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Llama 3.1 Instruct 405B

open weights
Meta · released 2024-07-23 · 0 offers

Context 128K tokens

Providers

No provider publishes an API price for this model yet, so no cost can be modeled.

Composite

1 of 7 inputs6 radar axes: DesignArena's two boards share one

4.9

 Thin data · 1/7Based on only 1 of 7 Composite inputs — treat this rank as uncertain

dominance-adjusted from 6.5: a better-measured model that is at least as good on each of these inputs ranks above it

AA Coding v4.xCoding Agent v1.4AA Intelligence (est.)AA AgenticEpoch ECISoftware ECIDesignArenaAA Intelligence (est.): percentile 25

AA Coding v4.x —Coding Agent v1.4 —AA Intelligence (est.) 3.1AA Agentic —Epoch ECI —Software ECI —DesignArena —/—

Radar: percentile among all models measured on each input; a gap means not measured.

Benchmark sheet

11 of 319 registered benchmark versions · bars show the percentile among all models measured on each benchmark.

Compare this model →

Agentic

Instruction-following

  • IFBench (AA single-turn)3639.0%

    IFBench (AA single-turn) published 2026-09-10 → · Published board — Tests precise single-turn instructions with deterministic rule checks.

  • LisanBench word chains, v0.2.0 (Lisan al Gaib)41200.0

    LisanBench word chains, v0.2.0 (Lisan al Gaib) v0.2.0 → · Published board — A model builds the longest chain of English words it can, each differing from the last by one letter, with no repeats and only dictionary words, from 50 starting words; any broken rule ends the chain.

Knowledge

Long-context

  • AA-LCR v1.12825.3%

    AA-LCR v1.1 v1.1 → · Published board — Tests reasoning across multiple long documents with corrected answer keys and grading.

Math

  • AIME 2025 (AA)43.0%

    AIME 2025 (AA) v2025 → · Published board — Advanced mathematical problem solving on AIME I and II 2025.

Science

Tool-use

Writing

  • EQ-Bench Creative Writing v321868 Elo

    EQ-Bench Creative Writing v3 v3 → · Published board — A LLM-judged creative writing benchmark with vocabulary and GPT-slop controls.

Missing coverage · 308 benchmark versions

No result does not mean a zero, or that the model was never tested. Collection failures and disputed versions retain their distinct status.

Llama 3.1 Instruct 405B — benchmarks & cost