Galaxy.ai Logo

Codex Mini Model Specs, Costs & Benchmarks (August 2025)

Codex Mini, developed by OpenAI, features a context window of 200K tokens. The model costs $1.50 per million tokens for input and $6.00 per million tokens for output. It was released on May 16, 2025, and has achieved impressive scores in various benchmarks.
Access Codex Mini & 210+ other AI models all in one platformTry Galaxy.ai for free

Overview

Codex MiniCodex Mini
Model Provider
The organization behind this AI's development
OpenAI logoOpenAI
Input Context Window
Maximum input tokens this model can process at once
200K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
100K
tokens
Release Date
When this model first became publicly available
May 16th, 2025

Pricing

Codex MiniCodex Mini
Input Token Cost
Cost per million input tokens
$1.50
per million tokens
Output Token Cost
Cost per million output tokens
$6.00
per million tokens

Capabilities & Features

Codex MiniCodex Mini
Input Types
Supported input formats
imagetext
Output Types
Supported output formats
text
Tokenizer
Text encoding system
GPT
Key Features
Advanced capabilities
✓ Function Calling✓ Structured Output✓ Reasoning Mode✓ Content Moderation

Benchmarks

Codex MiniCodex Mini
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Not available
MMMU
Measures understanding of combined text and images across various domains
Not available
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Not available

Compare This Model

See how Codex Mini compares with other top models

Compare Codex Mini with top models in each category: