Trinity Large Thinking

arcee-ai/trinity-large-thinking

Trinity Large Thinking is a powerful open source reasoning model from the team at Arcee AI. It shows strong performance in PinchBench, agentic workloads, and reasoning tasks. Launch video: https://youtu.be/Gc82AXLa0Rg?si=4RLn6WBz33qT--B7...

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Context window: 262K
Input: Text
Output: Text
Released: 2026-04-01

Max output: 262K
Model parameters: 399B
Weights: Open
License: openmdw-1.1
Capabilities: Open weight, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

41.7/100

Coding: 39.8
Reasoning: 41.2
Professional work: 32.5
Knowledge & language: 35.8


Humanity’s Last ExamTrinity Large Thinking	Reasoning	Artificial Analysis	2026-11-05
IFBench（Artificial Analysis）Trinity Large Thinking	Knowledge & language	Artificial Analysis	2026-11-05
SciCodeTrinity Large Thinking	Coding	Artificial Analysis	2026-11-05
BullshitBench v2	Knowledge & language	BullshitBench	2026-11-05
Terminal-Bench 4.0 (AA rerun)Trinity Large Thinking	Coding	Artificial Analysis	2026-11-05
CritPtTrinity Large Thinking	Reasoning	Artificial Analysis	2026-11-05
GDPval-AA	Professional work	Artificial Analysis	2026-11-05
AA-Briefcase	Professional work	Artificial Analysis	2026-11-05

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ModelRegistry · Catalog updated 2026-11-05