95% interval +3.5% to +5.6%Its interval overlaps 3 models above it45,371$1.72$4.00 / $20.00
16Grok 4.7xAI · Grok 4.7 (xHigh)Run Grok 4.7 up to 75% below list priceCertified genuine by AIGROW on 11 November 2026+2.6%95% interval +1.2% to +4.1%Its interval overlaps 3 models above it18,848$2.91List price $2.00 / $6.00$0.50 / $1.50with AIGROW API credit
17Gemini 3.8 FlashGoogle · Gemini 3.8 Flash (High)+2.4%95% interval +1.5% to +3.2%Its interval overlaps 2 models above it52,722$0.75$0.75 / $3.75
18MiMo-V2.6-ProXiaomi · open weights+2.3%95% interval +1.4% to +3.2%Its interval overlaps 3 models above it49,297$0.17No list price
19Muse Spark 1.3Meta · Muse Spark 1.3 (Max)+2.2%95% interval +1.4% to +3.0%Its interval overlaps 3 models above it80,655$0.47$1.25 / $4.25
20DeepSeek V4.1 FlashDeepSeek · DeepSeek-V4.1-Flash-20261017 (Max) · open weights+2.1%95% interval +1.5% to +2.6%Its interval overlaps 4 models above it78,504$0.15$0.30 / $1.20
21Claude Sonnet 5Anthropic · Claude Sonnet 5 (High)+2.1%95% interval +0.9% to +3.2%Its interval overlaps 6 models above it41,726$0.91$2.00 / $10.00
22Muse WonderMeta · Muse Wonder (Max)+1.9%95% interval +0.6% to +3.3%Its interval overlaps 7 models above it13,921$1.28$4.00 / $20.00
23GPT-6 LunaOpenAI · GPT-6 Luna (Max)+1.5%95% interval +1.1% to +2.0%Its interval overlaps 7 models above it228,261$0.09$0.10 / $0.50
24GLM-5.3Z.ai · GLM-5.3 (Max) · open weights+1.0%95% interval +0.2% to +1.8%Its interval overlaps 8 models above it95,597$1.09$1.40 / $4.40
25Kimi K3Moonshot AI · Kimi K3 (Max) · open weights+0.6%95% interval 0.0% to +1.2%Its interval overlaps 4 models above it160,495$0.93$3.00 / $15.00

How to read this ranking

What the scores measure, what they leave out, and where each number comes from.

What it measures
LMArena’s Agent Arena: people give an agent real work on arena.ai, and the arena measures how the work goes with each model in charge: tasks the user marks as done, praise against complaints, corrections carried out, shell commands and calls to tools that do not exist.
What it leaves out
The score is how much better tasks went than with the average model in the arena, not a share of tasks finished, and it comes from the arena’s own users and tools.
How to read the margin
Each score carries LMArena’s 95% interval. Where two models’ intervals overlap, the sessions cannot say which is better. Rows are still numbered by score, and a row says how many models above it overlap.
Cost per task
The median cost of a task in the arena’s sessions, in US dollars, as LMArena records it. It depends on the model’s price and on how many tokens it spends.
Not updated in over 120 days
A result run more than 120 days before the newest data on these pages carries this mark, so an older result can be weighed as one.
Prices
The list price per million tokens from the maker’s own pricing page, read on 12 November 2026. It is a price per token, not per answer: a higher reasoning setting spends more tokens on the same question. Where AIGROW API credit sells a model, the list price is struck through and the price through the credit sits under it.

Source: LMArena, leaderboard dataset (revision 4217986c, published 8 November 2026), licensed under CC BY 4.0. We change no score: we add the prices and the links to our model pages.

What each of them costs to run

The price list works three everyday jobs on every model, and our own benchmark runs them on real business tasks to see which pass.

Data of 8 November 2026