Updated
Claude Opus 5
As of Nov 9, 2026, Claude Opus 5 is tracked on Bug Bench but is no longer ranked because it now writes under 0.5% of AI-attributed lines. Claude Opus 5 accounted for 0.5% of AI-attributed added lines in the week of Nov 2, 2026.
- Status
- No longer ranked
- Provider
- Anthropic
- Released
- Jul 24, 2026
- Price per 1M tokens
- $5 in · $25 out
- First seen
- Week of Jul 20
How widely Claude Opus 5 is used
Share of AI-written code reviewed by cubic
- Latest weekWeek of Nov 2
- 0.5%
- Peak weekWeek of Aug 3
- 46.4%
Compare Claude Opus 5
Questions and answers
- Is Claude Opus 5 good for coding?
- Claude Opus 5 is no longer ranked because it now writes under 0.5% of AI-attributed lines. Bug Bench ranks the models people use now, so compare it with the ranked models instead.
- How does Claude Opus 5 compare to Claude Opus 4.8?
- Claude Opus 5 is no longer ranked because it now writes under 0.5% of AI-attributed lines, and Claude Opus 4.8 is no longer ranked because it now writes under 0.5% of AI-attributed lines.
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<a href="https://www.cubic.dev/bugbench/models/claude-opus-5"><img src="https://www.cubic.dev/bugbench/badge/claude-opus-5" alt="Claude Opus 5 on Bug Bench" /></a>