Arcee Trinity-Large-Thinking: 400B Open Reasoning Agent at $0.90/M Tokens (2026)

Arcee AI's Trinity-Large-Thinking is a 398B sparse MoE model scoring 91.9% on PinchBench — 1.4 points below Claude Opus 4.6 — at $0.90 per million output tokens under Apache 2.0. This guide covers the architecture, benchmarks, vLLM deployment on H200, and when it replaces proprietary frontier models.

Continue reading the full article on WowHow →

Originally published at https://wowhow.cloud/blogs/arcee-trinity-large-thinking-400b-open-source-reasoning-agent-guide-2026

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