Revision History
Claude Opus 5.5 · 6 revisions
Sizes are character counts of the article source. The signed number is the change from the previous revision.
Recent edit summaries
Detailed summaries recorded by editors. Generic maintenance summaries are omitted here; every recorded revision remains below. Dates describe the edit, not necessarily the event it covers.
- Improve internal links (2026-10-13)
Version 6 · Oct 13, 2026, 10:18 AM
- Verification fixes: OSWorld label history (launch post edited 28 Sep); system-card row keeps card label; FrontierCode sentence logic
Version 5 · Sep 29, 2026, 07:30 AM
- Correction: OSWorld 2.0 relabelled 2.1 with attribution; Sonnet 5.5 released Sep 28; Fable 5.1 FrontierCode 52.8% vs 50.9% conflict attributed; comparability claim re-attributed to Artificial Analysis; CVP status updated; links to new pages
Version 4 · Sep 29, 2026, 07:21 AM
- Correction: reference 6 date is September 12, 2026; link "We Must Pace the Frontier"
Version 3 · Sep 28, 2026, 01:46 PM
- Verification fixes: safeguards wording now 'similar' and attributed; benchmark provenance (Cognition, Cursor, Artificial Analysis, Zapier); FrontierCode effort note is Anthropic's; research-task description; HealthBench length-adjusted note; re-run/version comparability caveat; AA-Briefcase rounding; second sandbox evaluation caveat
Version 2 · Sep 23, 2026, 07:07 AM