OpenAI

GPT-5.1 Codex mini

gpt-5.1-codex-mini

A coding-focused model for repository edits, reviews, and agentic software work.

Coding-optimized GPT model for repository edits, reviews, and agentic software work

400K context400K context
Released2025-11-13
Relays9 sites
code generationreasoningtool uselong context

Model information

Model ID
gpt-5.1-codex-mini
Context
400K
Max input
272K
Max output
128K
Knowledge cutoff
2024-09-30
Open weights
Not supported
License
-
Release date
2025-11-13

Input

Text: SupportedImage: SupportedAudio: Not supportedVideo: Not supportedPDF: Not supportedFile: Supported

Output

Text: SupportedImage: Not supportedAudio: Not supportedVideo: Not supported

API capabilities

Reasoning: SupportedTool call: SupportedStructured output: UnknownTemperature: Not supported

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should GPT-5.1 Codex mini relay pricing be compared?

This GPT-5.1 Codex mini pricing page compares official pricing with public prices from 9 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 10/23/2026, 08:14.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.