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 This model is optimized for agentic workflows and performs best when reasoning is preserved (aka interleaved thinking). Learn how to preserve reasoning in our docs:
arcee-ai/trinity-large-thinking
- Context
- 262k tokens
- Completion cap
- 262,144
- Tools
- Yes
- JSON
- Yes
- Released
- 2026-04-01
Call it from Geek Hub
Same OpenAI SDK. Change the base URL and the model id.
curl https://api.geekhub.mx/v1/chat/completions \
-H "Authorization: Bearer $GEEKHUB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "arcee-ai/trinity-large-thinking",
"messages": [{"role": "user", "content": "Hola"}]
}'Frequently asked questions
- 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 This model is optimized for agentic workflows and performs best when reasoning is preserved (aka interleaved thinking). Learn how to preserve reasoning in our docs: Trinity Large Thinking runs on the Geek Hub API (OpenAI-compatible). Model id: arcee-ai/trinity-large-thinking.
- Is Trinity Large Thinking free?
- No. Input is $0.2398 per 1M tokens and output is $0.9266 per 1M tokens on Geek Hub (markup included).
- What is the context length of Trinity Large Thinking?
- Trinity Large Thinking has a 262k tokens context window. It supports up to 262,144 completion tokens.
- Does Trinity Large Thinking support tool calling and structured outputs?
- Trinity Large Thinking accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
- When was Trinity Large Thinking released?
- Trinity Large Thinking was released on 2026-04-01.