Claude Opus 4.5 is the newer model, released after Sherlock Think Alpha.
| Spec | Claude Opus 4.5 | Sherlock Think Alpha |
|---|---|---|
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Nov 2025 | Nov 2025 |
Not enough votes to call it. On the specs, nothing separates them.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Sherlock Think Alpha uses 10.1x more transitions