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AIHubMix

GPT-5.1 Codex Mini API

AIHubMix
About

Build advanced reasoning agents with GPT-5.1 Codex Mini, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.25/1M input and $2.00/1M output tokens, native tool calling support. Access GPT-5.1 Codex Mini via the AIHubMix API with up to 128K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
400K

Tokens

Input Limit
400K

Tokens

Max Output
128K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.25
Output
$2.00

Caching (per 1M tokens)

Read
$0.03
Frequently Asked Questions

GPT-5.1 Codex Mini by AIHubMix costs $0.25 per 1M input tokens and $2.00 per 1M output tokens. Cached reads cost $0.03 per 1M tokens.

Model Details
ID
gpt-5.1-codex-mini
Provider
AIHubMix
Family
gpt-codex
Release Date
Nov 15, 2025
Knowledge Cutoff
Nov 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
AIHUBMIX_API_KEY
API Base URL
https://aihubmix.com/v1
Documentation