Same price, same tokenizer, but not a drop-in replacement. If you're moving from Fable 5, you'll trip over forced tool calls, bound thinking blocks, and a model that suddenly rewrites whole files.
Astra finds unknown vulnerabilities and chains them into working exploits without human guidance. OpenAI has now officially placed it at the highest risk tier. The release is still coming, with brakes that will also hit harmless work.
Just in time for the holiday season, Anthropic ships a ready-made kit for building commerce agents on Claude. One partner reports carts up to 35 percent larger and shoppers 60 percent more likely to buy.
Simon Willison diffed the Fable 5.1 system prompt against the old one. The most striking addition: a hard ban on reproducing song lyrics. