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    Humanity's Last Exam (No Tools)

    🏆 Leaderboard

    As of August 20, 2026, Claude Mythos 5 is #1 for Humanity's Last Exam (No Tools) at 59%. Ranked by the Humanity's Last Exam (No Tools) score 5 models in this index have a published Humanity's Last Exam (No Tools) score. Methodology: Humanity's Last Exam (https://agi.safe.ai/). Humanity's Last Exam (No Tools) leaderboard with live API prices. HLE (No Tools) — Humanity's Last Exam without external tool access. Official methodology: Humanity's Last Exam (https://agi.safe.ai/).

    Updated August 20, 2026282 models33 providers
    Claude Mythos 5
    Anthropic · Proprietary
    		59%$60.00
    GPT-5.4
    OpenAI · Proprietary
    		37%$17.50
    GPT-5.3 Codex
    OpenAI · Proprietary
    		34.8%$15.75
    GPT-5.4 mini
    OpenAI · Proprietary
    		28.2%$5.25
    GPT-5.4 nano
    OpenAI · Proprietary
    		24.3%$1.45
    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 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
    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
    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 Humanity's Last Exam (No Tools) right now?

    As of August 20, 2026, Claude Mythos 5 by Anthropic is #1 for Humanity's Last Exam (No Tools) at 59%. Ranked by the Humanity's Last Exam (No Tools) score This board also tracks Humanity's Last Exam (No Tools). Next on the same board: GPT-5.4 and GPT-5.3 Codex. This humanity's last exam (no tools) leaderboard ranks models by Humanity's Last Exam (No Tools). Scores come from public evals. Prices are the live API rates in the table above.

    Sources: Humanity's Last Exam (https://agi.safe.ai/); 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 5 for humanity's last exam (no tools). Ranked by the Humanity's Last Exam (No Tools) score Input and output are dollars per million tokens.
    RankModelHumanity's Last Exam (No Tools)Input /MOutput /M
    1Claude Mythos 559%$10.00$50.00
    2GPT-5.437%$2.50$15.00
    3GPT-5.3 Codex34.8%$1.75$14.00
    4GPT-5.4 mini28.2%$0.75$4.50
    5GPT-5.4 nano24.3%$0.20$1.25

    Related LLM leaderboards

    LLM LeaderboardCodingMathAgenticReasoningWritingScienceFinanceLong ContextVisionOpen Source

    Individual benchmark pages

    Rank one eval at a time. All LLM benchmarks.

    HLESWE BenchHumanity's Last Exam (With Tools)Terminal-Bench 2.0Terminal-BenchTerminal-Bench 2.1Terminal-Bench 2Terminal-Bench 3.0ARC-AGI-1 VerifiedChatbot Arena

    Humanity's Last Exam (No Tools) FAQ

    Who ranks #1 on the Humanity's Last Exam (No Tools) leaderboard?

    As of August 20, 2026, Claude Mythos 5 by Anthropic ranks #1 on Humanity's Last Exam (No Tools) at 59%. API pricing is $10.00/M input and $50.00/M output.

    What are the top models on Humanity's Last Exam (No Tools)?

    The current Humanity's Last Exam (No Tools) ranking as of August 20, 2026 is 1. Claude Mythos 5 at 59%; 2. GPT-5.4 at 37%; 3. GPT-5.3 Codex at 34.8%.

    Which humanity's last exam (no tools) model is the cheapest?

    GPT-5.4 nano is the cheapest scored model on this humanity's last exam (no tools) leaderboard at $0.20/M input and $1.25/M output ($1.45 blended). Claude Mythos 5 still leads Humanity's Last Exam (No Tools) at 59%.

    Should I always pick the #1 Humanity's Last Exam (No Tools) model?

    Not automatically. Claude Mythos 5 leads Humanity's Last Exam (No Tools), but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Humanity's Last Exam (No Tools) against input/output price, context window, and related evals.

    How often is the Humanity's Last Exam (No Tools) 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 Humanity's Last Exam (No Tools)?

    HLE (No Tools) — Humanity's Last Exam without external tool access. This page ranks models that have published a Humanity's Last Exam (No Tools) score, with live API token prices on the same row. Official methodology: Humanity's Last Exam (https://agi.safe.ai/).

    Where is the Humanity's Last Exam (No Tools) leaderboard?

    This page is the Humanity's Last Exam (No Tools) leaderboard. Models are sorted by Humanity's Last Exam (No Tools), 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 Humanity's Last Exam (No Tools) ranking different from the official board?

    The official Humanity's Last Exam page owns the methodology. This page keeps the published Humanity's Last Exam (No Tools) score next to live API $/M so you can pick a production SKU, not only a trophy number. Source: https://agi.safe.ai/