Original Reddit post

I have a theory that they’re nerfing Claude Opus to free up computing power for the big tech giants to use their new and precious Claude Mythos. The performance of Opus 4.6 here dropped so much that I felt like I was using Haiku and switched to ChatGPT 5.4. Thoughts? submitted by /u/Due-Scholar8591

Originally posted by u/Due-Scholar8591 on r/ClaudeCode