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Jamba 1.7 Large

open weights
AI21 Labs · released 2025-07-07 · 0 offers

Context 256K tokens

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Composite

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

3.2

dominance-adjusted from 5.6: a better-measured model that is at least as good on each of these inputs ranks above it

AA CodingCoding Agent v1.4AA IntelligenceAA AgenticEpoch ECISoftware ECIDesignArenaAA Intelligence: percentile 16

AA Coding Coding Agent v1.4 AA Intelligence 6.1AA Agentic Epoch ECI Software ECI DesignArena —/—

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

Benchmark sheet

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

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Agentic

Instruction-following

Knowledge

Long-context

  • AA-LCR v1.12319.3%

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

Math

  • AIME 2025 (AA) v202542.3%

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

Reasoning

Science

Tool-use

Uncensored

  • UGI Willingness977.20

    UGI Willingness published 2026-09-10 · Published board — A private-question evaluation of how far a model follows challenging instructions before refusing or deviating.

  • UGI9252.2

    UGI published 2026-09-10 · Published board — A private-question suite combining sensitive-topic knowledge with willingness to follow controversial instructions.

Writing

  • UGI Writing7638.0

    UGI Writing published 2026-09-10 · Published board — A maintainer-owned writing evaluation considering intelligence, style, repetition and length adherence, informed by human preferences.

Unusual results

2 threshold-crossing signals flagged · 14 eligible benchmark families

How flags are calculated

Heuristic screen, not statistical significance: benchmark families are correlated and source uncertainty is unknown. Peer evidence needs ≥ 20 independently measured matched configurations from ≥ 10 distinct model families. A flag needs a directed population z-score of magnitude ≥ 1.5 and a gap of ≥ 1.5 from the leave-one-benchmark-family-out mean z in the same direction, over ≥ 5 other benchmark families.

Missing coverage · 131 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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Jamba 1.7 Large — benchmarks & cost | Benchmark Heaven