OpenAI/gpt-5-mini/Released Aug 2025

GPT 5 Mini

Low-cost GPT-5 for real-time apps

Commercial use
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About GPT 5 Mini

GPT 5 Mini is an LLM designed for cost-sensitive and real-time applications. It excels in well-defined tasks that require precise prompts, offering a balanced tradeoff between speed, capability, and cost efficiency.

Some other noteworthy features of GPT 5 Mini include support for multimodal inputs (text and image), a substantial 400,000-token context window, and robust function-calling capabilities for structured outputs and tool integration.

MetricValue
Context Length400,000 tokens
MultilingualYes

Ready to build with GPT 5 Mini?

Try GPT 5 Mini in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.

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-5-mini",
  "messages": [
    {
      "role": "user",
      "content": "Try sending a message."
    }
  ]
}'
GPT 5 Mini on Oxen | Oxen.ai