Claude Opus 4.8 vs GPT-5.6 Terra
For product management work, compared on the PM Index.
- Claude Opus 4.8 leads on the PM Index (55.9 vs 55.7).
- GPT-5.6 Terra is cheaper ($5.63 vs $10.00 per 1M tokens).
- GPT-5.6 Terra is faster (144 vs 57 tok/s).
| Metric | Claude Opus 4.8 | GPT-5.6 Terra |
|---|---|---|
| PM Index | 55.9 | 55.7 |
| AA Intelligence | 55.7 | 55.0 |
| AA Coding | 74.3 | 76.7 |
| AA Agentic | 47.2 | 47.4 |
| Blended $/1M | $10.00 | $5.63 |
| Output tok/s | 57 | 144 |