Skip to content
Not available in this workspace
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Collections
  • Providers
  • Pricing
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Support
  • Works With OR
  • Data

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube
Favicon for openai

OpenAI: Codex Mini

openai/codex-mini

codex-mini-latest is a fine-tuned version of o4-mini specifically for use in Codex CLI. For direct use in the API, we recommend starting with gpt-4.1.

Modalities

Context

200K

Released

May 16, 2025

Knowledge Cutoff

Jun 2024

ActivityFAQExplore

Activity

Token volume and request traffic to this model over time.

About OpenAI: Codex Mini

OpenRouter makes OpenAI: Codex Mini available through a unified, OpenAI-compatible API using the model ID openai/codex-mini.

OpenAI: Codex Mini accepts images and text and returns text. It has a 200,000-token context window.

It was released on May 16, 2025; its knowledge cutoff is June 30, 2024.

More models from OpenAI

  • GPT Transcribe
  • GPT-5.6 Luna Pro
  • GPT-5.6 Luna

Explore models like this

AI Models with Vision: Multimodal LLMs for Image UnderstandingCollectionAI Model RankingsRanking

Frequently asked questions

codex-mini-latest is a fine-tuned version of o4-mini specifically for use in Codex CLI. For direct use in the API, we recommend starting with gpt-4.1.

Codex Mini has a 200,000 token context window.

Codex Mini accepts images and text as input and returns text.

GPT-5.6 Luna Pro, GPT-5.6 Luna, GPT-5.6 Terra Pro and 56 more are other text models from OpenAI.

Codex Mini was released on May 16, 2025. Its knowledge cutoff is June 30, 2024.