Post
The New Stack
thenewstack.io
did:plc:kfaqksbyr3zwzvzj3wpbpvac
Anthropic says Opus 5.5 is 40% cheaper and 30% faster than Opus 5. On hard reasoning tests, the savings held up. The speed claim fell short.
https://bit.ly/4z5QjUQ
2026-09-28T13:30:18.957Z