Model lifecycle
Claude Opus 5
Released 2026-07-24 · Back to Claude
Exact-version signals observed 2026-07-25–2026-07-25 · n=440
Lifecycle updated daily · latest complete UTC day 2026-07-25
- Fixed 14-day baseline
- – –
- Latest 28 days
- – n=437
- Change vs baseline
- –
- 90-day slope
- – pts / 30 days
14-day rolling experience
Each daily point summarizes the previous 14 complete UTC days. The dashed line is the fixed release baseline; the verdict still uses independent non-overlapping 14-day segments.
1 of 14 calendar days collected · first possible point 2026-08-07 · current signals n=440
What explains the change
Experience change and discussion-mix change are separated. These are observational contributions, not proof of cause.
No category has enough samples in both windows for a contribution conclusion.
| Category | Baseline → current | Category change | Weight share | Experience contribution | Discussion-mix contribution |
|---|---|---|---|---|---|
| Coding | not enough datan=0 → 56 | – | – | – | – |
| Image / vision | not enough datan=0 → 0 | – | – | – | – |
| Local deploy | not enough datan=0 → 0 | – | – | – | – |
| Reasoning | not enough datan=0 → 118 | – | – | – | – |
| Roleplay / creative | not enough datan=0 → 5 | – | – | – | – |
| Safety & refusals | not enough datan=0 → 12 | – | – | – | – |
| Speed & latency | not enough datan=0 → 82 | – | – | – | – |
| General text | not enough datan=0 → 165 | – | – | – | – |
Lifecycle scores use the same experience-signal weights as the main index, without sample shrinkage after n=30. They measure public user perception, not model capability or backend causes.