openai/gpt-oss-120b/Released Aug 2025

OpenAI/GPT-OSS-120B

Open MoE reasoning model

Text
Token-based
Input$0.15 / 1M tokens
Output$0.60 / 1M tokens

Ready to build with OpenAI/GPT-OSS-120B?

Sign in to grab your API key and start making requests.
bash
curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    -d '{
  "model": "gpt-oss-120b",
  "messages": [
    {
      "role": "user",
      "content": "Try sending a message."
    }
  ]
}'