GPT-5.1

Overview

Intelligent reasoning model for coding and agentic tasks with configurable reasoning effort

Key Capabilities

• Reasoning — suited for tasks requiring reasoning proficiency
• Code Generation — suited for tasks requiring code generation proficiency
• Agentic Tasks — suited for tasks requiring agentic tasks proficiency
• Vision — suited for tasks requiring vision proficiency
• Function Calling — suited for tasks requiring function calling proficiency

Recommended Use Cases

• Complex Migration
• Architecture Analysis
• Code Refactoring

Technical Specifications

• Context Window: 256K tokens
• Max Output Tokens: 66K tokens
• Open Weight: No
• Release Date: September 15, 2025

Pricing

$8/M input tokens, $32/M output tokens

Provider

GPT-5.1 is developed by OpenAI. For the latest information, visit the official documentation.