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gpt-oss-120b

openai/gpt-oss-120b

Open model from OpenAI: reasoning for pennies

reasoningtoolsfast
Try in chat Get API key
Input
$0.039
per 1M tokens
Output
$0.18
per 1M tokens
Typical reply
≈ $0.00013
1k tokens in, 500 out
Context
128K
Context
Speed
180 tok/s
*
Time to first token
0.5 s
*

* Speed and latency are approximate.

How to use

Use the model ID in the model field of any OpenAI-compatible request.

curl https://zelvimou.com/v1/chat/completions \
  -H "Authorization: Bearer sk-zelvimo-YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-oss-120b",
    "messages": [{"role": "user", "content": "Hello! What can you do?"}]
  }'

Replace sk-zelvimo-YOUR_KEY with your key from the API keys page.

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