FrontierCode 1.1

    🏆 Leaderboard

    As of September 2, 2026, Claude Fable 5 is #1 for FrontierCode 1.1 at 53.5%. Ranked by the FrontierCode 1.1 score 18 models in this index have a published FrontierCode 1.1 score. FrontierCode 1.1 leaderboard: rank models by FrontierCode 1.1 next to live API token prices.

    Updated September 2, 2026347 models36 providers

    FrontierCode 1.1 vs price

    18 models. Left is cheaper. Up is a higher score. The line is the best score you can buy at each price — a dot under it is a worse deal than something on the line.

    Best score at each price#1 on this board
    Claude Fable 5
    Anthropic · Proprietary
    53.5%$60.00
    Claude Opus 5
    Anthropic · Proprietary
    53.4%$30.00
    Claude Mythos 5.1
    Anthropic · Proprietary
    50.9%$60.00
    Claude Fable 5.1
    Anthropic · Proprietary
    50.9%$60.00
    GPT-5.6 Sol
    OpenAI · Proprietary
    47.5%$35.00
    Claude Opus 4.8
    Anthropic · Proprietary
    46.5%$30.00
    Gemini 3.7 Flash
    Google · Proprietary
    43.6%$4.50
    GPT-5.5
    OpenAI · Proprietary
    43%$35.00
    Claude Sonnet 5
    Anthropic · Proprietary
    42.7%$12.00
    Grok 4.5
    xAI · Proprietary
    42.4%$8.00
    GPT-5.6 Terra
    OpenAI · Proprietary
    41.3%$14.00
    GPT-5.6 Luna
    OpenAI · Proprietary
    39.8%$1.40
    Claude Opus 4.7
    Anthropic · Proprietary
    38.5%$30.00
    Kimi K2.7 CodeOSS
    Moonshot AI · Open Source
    30.1%$4.93
    GLM-5.2OSS
    Z AI · Open Source
    24.5%$5.80
    DeepSeek-V4-Pro-MaxOSS
    DeepSeek · Open Source
    17.6%$5.22
    MiniMax M3OSS
    MiniMax · Open Source
    14.7%$1.50
    Qwen3.7-Plus
    Qwen · Proprietary
    10.2%$1.60
    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
    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
    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 FrontierCode 1.1 right now?

    As of September 2, 2026, Claude Fable 5 by Anthropic is #1 for FrontierCode 1.1 at 53.5%. Ranked by the FrontierCode 1.1 score This board also tracks FrontierCode 1.1. Next on the same board: Claude Opus 5 and Claude Fable 5.1. This frontiercode 1.1 leaderboard ranks models by FrontierCode 1.1. 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 8 for frontiercode 1.1. Ranked by the FrontierCode 1.1 score Input and output are dollars per million tokens.
    RankModelFrontierCode 1.1Input /MOutput /M
    1Claude Fable 553.5%$10.00$50.00
    2Claude Opus 553.4%$5.00$25.00
    3Claude Fable 5.150.9%$10.00$50.00
    4Claude Mythos 5.150.9%$10.00$50.00
    5GPT-5.6 Sol47.5%$5.00$30.00
    6Claude Opus 4.846.5%$5.00$25.00
    7Gemini 3.7 Flash43.6%$0.75$3.75
    8GPT-5.543%$5.00$30.00

    FrontierCode 1.1 FAQ

    Who ranks #1 on the FrontierCode 1.1 leaderboard?

    As of September 2, 2026, Claude Fable 5 by Anthropic ranks #1 on FrontierCode 1.1 at 53.5%. API pricing is $10.00/M input and $50.00/M output.

    What are the top models on FrontierCode 1.1?

    The current FrontierCode 1.1 ranking as of September 2, 2026 is 1. Claude Fable 5 at 53.5%; 2. Claude Opus 5 at 53.4%; 3. Claude Fable 5.1 at 50.9%.

    Which frontiercode 1.1 model is the cheapest?

    GPT-5.6 Luna is the cheapest scored model on this frontiercode 1.1 leaderboard at $0.20/M input and $1.20/M output ($1.40 blended). Claude Fable 5 still leads FrontierCode 1.1 at 53.5%.

    Should I always pick the #1 FrontierCode 1.1 model?

    Not automatically. Claude Fable 5 leads FrontierCode 1.1, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh FrontierCode 1.1 against input/output price, context window, and related evals.

    How often is the FrontierCode 1.1 leaderboard updated?

    Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled September 2, 2026. Treat it as a current index, not a one-off blog post.

    What is FrontierCode 1.1?

    FrontierCode 1.1 is a public LLM eval (the FrontierCode 1.1 score). This page ranks models that have published a score, next to live API prices.

    Where is the FrontierCode 1.1 leaderboard?

    This page is the FrontierCode 1.1 leaderboard. Models are sorted by FrontierCode 1.1, 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 FrontierCode 1.1 ranking different from the official board?

    Official eval pages own the methodology. This page keeps the published FrontierCode 1.1 score next to live API $/M so you can pick a production SKU, not only a trophy number.