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gpt-oss-20b
openai/gpt-oss-20b:free
gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
Stale or unknown
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- Free type
- Free route
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- 1Create or sign in to your OpenRouter account.Create an OpenRouter account
- 2Create an API key in provider settings.Create an API key
- 3Use the Quick test on the right to test your API key.
- 4Copy the example request on the right, replace the API key placeholder with your own key, and run it.
- 5Refer to the example request when using this route in your own project.
- Base URL
- https://openrouter.ai/api/v1
- Model ID
- openai/gpt-oss-20b:free
Quick test
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Example request
curl 'https://openrouter.ai/api/v1/chat/completions' \
-H "Authorization: Bearer ${OPENROUTER_API_KEY}" \
-H "Content-Type: application/json" \
-d '{"model":"openai/gpt-oss-20b:free","messages":[{"role":"user","content":"Reply with exactly: free-model-ok"}],"max_completion_tokens":16}'