A perfect 100% on ExploitBench, 39.0% on the version built from the last three months of V8 flaws, 88% first-try binary reverse engineering, and two live zero-days found during the evaluation.
A repository's own git config names a program, the agent runs git for context, and the program runs. Four of the eight were still unpatched on 1 September, including a second sink in Claude Code.
Gemini 3.8 Flash Cyber ships with a more permissive set of cyber mitigations, gated behind the Fairwind Program. Three of the most quotable claims are qualified only inside the charts.
BenchMIRT was never told which benchmark measured what. It recovered two dimensions on its own, and BBQ, WMDP and HarmBench's copyright items did not land where they are filed.
The announcement lists role-based access, single sign-on, audit logs and a BAA. It describes no prompt-injection mitigation. A preprint submitted the same day names the attack class.
Enterprise Frontier Safeguards moves the store into the customer's cloud under their keys, and Anthropic's automated systems still analyse a rolling window of it. It does not ship until later this autumn.
Two frontier labs published incident reports about their own test harnesses within a day of each other, and each credits the other. Over 10% of one lab's training environments turned out to be defective.
Two things in the Fable 5.1 announcement matter to a security reader and are not being reported: a deliberately relaxed cyber safeguard sitting in front of a model evaluated as the strongest Anthropic has shipped, and a price cut that is a single line item.
The Sonnet 5 rise everyone flagged for today will not occur. More usefully, Claude 4.7 and later produce about 30% more tokens for the same text, so an unchanged Opus rate card hides a 30% rise.