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OpenAI: GPT-5.1-Codex
gpt-5.1-codex
GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Modalities
Input
textimage
Output
text
Pricing
Cost per 1 million tokens
Input
$1.5
Output
$12
Model Specs
Context Window
400,000Max Output
128,000Release Date
2025-11-13Knowledge Cutoff
2024-09-30Capabilities
Reasoning
Tool Calling
Vision
Last Updated: 2025-11-13
Provider: