AllenAI: Olmo 3 7B Think

Going away March 23, 2026

allenai/olmo-3-7b-think

Released Nov 21, 202565,536 context

$0.12/M input tokens$0.20/M output tokens

Olmo 3 7B Think is a research-oriented language model in the Olmo family designed for advanced reasoning and instruction-driven tasks. It excels at multi-step problem solving, logical inference, and maintaining coherent conversational context. Developed by Ai2 under the Apache 2.0 license, Olmo 3 7B Think supports transparent, fully open experimentation and provides a lightweight yet capable foundation for academic research and practical NLP workflows.

Providers for Olmo 3 7B Think

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

Performance for Olmo 3 7B Think

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Effective Pricing for Olmo 3 7B Think

Actual cost per million tokens across providers over the past hour

Apps using Olmo 3 7B Think

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Recent activity on Olmo 3 7B Think

Total usage per day on OpenRouter

Prompt

674K

Reasoning

534K

Completion

166K

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

Uptime stats for Olmo 3 7B Think

Uptime stats for Olmo 3 7B Think across all providers

Sample code and API for Olmo 3 7B Think

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.

Olmo 3 7B Think - API Pricing & Providers | OpenRouter