Language

Trinity Large Thinking

By Arcee AI, in the Trinity family.

Released
1 Apr 2026
Status
Current
Context
262.1K
Max output
—
Input per 1M tokens
$0.25
Output per 1M tokens
$0.80
Open weights
Yes
License
—
Parameters
398.6B
Knowledge cutoff
—
Reasoning
Yes
Modalities
text → text

Category scores

Out of 100, from independent and third-party results only, by method category-2026-09-29.1.

Category scores
CategoryScoreRankCoverage
Human preference36.8Not ranked2 of 5

Benchmark results

Every result we hold for this model, with who ran it and where it was published.

Scientific reasoning

Scientific reasoning results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
Surface Evolver BenchMean score (partial credit)15.6%Third party——https://yhenon.github.io/surface-evolver-llm-eval/ via Epoch AI

Human preference

Human preference results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
Code Arena: WebDev (arena.ai)Arena score (Elo scale)1238Independentthinking25 Sep 2026Arena
Code Arena: WebDev (arena.ai)Votes1362Independentthinking25 Sep 2026Arena
Text Arena (arena.ai)Arena score (Elo scale)1368Independentthinking25 Sep 2026Arena
Text Arena (arena.ai)Votes30277Independentthinking25 Sep 2026Arena

Other Trinity versions

Sources