Arcee AI: Trinity Mini (free)

arcee-ai/trinity-mini:free

Released Dec 1, 2025131,072 context

$0/M input tokens$0/M output tokens

Trinity Mini is a 26B-parameter (3B active) sparse mixture-of-experts language model featuring 128 experts with 8 active per token. Engineered for efficient reasoning over long contexts (131k) with robust function calling and multi-step agent workflows.

Providers for Trinity Mini (free)

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Performance for Trinity Mini (free)

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Effective Pricing for Trinity Mini (free)

Actual cost per million tokens across providers over the past hour

Apps using Trinity Mini (free)

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Prompt

1.73B

Reasoning

109M

Completion

40.5M

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.

Uptime stats for Trinity Mini (free)

Uptime stats for Trinity Mini (free) across all providers

Sample code and API for Trinity Mini (free)

OpenRouter normalizes requests and responses across providers for you.

OpenRouter supports reasoning-enabled models that can show their step-by-step thinking process. Use the reasoning parameter in your request to enable reasoning, and access the reasoning_details array in the response to see the model's internal reasoning before the final answer. When continuing a conversation, preserve the complete reasoning_details when passing messages back to the model so it can continue reasoning from where it left off. Learn more about reasoning tokens.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.

Trinity Mini (free) - API Pricing & Providers | OpenRouter