GPT-5.1-Codex-Max
openai/gpt-5.1-codex-max
byOpenAI400K contextReleased Dec 4, 2025ToolsVisionReasoning
GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic...
- Input
- $1.36
- per 1M tokens
- Output
- $10.87
- per 1M tokens
- Cached input
- $0.136
- per 1M tokens
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curl https://gateway.ditfa.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $DITFA_API_KEY" \
-d '{
"model": "openai/gpt-5.1-codex-max",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'