MANIFOLD
Will Anthropic publicly acknowledge a significant/systematic degradation of Claude Opus 4.5 by February 29, 2026?
27
Ṁ1kṀ20k
resolved Mar 3
Resolved
NO

This market resolves YES if, on or before 2026‑02‑29 (any time zone), Anthropic publishes an official statement acknowledging that Claude Opus 4.5’s output quality was degraded for some users or workloads compared to its intended baseline, due to a bug, configuration change, infrastructure issue, or similar. Otherwise NO

- Doesn't count short/transient error issues. Focused on larger scale degradation of results quality (empirically things have worsened statistically over the last month or so, see comments)

- Communication should come from a reputable company source (company blog, status page, press release, executive public comments, tweets from VP+). Speculation or unconfirmed "whistleblower" style leaks don't count.

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yeah i wouldn’t think the links below rise to the level of wht is described in the question. (though both will be VP soon enough i am sure) appreciate the legwork 🙏

We've received some feedback about a potential degradation of Opus 4.5 specifically in Claude Code.

We're taking this seriously: we're going through every line of code changed and monitoring closely.

In the meantime please submit any transcripts with issues through /feedback

https://x.com/trq212/status/2001541565685301248

Also this is kinda borderline. He hedges as a "potential degradation", and not a VP+.

sold Ṁ95 YES

I found these comments from Anthropic employees acknowledging degradation of Claude Code performance around this timeframe:

https://news.ycombinator.com/item?id=46815013

https://news.ycombinator.com/item?id=46981968

But that's not Opus 4.5 per se.

By “February 29” do you mean “March 1”?

@derikk is this not clear? (not being a jerk legit asking) “This market resolves YES if, on or before 2026‑02‑29 (any time zone), Anthropic publishes”

i haven’t seen any company acknowledgments, inclined to resolve NO please lmk if any compelling evidence otherwise

I’ve noticed it getting worse as well

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