Users report Opus 5.5 back to normal, suspect Anthropic silently reverted the degradation
ryunuck · x · 2026-11-09
User ryunuck reports Opus 5.5 seems "completely back to normal," suspecting Anthropic silently reverted the suspected nerf/quantization, likely under pressure as the company faced real-time reputational damage amid IPO plans. The improvement appeared around the previous evening (possibly earlier), though he wonders if he's in an A/B group. He previously caught the Opus 5.0 model switch a day before release last summer, but believes this is a config change rather than a different model. He criticizes Anthropic for staying silent while the entire platform lit up with reports at once.
More from Models
- Grok API text outputs now watermarked by default across 7 models for EU AI Act — thione · 2026-11-10
- Moonshot AI open-sources Kimi K3.1 Pro: 2.8T-param multimodal agent model with 1M-token context — thione · 2026-11-10
- OpenAI releases GPT-6 Cyber to approved security teams, expanding exploit-development capabilities — thione · 2026-11-10
- RT claim: GPT-4-level intelligence has gotten roughly 1800x smaller — CatAstro_Piyush · 2026-11-10
- Private OCR eval on 338 scanned government pages: 0.8B model beats 3B-class rivals — vanstriendaniel · 2026-11-10
- Kimi and 1017 are closer in performance than they appear, and both trail the frontier — teortaxesTex · 2026-11-10