AnotherWrapper
    $249
    LLMImageVideoSpeechTranscription

    GPQA Diamond

    🏆 Leaderboard

    As of August 20, 2026, Gemini 3.7 Flash is #1 for GPQA Diamond at 94.8%. Ranked by GPQA Diamond: graduate-level science questions written so Google cannot solve them. 126 models in this index have a published GPQA Diamond score. Methodology: GPQA Diamond (GitHub) (https://github.com/idavidrein/gpqa). GPQA Diamond leaderboard with live API prices. GPQA Diamond — the hardest subset of GPQA, containing only questions that experts with PhDs answered correctly. Official methodology: GPQA Diamond (GitHub) (https://github.com/idavidrein/gpqa).

    Updated August 20, 2026282 models33 providers
    Gemini 3.7 Flash
    Google · Proprietary
    		94.8%$4.50
    Claude Mythos 5
    Anthropic · Proprietary
    		94.6%$60.00
    Gemini 3.1 Pro
    Google · Proprietary
    		94.4%$17.50
    Kimi K3OSS
    Moonshot AI · Open Source
    		93.5%$18.00
    Grok 4.5
    xAI · Proprietary
    		93.4%$8.00
    Grok 4.6
    xAI · Proprietary
    		93.2%$8.00
    Claude Opus 5
    Anthropic · Proprietary
    		92.9%$30.00
    Qwen3.8 MaxOSS
    Qwen · Open Source
    		92.7%$8.00
    DeepSeek-V4-Pro-0813OSS
    DeepSeek · Open Source
    		92.4%$5.28
    Gemini 3 Pro
    Google · Proprietary
    		91.9%$14.00
    Muse Spark 1.1
    Meta · Proprietary
    		91.2%$5.50
    DeepSeek-V4-Flash-0731OSS
    DeepSeek · Open Source
    		91.0%$1.76
    Qwen3.7 Max
    Qwen · Proprietary
    		90.9%$5.00
    MiniMax M3OSS
    MiniMax · Open Source
    		90.9%$1.50
    Kimi K2.6OSS
    Moonshot AI · Open Source
    		90.8%$4.93
    GLM-5.1OSS
    Z AI · Open Source
    		89.9%$5.80
    DeepSeek-V4-Pro-MaxOSS
    DeepSeek · Open Source
    		89.7%$5.22
    GPT-5.4
    OpenAI · Proprietary
    		89.4%$17.50
    Gemini 3 Flash
    Google · Proprietary
    		89.4%$3.50
    Gemini 3.5 Flash
    Google · Proprietary
    		88.9%$10.50
    Grok 4.3
    xAI · Proprietary
    		88.8%$3.75
    Inkling-SmallOSS
    Thinking Machines · Open Source · via Thinking Machines Lab
    		88.5%$1.50
    Qwen3.6 Plus
    Qwen · Proprietary
    		88.4%$3.50
    Claude Opus 4.6
    Anthropic · Proprietary
    		88.4%$30.00
    GPT-5.4 mini
    OpenAI · Proprietary
    		88%$5.25
    Qwen3.7-Plus
    Qwen · Proprietary
    		87.9%$1.60
    Kimi K2.7 CodeOSS
    Moonshot AI · Open Source
    		87.9%$4.93
    GLM-5OSS
    Z AI · Open Source
    		87.8%$4.20
    GPT-5.3 Codex
    OpenAI · Proprietary
    		87.7%$15.75
    Grok-4
    xAI · Proprietary
    		87.5%$18.00
    MiniMax M2.7OSS
    MiniMax · Open Source
    		86.6%$1.50
    Gemini 2.5 Pro
    Google · Proprietary
    		86.4%$11.25
    Gemini 3.6 Flash
    Google · Proprietary
    		86.4%$4.50
    Claude Opus 4.7
    Anthropic · Proprietary
    		86.4%$30.00
    GPT-5
    OpenAI · Proprietary
    		86.2%$11.25
    Nemotron 3 Ultra (550B A55B)OSS
    NVIDIA · Open Source · via OpenRouter
    		86.1%$2.70
    Qwen3.6-27BOSS
    Qwen · Open Source
    		85.9%$4.20
    Qwen3.5-397B-A17BOSS
    Qwen · Open Source
    		85.9%$4.20
    Claude Fable 5
    Anthropic · Proprietary
    		85.9%$60.00
    Claude Opus 4.5
    Anthropic · Proprietary
    		85.5%$30.00
    Grok-4 Fast Reasoning
    xAI · Proprietary
    		85.3%$0.70
    Claude Opus 4.8
    Anthropic · Proprietary
    		85.3%$30.00
    Gemini 2.5 Pro Preview 06-05
    Google · Proprietary
    		84.8%$11.25
    Grok-3
    xAI · Proprietary
    		84.6%$18.00
    Grok-4.1 Fast Reasoning
    xAI · Proprietary
    		84.3%$0.70
    Qwen3.6-35B-A3BOSS
    Qwen · Open Source · via OpenRouter
    		83.8%$1.14
    GLM-4.7OSS
    Z AI · Open Source
    		83.3%$2.80
    GPT-5.6 Sol
    OpenAI · Proprietary
    		82.8%$35.00
    GPT-5.4 nano
    OpenAI · Proprietary
    		82.8%$1.45
    MiMo-V2.5-ProOSS
    Xiaomi · Open Source
    		82.6%$1.30
    Showing 1–50 of 282 models

