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397•08/15/2026, 21:30•2 min read

OpenAI's Codex Performance Update

OpenAI's Codex Performance Update
Executive TL;DR30s read

OpenAI has announced a significant performance update for Codex that will greatly enhance the loading speed of long dialogues.

OpenAI has showcased the results of a major performance update for Codex, set to be released next week.

This update aims to significantly speed up the loading of very long dialogues while simultaneously reducing memory consumption and the number of requests.

In an extreme test with a dialogue consisting of 741 messages and a size of 231 MB:

  • Loading time decreased from 27.6 seconds to 1.7 seconds.
  • The number of requests dropped by 98%.
  • The number of loaded conversation elements was reduced by 99.6%.
  • The increase in memory consumption by the application was lowered by 41%.

This update promises to greatly improve the user experience when working with Codex.

Why it matters

Analysis

This update will significantly enhance the efficiency of Codex, positively impacting developers and users. The reduction in memory consumption and loading times opens up new possibilities for integrating Codex into various projects.

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