What this page answers
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
- OpenAI · openai/gpt-5.1-codex-mini
- text+image->text · global model route
- 400,000 context · $0.25 input
SEO release batch two
OpenAI: GPT-5.1-Codex-Mini | API capability profile
OpenAI: GPT-5.1-Codex-Mini API capability starts with model ID, modality, parameter surface, and the next key-check step.
Provider
OpenAI
62 models in catalog
Context
400,000
global model route
Input
$0.25
USD / 1M tokens
Output
$2
USD / 1M tokens
Before connecting
Do not stop at the model name. Before integration, verify base URL, protocol, visible models, parameters, and limits together.
- supports include_reasoning
- supports max_completion_tokens
- supports max_tokens
- supports reasoning
- supports response_format
Next action
The goal is to catch search demand, then move users into model profiles, provider profiles, and key checking.
- Check whether the model fits the use case
- Then verify key permission and callable models