ProgramBench

    🏆 Leaderboard

    As of September 1, 2026, Claude Fable 5.1 is #1 for ProgramBench at 87.6%. Ranked by the ProgramBench score 2 models in this index have a published ProgramBench score. ProgramBench leaderboard with live API prices. ProgramBench — rebuild a program from its binary and docs across a 1M-token window.

    Updated September 1, 2026347 models36 providers
    Claude Mythos 5.1
    Anthropic · Proprietary
    87.6%$60.00
    Claude Fable 5.1
    Anthropic · Proprietary
    87.6%$60.00
    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 Fable 5
    Anthropic · Proprietary
    $60.00
    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 Opus 4.7
    Anthropic · Proprietary
    $30.00
    Claude Opus 4.8
    Anthropic · Proprietary
    $30.00
    Claude Opus 5
    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
    Codestral-22BOSS
    Mistral · Open Source · via Mistral AI
    $1.20
    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 VL2OSS
    DeepSeek · Open Source · via Replicate
    $2.80
    DeepSeek VL2 SmallOSS
    DeepSeek · Open Source · via Replicate
    $1.70
    DeepSeek VL2 TinyOSS
    DeepSeek · Open Source · via Replicate
    $0.90
    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-Flash-Vision-Exp
    DeepSeek · Proprietary
    $0.88
    DeepSeek-V4-Pro-0813OSS
    DeepSeek · Open Source
    $5.28
    DeepSeek-V4-Pro-MaxOSS
    DeepSeek · Open Source
    $5.22
    Showing 150 of 347 models

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    The index

    All Large Language Models

    347 models across 36 providers. Search or jump to a lab — every model page stays linked here.

    Baidu

    2 models

    Inception

    1 models

    inclusionAI

    1 models

    LG AI Research

    1 models

    Liquid AI

    2 models

    Nous Research

    1 models

    OpenBMB

    1 models

    Sakana AI

    1 models

    Sarvam AI

    2 models

    Tencent

    1 models

    Thinking Machines

    1 models

    Unisound

    1 models

    Upstage

    1 models

    Which model leads ProgramBench right now?

    As of September 1, 2026, Claude Fable 5.1 by Anthropic is #1 for ProgramBench at 87.6%. Ranked by the ProgramBench score This board also tracks ProgramBench. Next on the same board: Claude Mythos 5.1. This programbench leaderboard ranks models by ProgramBench. 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 2 for programbench. Ranked by the ProgramBench score Input and output are dollars per million tokens.
    RankModelProgramBenchInput /MOutput /M
    1Claude Fable 5.187.6%$10.00$50.00
    2Claude Mythos 5.187.6%$10.00$50.00

    ProgramBench FAQ

    Who ranks #1 on the ProgramBench leaderboard?

    As of September 1, 2026, Claude Fable 5.1 by Anthropic ranks #1 on ProgramBench at 87.6%. API pricing is $10.00/M input and $50.00/M output.

    What are the top models on ProgramBench?

    The current ProgramBench ranking as of September 1, 2026 is 1. Claude Fable 5.1 at 87.6%; 2. Claude Mythos 5.1 at 87.6%.

    Which programbench model is the cheapest?

    Claude Fable 5.1 currently leads ProgramBench and is also the cheapest scored model on this page, at $10.00/M input and $50.00/M output ($60.00 blended).

    Should I always pick the #1 ProgramBench model?

    Not automatically. Claude Fable 5.1 leads ProgramBench, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh ProgramBench against input/output price, context window, and related evals.

    How often is the ProgramBench leaderboard updated?

    Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled September 1, 2026. Treat it as a current index, not a one-off blog post.

    What is ProgramBench?

    ProgramBench — rebuild a program from its binary and docs across a 1M-token window. This page ranks models that have published a ProgramBench score, with live API token prices on the same row.

    Where is the ProgramBench leaderboard?

    This page is the ProgramBench leaderboard. Models are sorted by ProgramBench, 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 ProgramBench ranking different from the official board?

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