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Cases
7 pages in this section.
Jul 11, 2026
A Claude user says recent behavior feels more pushy and less consistent
Incident
Refusal
Jul 08, 2026
Opinionated notes on AI-assisted testing and agentic coding
Incident
Hallucination
Jul 08, 2026
Rob Patro says Fable was not useful for a Rust rewrite task
Incident
Refusal
Jul 04, 2026
Agentic coding can fabricate convincing but false repros
Incident
Hallucination
Jul 03, 2026
Fable 5 backlash after return: lower benchmark scores, frequent refusals, and automatic fallback to Opus 4.8
Incident
Refusal
Jul 02, 2026
Anthropic Fable benchmark rerun shows a sharp drop after reopening
Incident
Refusal
Jul 02, 2026
Fable 5 reportedly still follows cybercrime prompts after re-release
Incident
Refusal
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