Why hackers moved from Codex to Claude Opus 5.5
1 hacker described this switch in public comments. Their words, with links to the originals.
What hackers said about the move
“It came out a week after I switched from Codex and started lamenting how much worse Opus felt to use than Sol, but whatever Anthropic did to fix it worked.”RestartKernel, 2026-10-28original comment ↗
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Codex vs Claude Opus 5.5
| Codex | Claude Opus 5.5 | |
|---|---|---|
| Hackers who recommend | 18 | 1 |
| Hackers who criticize | 4 | 1 |
| Moved away from it | 1 | 1 |
| Moved to it | 12 | 1 |
Counts are distinct hackers in the sampled comments, not market share.
Criticism of Codex
“Codex does phrase things weirdly sometimes, but Claude appears to barely speak English.”RestartKernel, 2026-09-16original comment ↗
“I could not figure out how to require Codex to ask me before editing files.”ferris-booler, 2026-08-10original comment ↗
“Lots of customers fled to Codex and they got crunched as well.”jeremyjh, 2026-04-23original comment ↗
“Codex (GPT 5.4 / High) where it was unflinchingly gaslighting me about undesired behavior still occurring after a change it made”toraway, 2026-03-14original comment ↗
Praise for Claude Opus 5.5
No further praise for Claude Opus 5.5 captured yet.
Other moves from Codex
- Codex → Claude (1)