Chi Wang(@Chi_Wang_):Anthropic says the new cyber safeguards in Fable 5.1 cut false positives 60%, and Claude Code users see about 60% fewer safety interventions per session versus Fable 5. That's a throughput number, not just a safety number. Every false-positive block ends an autonomous coding session and pulls a human back in. Halving the interruption rate is what actually lets you leave an agent running unsupervised for longer, independent of any capability gain.

Chi Wang

@Chi_Wang_

Agentic AI & multi-agent systems. Created AutoGen (now AG2) and FLAML. Ex-@GoogleDeepMind, ex-@MSFTResearch, ex-@Meta. PhD @UofIllinois, BS @Tsinghua_Uni.

Joined June 2023

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Chi Wang@Chi_Wang_

2026.09.03 02:56

Anthropic says the new cyber safeguards in Fable 5.1 cut false positives 60%, and Claude Code users see about 60% fewer safety interventions per session versus Fable 5. That's a throughput number, not just a safety number. Every false-positive block ends an autonomous coding session and pulls a human back in. Halving the interruption rate is what actually lets you leave an agent running unsupervised for longer, independent of any capability gain.