gpt-oss-20b is OpenAI’s medium-sized open-weight model for low latency, local, or specialized use cases. It has 21B parameters with 3.6B active parameters, a 131,072-token context window, and a knowledge cutoff of June 1, 2024. Released under the Apache 2.0 license. Reasoning effort can be set to low, medium, or high.
$0.0541 in · $0.2317 out / 1M
| Usage | Rate (USD) | Unit |
|---|---|---|
| Input tokens | $0.0541 | per 1M tokens |
| Output tokens | $0.2317 | per 1M tokens |
Official model pricing · currency: USD · pre-deduction settled by actual usage
OpenAI-compatible · base URL https://api.tunerouter.com/v1/
curl https://api.tunerouter.com/v1/chat/completions \
-H "Authorization: Bearer $TUNEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "gpt-oss-20b", "messages": [{"role": "user", "content": "Hello!"}]}'Model ID: gpt-oss-20b · works with OpenAI SDKs — just point base_url at api.tunerouter.com