About GPT 5.2
GPT 5.2 is a reasoning model for professional work with configurable reasoning effort. It supports adjustable reasoning effort levels (none, low, medium, high, xhigh), allowing users to balance speed and depth of analysis. It features a 400,000-token context window, streaming, function calling, structured outputs, and distillation support.
| Metric | Value |
|---|---|
| Context Length | 400,000 tokens |
| Max Output Tokens | 128,000 tokens |
| Multilingual | Yes |
Ready to build with GPT 5.2?
Try GPT 5.2 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.
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-5-2-2025-12-11",
"messages": [
{
"role": "user",
"content": "Try sending a message."
}
]
}'API endpoint
See the API reference for request and response formats.
POST
https://hub.oxen.ai/api/ai/chat/completions