Claude 2.1

deprecated by benchmark source

Anthropic · released 2023-11-21 · 0 offers

Context 200K tokens

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3 of 7 inputs · 1 from the model family6 radar axes: DesignArena's two boards share one

5.6

AA Coding 14.0Coding Agent v1.4 —AA Intelligence 5.6AA Agentic —Epoch ECI 119.2Software ECI —DesignArena —/—

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

3 of 140 registered benchmark versions · bars show the percentile among all models measured on each benchmark.

Composite attachments (used in the score, not counted as exact benchmarks):

AA Coding Index1414.02026-09-19
AA Coding Index published 2026-09-19 ↗ · Published board — Artificial Analysis publishes this board without a version number; we keep the date each result was retained.

Humanity's Last Exam (AA text-only)123.9%2026-09-10
Humanity's Last Exam (AA text-only) published 2026-09-10 ↗ · Published board — Tests expert-level knowledge on AA's text-only Humanity's Last Exam subset.

AA Intelligence Index115.602026-09-19
AA Intelligence Index published 2026-09-19 ↗ · Published board — Artificial Analysis publishes this board without a version number; we keep the date each result was retained.

GPQA Diamond (AA)831.9%2026-09-10
GPQA Diamond (AA) published 2026-09-10 ↗ · Published board — Tests graduate-level biology, physics and chemistry knowledge on the Diamond subset.
GPQA Diamond (Epoch AI run)833.0%2026-09-18
GPQA Diamond (Epoch AI run) published 2026-09-18 ↗ · Published board — Epoch AI's own inspect-ai runs of GPQA Diamond, the 198-question graduate-level science multiple-choice set.

Missing coverage · 140 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.

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