What Was Draining Codex Rate Limits (OpenAI Update)

Melvin Vivas · X post · 2026-08-23 · Open on X

Topics: AI Dev Tools & Productivity · Level: beginner

Summary

The creator quotes an OpenAI update about Codex rate limits and tells people to use up their remaining quota before the reset. The quoted update names the things that were using more quota than expected. Knowing them helps you manage usage in long agent coding sessions.

Key points

• Using images in long Codex sessions with many context compactions was inefficient and used extra quota.
• Usage for Computer History was very high at the p95+ level.
• A feature that generated conversation titles used more quota than intended.
• OpenAI responded by resetting Codex limits.
• Practical lesson: long sessions full of images and repeated compactions can quietly use up an AI coding tool's quota.

Resources mentioned

• OpenAI Codex · tool · openai.com · paid
  OpenAI's coding agent. In the diagram it writes code, fixes review findings and drives the build loop. The creator also used it to make this video.
  Also in: An agent bot that installs and drives Codex on its own (Melvin Vivas on X · notes), Asking a Coder bot to install Codex (Melvin Vivas on X · notes), Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Codex Cloud Environments Must Be Saved & Published Before Use (Melvin Vivas on X · notes) and 240 more

Try this

• Use up your remaining Codex limits before the reset.