    Next step

    You found the model. Now ship the product.

    Auth, billing, and the API layer are already decided. Fork 8 finished AI apps, or have us build the first version with you.

    Get the stack — $249Have us build it with you

    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 GPQA Diamond right now?

    As of August 20, 2026, Gemini 3.7 Flash by Google is #1 for GPQA Diamond at 94.8%. Ranked by GPQA Diamond: graduate-level science questions written so Google cannot solve them. This board also tracks GPQA Diamond. Next on the same board: Claude Mythos 5 and Gemini 3.1 Pro. This gpqa diamond leaderboard ranks models by GPQA Diamond. Scores come from public evals. Prices are the live API rates in the table above.

    Sources: GPQA Diamond (GitHub) (https://github.com/idavidrein/gpqa); 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 gpqa diamond. Ranked by GPQA Diamond: graduate-level science questions written so Google cannot solve them. Input and output are dollars per million tokens.
    RankModelGPQA DiamondInput /MOutput /M
    1Gemini 3.7 Flash94.8%$0.75$3.75
    2Claude Mythos 594.6%$10.00$50.00
    3Gemini 3.1 Pro94.4%$2.50$15.00
    4Kimi K393.5%$3.00$15.00
    5Grok 4.593.4%$2.00$6.00
    6Grok 4.693.2%$2.00$6.00
    7Claude Opus 592.9%$5.00$25.00
    8Qwen3.8 Max92.7%$2.00$6.00

    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

    GPQA Diamond FAQ

    Who ranks #1 on the GPQA Diamond leaderboard?

    As of August 20, 2026, Gemini 3.7 Flash by Google ranks #1 on GPQA Diamond at 94.8%. API pricing is $0.75/M input and $3.75/M output.

    What are the top models on GPQA Diamond?

    The current GPQA Diamond ranking as of August 20, 2026 is 1. Gemini 3.7 Flash at 94.8%; 2. Claude Mythos 5 at 94.6%; 3. Gemini 3.1 Pro at 94.4%.

    Which gpqa diamond model is the cheapest?

    Llama 3.1 8B Instruct is the cheapest scored model on this gpqa diamond leaderboard at $0.03/M input and $0.03/M output ($0.06 blended). Gemini 3.7 Flash still leads GPQA Diamond at 94.8%.

    Should I always pick the #1 GPQA Diamond model?

    Not automatically. Gemini 3.7 Flash leads GPQA Diamond, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh GPQA Diamond against input/output price, context window, and related evals.

    How often is the GPQA Diamond 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 GPQA Diamond?

    GPQA Diamond — the hardest subset of GPQA, containing only questions that experts with PhDs answered correctly. This page ranks models that have published a GPQA Diamond score, with live API token prices on the same row. Official methodology: GPQA Diamond (GitHub) (https://github.com/idavidrein/gpqa).

    Where is the GPQA Diamond leaderboard?

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

    The official GPQA Diamond (GitHub) page owns the methodology. This page keeps the published GPQA Diamond score next to live API $/M so you can pick a production SKU, not only a trophy number. Source: https://github.com/idavidrein/gpqa