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    Arena Agent Elo

    🏆 Leaderboard

    As of August 20, 2026, Claude Opus 5 is #1 for Arena Agent Elo at 12.20. Ranked by the Arena Agent Elo score 7 models in this index have a published Arena Agent Elo score. Arena Agent Elo leaderboard with live API prices. Arena Agent Elo — blind pairwise preference rating from Arena.ai agent battles.

    Updated August 20, 2026282 models33 providers
    Claude Opus 5
    Anthropic · Proprietary
    		12.20$30.00
    Claude Fable 5
    Anthropic · Proprietary
    		12$60.00
    GPT-5.6 Sol
    OpenAI · Proprietary
    		10.90$35.00
    Kimi K3OSS
    Moonshot AI · Open Source
    		10.60$18.00
    Claude Opus 4.8
    Anthropic · Proprietary
    		9.80$30.00
    GPT-5.5
    OpenAI · Proprietary
    		8.90$35.00
    Claude Opus 4.7
    Anthropic · Proprietary
    		8.20$30.00
    ChatGPT-4o Latest
    OpenAI · Proprietary
    		—$12.50
    Claude 3 Haiku
    Anthropic · Proprietary
    		—$1.50
    Claude 3 Opus
    Anthropic · Proprietary
    		—$90.00
    Claude 3 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.5 Haiku
    Anthropic · Proprietary
    		—$4.80
    Claude 3.5 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.5 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.7 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude Haiku 4.5
    Anthropic · Proprietary
    		—$6.00
    Claude Mythos 5
    Anthropic · Proprietary
    		—$60.00
    Claude Mythos Preview
    Anthropic · Proprietary
    		—$60.00
    Claude Opus 4
    Anthropic · Proprietary
    		—$90.00
    Claude Opus 4.1
    Anthropic · Proprietary
    		—$90.00
    Claude Opus 4.5
    Anthropic · Proprietary
    		—$30.00
    Claude Opus 4.6
    Anthropic · Proprietary
    		—$30.00
    Claude Sonnet 4
    Anthropic · Proprietary
    		—$18.00
    Claude Sonnet 4.5
    Anthropic · Proprietary
    		—$18.00
    Claude Sonnet 4.6
    Anthropic · Proprietary
    		—$18.00
    Claude Sonnet 5
    Anthropic · Proprietary
    		—$12.00
    Command A+OSS
    Cohere · Open Source
    		—$12.50
    Command R+OSS
    Cohere · Open Source
    		—$1.25
    Composer 2
    Cursor · Proprietary
    		—$3.00
    Composer 2 Fast
    Cursor · Proprietary
    		—$9.00
    DeepSeek R1 Distill Llama 70BOSS
    DeepSeek · Open Source
    		—$0.50
    DeepSeek R1 Distill Qwen 32BOSS
    DeepSeek · Open Source
    		—$0.30
    DeepSeek-R1OSS
    DeepSeek · Open Source
    		—$2.74
    DeepSeek-R1-0528OSS
    DeepSeek · Open Source
    		—$2.74
    DeepSeek-V2.5OSS
    DeepSeek · Open Source
    		—$0.42
    DeepSeek-V3OSS
    DeepSeek · Open Source
    		—$1.37
    DeepSeek-V3 0324OSS
    DeepSeek · Open Source
    		—$1.42
    DeepSeek-V3.1OSS
    DeepSeek · Open Source
    		—$1.27
    DeepSeek-V3.2OSS
    DeepSeek · Open Source · via OpenRouter
    		—$0.57
    DeepSeek-V3.2 (Non-thinking)OSS
    DeepSeek · Open Source
    		—$0.70
    DeepSeek-V3.2-ExpOSS
    DeepSeek · Open Source
    		—$0.68
    DeepSeek-V4-Flash-0423OSS
    DeepSeek · Open Source
    		—$0.30
    DeepSeek-V4-Flash-0731OSS
    DeepSeek · Open Source
    		—$1.76
    DeepSeek-V4-Flash-MaxOSS
    DeepSeek · Open Source
    		—$0.42
    DeepSeek-V4-Pro-0813OSS
    DeepSeek · Open Source
    		—$5.28
    DeepSeek-V4-Pro-MaxOSS
    DeepSeek · Open Source
    		—$5.22
    Devstral Medium
    Mistral · Proprietary · via Mistral AI
    		—$2.40
    Devstral Small 1.1OSS
    Mistral · Open Source · via Mistral AI
    		—$0.40
    ERNIE 4.5
    Baidu · Proprietary
    		—$4.40
    Gemini 1.0 Pro
    Google · Proprietary
    		—$2.00
    Showing 1–50 of 282 models

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    The index

    All Large Language Models

    282 models across 33 providers. Search or jump to a lab — every model page stays linked here.

