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    APEX-Agents

    🏆 Leaderboard

    As of August 20, 2026, Grok 4.6 is #1 for APEX-Agents at 57.5%. Ranked by the APEX-Agents score 50 models in this index have a published APEX-Agents score. APEX-Agents leaderboard with live API prices. APEX-Agents — agent execution benchmark across professional workflows.

    Updated August 20, 2026282 models33 providers
    Grok 4.6
    xAI · Proprietary
    		57.5%$8.00
    Claude Fable 5
    Anthropic · Proprietary
    		45%$60.00
    Claude Opus 5
    Anthropic · Proprietary
    		43.5%$30.00
    Claude Opus 4.8
    Anthropic · Proprietary
    		42.5%$30.00
    Muse Spark 1.1
    Meta · Proprietary
    		41.9%$5.50
    GPT-5.6 Sol
    OpenAI · Proprietary
    		39.9%$35.00
    GPT-5.5
    OpenAI · Proprietary
    		38.5%$35.00
    Kimi K3OSS
    Moonshot AI · Open Source
    		37.6%$18.00
    GPT-5.4
    OpenAI · Proprietary
    		36%$17.50
    GLM-5.2OSS
    Z AI · Open Source
    		35.6%$5.80
    GPT-5.2
    OpenAI · Proprietary
    		34.4%$15.75
    Grok 4.5
    xAI · Proprietary
    		34.2%$8.00
    Claude Opus 4.7
    Anthropic · Proprietary
    		33.9%$30.00
    Gemini 3.1 Pro
    Google · Proprietary
    		33.5%$17.50
    Claude Sonnet 5
    Anthropic · Proprietary
    		32.5%$12.00
    Claude Opus 4.6
    Anthropic · Proprietary
    		32.4%$30.00
    GPT-5.3 Codex
    OpenAI · Proprietary
    		31.8%$15.75
    Gemini 3 Pro
    Google · Proprietary
    		31.5%$14.00
    Seed 2.1 Turbo
    ByteDance · Proprietary
    		29.2%$3.00
    Kimi K2.6OSS
    Moonshot AI · Open Source
    		27.9%$4.93
    MiniMax M3OSS
    MiniMax · Open Source
    		27.7%$1.50
    Kimi K2.7 CodeOSS
    Moonshot AI · Open Source
    		27.6%$4.93
    GPT-5.2 Codex
    OpenAI · Proprietary
    		27.6%$15.75
    Hy3OSS
    Tencent · Open Source
    		25.6%$0.66
    GPT-5.4 mini
    OpenAI · Proprietary
    		24.6%$5.25
    Gemini 3 Flash
    Google · Proprietary
    		24%$3.50
    Claude Sonnet 4.6
    Anthropic · Proprietary
    		23.7%$18.00
    GPT-5.1 Codex
    OpenAI · Proprietary
    		20.7%$11.25
    Claude Opus 4.5
    Anthropic · Proprietary
    		20.7%$30.00
    GPT-5 Codex
    OpenAI · Proprietary
    		20.1%$11.25
    GPT-5
    OpenAI · Proprietary
    		18.3%$11.25
    GPT-5.1
    OpenAI · Proprietary
    		17.5%$11.25
    o3
    OpenAI · Proprietary
    		17.2%$10.00
    GLM-5OSS
    Z AI · Open Source
    		17.2%$4.20
    GPT-5.4 nano
    OpenAI · Proprietary
    		16.9%$1.45
    Grok-4
    xAI · Proprietary
    		15.2%$18.00
    Kimi K2.5OSS
    Moonshot AI · Open Source
    		14.4%$3.68
    Gemini 3.1 Flash-Lite
    Google · Proprietary
    		13%$1.75
    Grok-4.1
    xAI · Proprietary
    		12.8%$18.00
    Claude Sonnet 4
    Anthropic · Proprietary
    		9.3%$18.00
    Claude Haiku 4.5
    Anthropic · Proprietary
    		8.9%$6.00
    GLM-4.7OSS
    Z AI · Open Source
    		8.7%$2.80
    DeepSeek-V3.2OSS
    DeepSeek · Open Source · via OpenRouter
    		7%$0.57
    Gemini 2.5 Pro
    Google · Proprietary
    		6.6%$11.25
    MiniMax M2.5OSS
    MiniMax · Open Source
    		6.2%$1.50
    GPT OSS 120BOSS
    OpenAI · Open Source
    		4.7%$0.54
    GLM-4.6OSS
    Z AI · Open Source
    		4%$2.80
    Grok-3
    xAI · Proprietary
    		2.1%$18.00
    Gemini 2.5 Flash
    Google · Proprietary
    		1.8%$2.80
    o1
    OpenAI · Proprietary
    		1.1%$75.00
    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 APEX-Agents right now?

    As of August 20, 2026, Grok 4.6 by xAI is #1 for APEX-Agents at 57.5%. Ranked by the APEX-Agents score This board also tracks APEX-Agents. Next on the same board: Claude Fable 5 and Claude Opus 5. This apex-agents leaderboard ranks models by APEX-Agents. 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 apex-agents. Ranked by the APEX-Agents score Input and output are dollars per million tokens.
    RankModelAPEX-AgentsInput /MOutput /M
    1Grok 4.657.5%$2.00$6.00
    2Claude Fable 545%$10.00$50.00
    3Claude Opus 543.5%$5.00$25.00
    4Claude Opus 4.842.5%$5.00$25.00
    5Muse Spark 1.141.9%$1.25$4.25
    6GPT-5.6 Sol39.9%$5.00$30.00
    7GPT-5.538.5%$5.00$30.00
    8Kimi K337.6%$3.00$15.00

    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

    APEX-Agents FAQ

    Who ranks #1 on the APEX-Agents leaderboard?

    As of August 20, 2026, Grok 4.6 by xAI ranks #1 on APEX-Agents at 57.5%. API pricing is $2.00/M input and $6.00/M output.

    What are the top models on APEX-Agents?

    The current APEX-Agents ranking as of August 20, 2026 is 1. Grok 4.6 at 57.5%; 2. Claude Fable 5 at 45%; 3. Claude Opus 5 at 43.5%.

    Which apex-agents model is the cheapest?

    GPT OSS 120B is the cheapest scored model on this apex-agents leaderboard at $0.09/M input and $0.45/M output ($0.54 blended). Grok 4.6 still leads APEX-Agents at 57.5%.

    Should I always pick the #1 APEX-Agents model?

    Not automatically. Grok 4.6 leads APEX-Agents, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh APEX-Agents against input/output price, context window, and related evals.

    How often is the APEX-Agents 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 APEX-Agents?

    APEX-Agents — agent execution benchmark across professional workflows. This page ranks models that have published a APEX-Agents score, with live API token prices on the same row.

    Where is the APEX-Agents leaderboard?

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

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