Updated
GPT-6 Astra
As of Nov 9, 2026, GPT-6 Astra ranks #4 of 7 on Bug Bench with a relative bug rate of 0.95 (5% fewer counted bugs than average), statistically tied with Claude Fable 5.1 and Claude Sonnet 5.5.
- Relative bug rate
- 0.95
- Rank of 7
- #4
- Tied with
- Claude Fable 5.1 and Claude Sonnet 5.5
1.00 = average · lower is better
- Provider
- OpenAI
- Released
- Sep 4, 2026
- Price per 1M tokens
- $10 in · $50 out
- First seen
- Week of Aug 31
Nearby in the ranking
| Rank | Model | Rate |
|---|---|---|
| 2 | GPT-6.1 Sol | 0.74 |
| 3= (statistically tied) | Claude Fable 5.1 | 0.88 |
| 4 | GPT-6 Astra | 0.95 |
| 5= (statistically tied) | Claude Sonnet 5.5 | 1.04 |
| 6 | Claude Opus 5.5 | 1.11 |
Is GPT-6 Astra getting worse?
Not enough weekly data yet (0 of 6 weeks).
Where it does better or worse
# = rank among models
How widely GPT-6 Astra is used
Share of AI-written code reviewed by cubic
- Latest weekWeek of Nov 2
- 4.5%
- Peak weekWeek of Sep 7
- 22.7%
Compare GPT-6 Astra
Questions and answers
- Is GPT-6 Astra good for coding?
- GPT-6 Astra ranks #4 of 7 on Bug Bench, with 5% fewer counted bugs than average (0.95) from Jul 20 to Nov 8, 2026.
- Is GPT-6 Astra getting worse?
- Not enough weekly data yet (0 of 6 weeks).
- Which coding agent has the lowest bug rate with GPT-6 Astra?
- Codex, at 0.96.
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