Audience
Developers and enterprises building autonomous AI agents that need a high-performance, open-source reasoning model for complex, multi-step workflows
About Trinity-Large-Thinking
Trinity Large Thinking is a frontier open source reasoning model developed by Arcee AI, designed specifically for complex, multi-step problem solving and autonomous agent workflows that require long-horizon planning and tool use. Built on a sparse Mixture-of-Experts architecture with roughly 400 billion total parameters but only about 13 billion active per token, the model achieves high efficiency while maintaining strong reasoning performance across tasks such as mathematical problem solving, code generation, and multi-step analysis. It introduces extended chain-of-thought reasoning capabilities, allowing the model to generate intermediate “thinking traces” before producing final answers, which improves accuracy and reliability in complex scenarios. Trinity Large Thinking supports a very large context window of up to 262K tokens, enabling it to process long documents, maintain state across extended interactions, and operate effectively in continuous agent loops.
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Pricing
Starting Price:
Free
Free Version:
Free Version available.
Free Trial:
Free Trial available.
Company Information
Arcee AI
Founded: 2023
United States
www.arcee.ai/blog/trinity-large-thinking
Videos and Screen Captures
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Product Details
Platforms Supported
Cloud
Training
Documentation
Videos
Support
Online
Trinity-Large-Thinking Frequently Asked Questions
Q: What kinds of users and organization types does Trinity-Large-Thinking work with?
Trinity-Large-Thinking works with these users and organization types: Mid Size Business, Small Business, Enterprise, Freelance, Nonprofit, Government, and Startup.
Q: What languages does Trinity-Large-Thinking support in their product?
Trinity-Large-Thinking supports these languages: English.
Q: What kind of support options does Trinity-Large-Thinking offer?
Trinity-Large-Thinking offers support via online.
Q: What other applications or services does Trinity-Large-Thinking integrate with?
Trinity-Large-Thinking integrates with: Vercel AI Gateway, Claude Fable 5.1, Claude Fable 5.2, Claude Fable 5, Claude Haiku 5.5, Claude Mythos 5.1, Claude Mythos 5.2, Claude Mythos 5, Claude Opus 4.6, Claude Opus 4.7, Claude Opus 4.8, Claude Opus 5.5, Claude Opus 5, Claude Sonnet 5.5, OpenClaw, OpenRouter, and Visual Studio Code.
Q: Does Trinity-Large-Thinking have an API?
Yes, Trinity-Large-Thinking has an API.
Q: What type of training does Trinity-Large-Thinking provide?
Trinity-Large-Thinking provides training in the form of documentation and videos.
Q: Does Trinity-Large-Thinking offer a free trial?
Yes, Trinity-Large-Thinking offers a free trial.
Q: How much does Trinity-Large-Thinking cost?
Pricing for Trinity-Large-Thinking starts at Free.
