Codex tasks regressed from under 5 minutes to 30-50 minutes

What version of the Codex App are you using?

Version 26.609.41114, released Jun 12, 2026.

What subscription do you have?

Not sure / user account details not included in this report.

What platform is your computer?

macOS, using the Codex desktop app.

What issue are you seeing?

Codex has become dramatically slower for normal project work. Tasks that used to complete in under ~5 minutes are now taking roughly 30-50 minutes.

A recent concrete example: Codex worked for 43m 56s on a task that mainly involved documenting/continuing an existing project task, updating analytics/task/backlog/session files, adding a backend slice, and running checks/smoke tests. This kind of workflow used to complete much faster in the same project.

The slowdown feels like a general throughput/regression issue rather than a project-specific blocker:

• long stretches of waiting while Codex is thinking or performing routine tool work;
• small/medium documentation + code tasks now take tens of minutes;
• the issue is significant enough that the normal Codex workflow is becoming hard to use interactively.

What steps can reproduce the bug?

1. Open an existing medium-sized project in the Codex desktop app.
2. Ask Codex to continue a documented task from project files, update task/backlog/session documentation, make a small backend implementation slice, and run normal checks.
3. Observe that the end-to-end turn takes 30-50 minutes instead of the previous under-5-minute range for comparable work.

What is the expected behavior?

Comparable project tasks should complete in the previous latency range, or at least not regress by ~6-10x for ordinary work. Routine file reads/edits/checks should not turn into 30-50 minute runs unless the task is genuinely large or blocked.

Additional information

This looks related to several recent performance reports, but I am filing a separate issue because the symptom is an end-to-end agentic task latency regression, not only startup latency or UI lag:

• #27491
• #27531
• #21527
• #24260

The latest observed task duration was 43m 56s on Friday, June 12, 2026.