OpenAI: GPT-5.2-Codex

Model details

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OpenAI: GPT-5.2-Codex

Model
openai/gpt-5.2-codex
Provider
openrouter
API
openai-completions
Base URL
https://openrouter.ai/api/v1
Input
text, image
Reasoning
Yes
Context window
400,000
Max tokens
128,000
Cost / million input
$1.75
Cost / million output
$14
Cost / million cache read
$0.175
Cost / million cache write
$0

Also available from other providers

Model config JSON
{
  "providers": {
    "openrouter": {
      "apiKey": "YOUR_API_KEY",
      "models": [
        {
          "id": "openai/gpt-5.2-codex",
          "name": "OpenAI: GPT-5.2-Codex",
          "reasoning": true,
          "input": [
            "text",
            "image"
          ],
          "contextWindow": 400000,
          "maxTokens": 128000,
          "cost": {
            "input": 1.75,
            "output": 14,
            "cacheRead": 0.175,
            "cacheWrite": 0
          }
        }
      ],
      "api": "openai-completions",
      "baseUrl": "https://openrouter.ai/api/v1"
    }
  }
}