Codex is Good, But Struggles with Computer Use

jasondeanlee · x · 2026-07-11

The author believes Codex 5.6 performs well, but computer-use has seen almost no significant progress.

They tried to make it "hack" its own Firefox installation within a Windows sandbox VM to modify the PDF viewer sidebar, but the model struggled significantly, indicating that this type of computer operation capability remains unstable.

Related event: Codex 5.6 Is Strong at Coding but Still Weak at Computer Use(2 posts)→

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