Trinity Large Thinking: Now available on OpenRouter.
Arcee AI: A US-based Open Intelligence Lab
Three frontier models in six months. All open-weight.
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Three releases in six months. Open weights, real benchmarks, no vaporware.
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Online RL means continuous learning. Deploy once, improve continuously with rapid iteration.
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Latest Blogs
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Company
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April 14, 2026
Introducing the Trinity Builders Program
A community credit grant for developers, researchers, and open source builders working with Trinity models. Apply for free inference access on the Arcee API.](/content/blog/introducing-the-trinity-builders-program/index.html)
Agentic AI
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April 3, 2026
How to Use Hermes Agent with Trinity Large Thinking
Learn how to set up Hermes Agent powered by Trinity-Large-Thinking. This guide covers installation, tool configuration, and launching your AI assistant.](/content/blog/how-to-use-hermes-agent-with-trinity-large-thinking/index.html)
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News
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April 1, 2026
Trinity-Large-Thinking: Scaling an Open Source Frontier Agent
Trinity-Large-Thinking is live. A frontier open reasoning model for complex, long-horizon agents and multi-turn tool calling released under Apache 2.0.](/content/blog/trinity-large-thinking/index.html)