arcee-ai

Arcee AI: Trinity Large Preview (free)

by arcee-ai

OpenRouter
Tools Long Context

About

Trinity-Large-Preview is a frontier-scale open-weight language model from Arcee, built as a 400B-parameter sparse Mixture-of-Experts with 13B active parameters per token using 4-of-256 expert routing. It excels in creative writing, storytelling, role-play, chat scenarios, and real-time voice assistance, better than your average reasoning model usually can. But we’re also introducing some of our newer agentic performance. It was trained to navigate well in agent harnesses like OpenCode, Cline, and Kilo Code, and to handle complex toolchains and long, constraint-filled prompts. The architecture natively supports very long context windows up to 512k tokens, with the Preview API currently served at 128k context using 8-bit quantization for practical deployment. Trinity-Large-Preview reflects Arcee’s efficiency-first design philosophy, offering a production-oriented frontier model with open weights and permissive licensing suitable for real-world applications and experimentation.

Specifications

Context Length 131K
Max Output Tokens -
Modality text->text
Input text
Output text
Supported Parameters max_tokens, response_format, structured_outputs, temperature, tools, top_k, top_p
Content Moderation No

Error Rate

Based on feedback reported by Free LLM Router users. Error rate reflects the percentage of requests that encountered issues such as rate limiting, unavailability, or errors. Learn more.

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Availability

Available 41 of 41 tracked days. Daily snapshots show whether this model was accessible as a free model on OpenRouter.

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Arcee AI: Trinity Large Preview (free)30

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Frequently Asked Questions

Is Arcee AI: Trinity Large Preview (free) free to use?

Yes, Arcee AI: Trinity Large Preview (free) is completely free to use through OpenRouter. You can access it via the Free LLM Router API at no cost.

What is the context window for Arcee AI: Trinity Large Preview (free)?

Arcee AI: Trinity Large Preview (free) supports a context window of 131K tokens (131,000 tokens).

Does Arcee AI: Trinity Large Preview (free) support function calling (tools)?

Yes, Arcee AI: Trinity Large Preview (free) supports function calling / tool use, enabling it to interact with external APIs and services.