OpenAI: GPT-5.2

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly...

Modalities

In / Out Price

$1.75 / $14 per 1M

Context

400K

Released

Dec 10, 2025

Knowledge Cutoff

—

API

Reroute speaks the OpenAI Chat Completions format. Point any OpenAI SDK at https://reroute.wtf/api/v1 and use openai/gpt-5.2 as the model.

You need an API key

Keys start with sk-rr-v1- and are shown once.

Create API key

curl https://reroute.wtf/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $REROUTE_API_KEY" \
  -d '{
  "model": "openai/gpt-5.2",
  "messages": [
    { "role": "user", "content": "What is the meaning of life?" }
  ]
}'

Streaming

Set stream: true to receive server-sent events. The final chunk carries usage and cost.

curl -N https://reroute.wtf/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $REROUTE_API_KEY" \
  -d '{ "model": "openai/gpt-5.2", "stream": true,
        "messages": [{ "role": "user", "content": "Count to five" }] }'