OpenAI Responses
gpt-5.1
GPT-5.1 is our flagship model for coding and agentic tasks with configurable reasoning and non-reasoning effort.
Vision Support
Advanced Reasoning
Caching Support
Pricing
$1.25
Input tokens per million
$10.00
Output tokens per million
Caching Pricing
$10.00
Cache write per million
$0.13
Cache read per million
Technical Specifications
Context Window
400K tokens
Max Output Tokens
128K tokens
Global Availability
Last Updated
N/A