Why hackers moved from Claude Opus 4 to Claude Opus 5
1 hacker described this switch in public comments. Their words, with links to the originals.
What hackers said about the move
“we moved from opus 4 to opus 5 without changing anything and no specific conflicts.”gojkoa, 2026-07-28original comment ↗
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Claude Opus 4 vs Claude Opus 5
| Claude Opus 4 | Claude Opus 5 | |
|---|---|---|
| Hackers who recommend | 0 | 3 |
| Hackers who criticize | 0 | 3 |
| Moved away from it | 1 | 2 |
| Moved to it | 0 | 3 |
Counts are distinct hackers in the sampled comments, not market share.
Criticism of Claude Opus 4
No further criticism of Claude Opus 4 captured yet.
Praise for Claude Opus 5
“I switched from Sol because performance was better with Opus 5.”Gareth321, 2026-08-15original comment ↗
“I switched from 4.8 to 5 yesterday and I'd have to say that I've noticed an improvement, though not hugely perceptible”spottedmarley, 2026-07-25original comment ↗