Users Report Claude Opus 5.5 Silently Routing to a Much Stronger New Checkpoint

rickasaurus · x · 2026-10-12

User @cheatyyyy noticed Claude Opus 5.5 appears to route to a new checkpoint at least 50% of the time, calling it a big improvement over the already impressive Opus 5.5. rickasaurus tested it and confirmed "I'm not crazy." Intel sourced from @legitapi and the Dev Mode Discord. Community observation, unconfirmed by Anthropic.

Original post →

More from Models

Models channel →