Comparison
Claude Opus 4.8 vs Claude Opus 4.5 — cost compared
Claude Opus 4.8 and Claude Opus 4.5, compared on real per-million-token pricing.
| Attribute | Claude Opus 4.8 | Claude Opus 4.5 |
|---|---|---|
| Input / 1M | $5.00 | $5.00 |
| Output / 1M | $25.00 | $25.00 |
| Cache read / 1M | $0.50 | $0.50 |
| Cache write 1h / 1M | $10.00 | $10.00 |
Reading the comparison
All figures are USD per million tokens at API list prices. Cache-read economics often matter more than the headline input/output rates for a well-cached coding session.
Common questions
- Which is cheaper, Claude Opus 4.8 or Claude Opus 4.5?
- It depends on your input/output mix and how much you cache. The table shows each rate so you can weigh your own workload.