Trinity-Large-Thinking

Open Source

400B

Parameters

Benchmarks

About Trinity-Large-Thinking

Trinity-Large-Thinking is an AI model developed by Arcee AI, released in 2026, made available as an open-source model with 400B params. Trinity-Large-Thinking is Arcee AI's 400B open reasoning agent — a thinking-mode variant of Trinity-Large-Preview, post-.

On this page you'll find Trinity-Large-Thinking's full specifications, including 4 benchmark results. Review provider pricing and benchmark scores below, or compare Trinity-Large-Thinking head-to-head with other AI models.

→ More models by Arcee AI → AI benchmarks leaderboard

Links

Announcement ↗ Paper ↗ Hugging Face ↗

Community

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Trinity-Large-Thinking benchmark scores▶

Compare on the benchmark table →

Benchmark	Category	Score
SWE-bench Verified	code	76.5%
MMLU-Pro	general	80.7%
AIME 2025	math	83.1%
GPQA Diamond	reasoning	79.4%

More models like Trinity-Large-Thinking

Trinity-Large-Preview

Arcee AI · 400B

Frequently asked questions

What is Trinity-Large-Thinking? ▶

Trinity-Large-Thinking is Arcee AI's 400B open reasoning agent — a thinking-mode variant of Trinity-Large-Preview, post- It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created Trinity-Large-Thinking? ▶

Trinity-Large-Thinking was developed by Arcee AI and released in 2026.

Is Trinity-Large-Thinking open source or proprietary? ▶

Trinity-Large-Thinking is released as open source — its weights are publicly available to download, run locally and fine-tune.

How much does Trinity-Large-Thinking cost? ▶

Pricing for Trinity-Large-Thinking depends on the provider. See the providers table on this page for the latest API rates.

How does Trinity-Large-Thinking perform on benchmarks? ▶

Trinity-Large-Thinking is benchmarked across 4 evaluations on GenAIList, including SWE-bench Verified (76.5%). See the full benchmark table below and compare it with other models.