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Specs

Model IDarcee-ai/trinity-large-thinking
Context window262K tokens
Max output80K tokens
Input price$0.25 / 1M tokens
Output price$0.80 / 1M tokens
Inputs → outputsText → Text
Open weightsYes

How to use Trinity Large Thinking in your app

The quickest way is through an API gateway such as OpenRouter, which uses the same format as the OpenAI API. Create a key, then send a request with the model ID arcee-ai/trinity-large-thinking:

curl https://openrouter.ai/api/v1/chat/completions \ -H "Authorization: Bearer $OPENROUTER_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "arcee-ai/trinity-large-thinking", "messages": [{"role": "user", "content": "Explain this in simple words..."}] }'

Prefer no code? Many tools in our AI tools directory run on models like this one.

Questions about Trinity Large Thinking

What is 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...

How big is the context window of Trinity Large Thinking?

Trinity Large Thinking can read up to 262,144 tokens in one request, roughly 196,608 words.

How much does Trinity Large Thinking cost?

Through OpenRouter, Trinity Large Thinking costs about $0.25 / 1M tokens for input and $0.80 / 1M tokens for output. Prices change, so check before large jobs.

Is Trinity Large Thinking open source?

Trinity Large Thinking has open weights, so you can download and run it yourself, subject to its licence.

What can Trinity Large Thinking take as input?

Trinity Large Thinking accepts text and produces text.

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Specs and prices come from OpenRouter and the provider, and are refreshed daily. Last checked 1 Apr 2026.

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