Azure Cognitive ServicesGPT-5.1 Codex Mini model ID, context window & pricing
gpt-codex
Quick facts
Model ID gpt-5.1-codex-mini
Source Azure Cognitive Services
Context Window 400000
Pricing $0.25 input / $2.00 output per 1M tokens
Capabilities tool calling, reasoning, structured output
Model overview
GPT-5.1 Codex Mini is an AI model from Azure Cognitive Services with 400000 token context window and text, image input support.
Published pricing is $0.25 input and $2.00 output per 1M tokens.
- Workloads that use text, image inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID gpt-5.1-codex-mini
Provider Azure Cognitive Services
Family gpt-codex
Status -
Knowledge Cutoff 2024-09-30
Release Date 2025-11-14
Input Modalities text, image
Output Modalities text
Context Window 400000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control No
Open Weights No
Input Cost / 1M tokens $0.25
Output Cost / 1M tokens $2.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.03
Cache Write Cost / 1M tokens -