Updated
Claude Opus 4.8 vs GPT-5.6 Sol
Claude Opus 4.8 is no longer ranked because it now writes under 0.5% of AI-attributed lines, and GPT-5.6 Sol is no longer ranked because it now writes under 0.5% of AI-attributed lines.
| Claude Opus 4.8 | GPT-5.6 Sol | |
|---|---|---|
| Bug rate | ||
| Relative bug rate | No longer ranked | No longer ranked |
| Details | ||
| Provider | Anthropic | OpenAI |
| Released | May 28, 2026 | Jul 9, 2026 |
| List price | $5 input / $25 output per 1M tokens | $4 input / $20 output per 1M tokens |
| Share of AI-written code, week of Nov 2 | 0.2% | 0.3% |
1.00 = average · lower is better
More comparisons
Questions and answers
- Which has fewer bugs, Claude Opus 4.8 or GPT-5.6 Sol?
- Claude Opus 4.8 is no longer ranked because it now writes under 0.5% of AI-attributed lines, and GPT-5.6 Sol is no longer ranked because it now writes under 0.5% of AI-attributed lines.
- Which is cheaper, Claude Opus 4.8 or GPT-5.6 Sol?
- Claude Opus 4.8 lists at $5 input / $25 output per 1M tokens; GPT-5.6 Sol lists at $4 input / $20 output per 1M tokens. GPT-5.6 Sol has the lower list price.
- Which is used more, Claude Opus 4.8 or GPT-5.6 Sol?
- GPT-5.6 Sol, with 0.3% of the AI-written code reviewed by cubic in the week of Nov 2, 2026, against 0.2% for Claude Opus 4.8.