{"slug": "glm-5-3-flash-unusably-slow", "title": "GLM 5.3 Flash unusably slow", "summary": "Users of GLM 5.3 Flash reported the model has become unusably slow, with response times of at least 3 minutes for simple questions, according to complaints posted on a discussion thread. Commenter shurik said the delay occurs when using the Kagi assistant app on iOS with GLM 5.3 Flash, while comicfrieze reported similar slowness and timeouts with QWEN 3.8 27b and DeepSeek V4.1 Flash over roughly the past two days, dating the issue to around September 15-16.", "body_md": "spiffytech Recently GLM 5.3 Flash has gone from usable to now it's so slow I just give up and walk away for minutes waiting for it to answer simple questions. Model responds quickly enough that I feel comfortable waiting on it.\n\nshurik same here - it is painfully slow. takes at least 3 (!) minutes to answer a simple question when using the kagi assistant app on ios with GLM 5.3 Flash.\n\ncomicfrieze It's not just GLM 5.3, but I've confirmed using QWEN 3.8 27b and DeepSeek V4.1 Flash. It's painfully slow, if it doesn't time out completely. I've noticed this over the past 2 days or so (definitely September 16... maybe September 15).", "url": "https://wpnews.pro/news/glm-5-3-flash-unusably-slow", "canonical_source": "https://kagifeedback.org/d/11445-glm-53-flash-unusably-slow/7", "published_at": "2026-09-17 19:50:12+00:00", "updated_at": "2026-09-17 19:53:31.818155+00:00", "lang": "en", "topics": ["large-language-models", "ai-products"], "entities": ["GLM 5.3 Flash", "Kagi", "QWEN 3.8 27b", "DeepSeek V4.1 Flash"], "alternates": {"html": "https://wpnews.pro/news/glm-5-3-flash-unusably-slow", "markdown": "https://wpnews.pro/news/glm-5-3-flash-unusably-slow.md", "text": "https://wpnews.pro/news/glm-5-3-flash-unusably-slow.txt", "jsonld": "https://wpnews.pro/news/glm-5-3-flash-unusably-slow.jsonld"}}