by Arcee Ai

Arcee AI: Trinity Large Thinking.

text open weights 262K ctx
Cheapest input
$0.22/M
on OpenRouter
Cheapest output
$0.85/M
on OpenRouter
Fastest
104 tok/s
on OpenRouter
Hosted equiv.
~$0.31/hr
@ 100 tok/s on OpenRouter

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

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.22 $0.85 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 103.8 4817 ms
FAQ

Frequently asked.

How do I run Arcee AI: Trinity Large Thinking?
Arcee AI: Trinity Large Thinking is open-weight, so you can self-host on rented GPUs. See the Run It Yourself tab for GPU configurations + cost estimates, or use one of the hosted inference providers listed on this page.
Where can I access Arcee AI: Trinity Large Thinking?
Arcee AI: Trinity Large Thinking is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Arcee AI: Trinity Large Thinking?
API pricing starts at $0.22/M input tokens and $0.85/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Arcee AI: Trinity Large Thinking open-source or proprietary?
Arcee AI: Trinity Large Thinking is open-weight under the license. You can download and self-host it.