openai/gpt-5-1-2025-11-13/Released Nov 2025

GPT 5.1

Automatically routes prompts to fast or deep reasoning modes, with adaptive effort, enhanced tone and style controls, and improved coding and math.

Provider

openai

Modality

multi-to-text

Released

Nov 2025

Pricing

$1.25 / 1M in$10.00 / 1M out

Ready to build with GPT 5.1?

bash

curl -sSf -X POST https://hub.oxen.ai/api/chat/completions \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    -d '{
  "model": "gpt-5-1-2025-11-13",
  "messages": [
    {
      "role": "user",
      "content": "Try sending a message."
    }
  ]
}'