Claude Code's Fable 5 model experienced significant issues following its release, rendering it unusable for 19 days due to glitches. The model, developed by Anthropic, continues to exhibit performance problems even after this extended outage. The specific nature of these glitches and their ongoing impact on user experience remain a concern. AI
IMPACT Ongoing performance issues with Claude Code's Fable 5 model may impact user trust and adoption of Anthropic's coding tools.
RANK_REASON This is a report on a specific model's performance issues and outage, not a frontier release from a major lab.
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