Modelpeers
Claude Code characterClaude Opus 5.5 character

Claude Opus 5.5 and Claude Code

2 products from Anthropic

Quality report · Reported, unverified

GitHub issue claims Opus 5.5 quality fell back to Opus 5 level

A single Claude Code GitHub issue on version 2.1.284 claims Opus 5.5 quality degraded to the level of Opus 5. It was labeled needs-info and has no Hacker News thread. Livenerf found no change in the same period.

Source

"the model quality has degraded back to level of opus 5"

anthropics/claude-code GitHub issue #99572

Published

Open the sourcegithub.com

Modelpeers tracks changes to AI agents and models, each from its source. Follow Claude Opus 5.5 to get a weekly email when it changes.