    OpenAI51Anthropic22Google25Cursor2xAI15DeepSeek16MiniMax6Qwen38AI21 Labs2Amazon5Baidu1ByteDance2Cohere3IBM1Inception1inclusionAI1LG AI Research1Meituan4Meta12Microsoft5Mistral23Moonshot AI9Nous Research1NVIDIA5Poolside2Sakana AI1StepFun1Tencent1Thinking Machines1Unisound1Upstage1Xiaomi3Z AI20

    Baidu

    1 models
    ERNIE 4.5

    Inception

    1 models
    Mercury 2

    inclusionAI

    1 models
    Ling-3.0-flash

    LG AI Research

    1 models
    K-EXAONE-236B-A23B

    Nous Research

    1 models
    Hermes 3 70B

    Sakana AI

    1 models
    Sakana Namazu

    StepFun

    1 models
    Step-3.5-Flash

    Tencent

    1 models
    Hy3

    Thinking Machines

    1 models
    Inkling-Small

    Unisound

    1 models
    U2

    Upstage

    1 models
    Solar Pro 4

    Which model leads Arena Agent Elo right now?

    As of August 20, 2026, Claude Opus 5 by Anthropic is #1 for Arena Agent Elo at 12.20. Ranked by the Arena Agent Elo score This board also tracks Arena Agent Elo. Next on the same board: Claude Fable 5 and GPT-5.6 Sol. This arena agent elo leaderboard ranks models by Arena Agent Elo. Scores come from public evals. Prices are the live API rates in the table above.

    Sources: OpenAI API pricing (https://developers.openai.com/api/docs/pricing); Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing); Gemini API pricing (https://ai.google.dev/gemini-api/docs/pricing)

    Top 7 for arena agent elo. Ranked by the Arena Agent Elo score Input and output are dollars per million tokens.
    RankModelArena Agent EloInput /MOutput /M
    1Claude Opus 512.20$5.00$25.00
    2Claude Fable 512$10.00$50.00
    3GPT-5.6 Sol10.90$5.00$30.00
    4Kimi K310.60$3.00$15.00
    5Claude Opus 4.89.80$5.00$25.00
    6GPT-5.58.90$5.00$30.00
    7Claude Opus 4.78.20$5.00$25.00

    Related LLM leaderboards

    LLM LeaderboardCodingMathAgenticReasoningWritingScienceFinanceLong ContextVisionOpen Source

    Individual benchmark pages

    Rank one eval at a time. All LLM benchmarks.

    HLESWE BenchHumanity's Last Exam (No Tools)Humanity's Last Exam (With Tools)Terminal-Bench 2.0Terminal-BenchTerminal-Bench 2.1Terminal-Bench 2Terminal-Bench 3.0ARC-AGI-1 Verified

    Arena Agent Elo FAQ

    Who ranks #1 on the Arena Agent Elo leaderboard?

    As of August 20, 2026, Claude Opus 5 by Anthropic ranks #1 on Arena Agent Elo at 12.20. API pricing is $5.00/M input and $25.00/M output.

    What are the top models on Arena Agent Elo?

    The current Arena Agent Elo ranking as of August 20, 2026 is 1. Claude Opus 5 at 12.20; 2. Claude Fable 5 at 12; 3. GPT-5.6 Sol at 10.90.

    Which arena agent elo model is the cheapest?

    Kimi K3 is the cheapest scored model on this arena agent elo leaderboard at $3.00/M input and $15.00/M output ($18.00 blended). Claude Opus 5 still leads Arena Agent Elo at 12.20.

    Should I always pick the #1 Arena Agent Elo model?

    Not automatically. Claude Opus 5 leads Arena Agent Elo, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Arena Agent Elo against input/output price, context window, and related evals.

    How often is the Arena Agent Elo leaderboard updated?

    Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled August 20, 2026. Treat it as a current index, not a one-off blog post.

    What is Arena Agent Elo?

    Arena Agent Elo — blind pairwise preference rating from Arena.ai agent battles. This page ranks models that have published a Arena Agent Elo score, with live API token prices on the same row.

    Where is the Arena Agent Elo leaderboard?

    This page is the Arena Agent Elo leaderboard. Models are sorted by Arena Agent Elo, with input and output token prices on the same row so you can weigh score against cost. Official boards often omit price; that comparison is the point of this index.

    How is this Arena Agent Elo ranking different from the official board?

    Official eval pages own the methodology. This page keeps the published Arena Agent Elo score next to live API $/M so you can pick a production SKU, not only a trophy number.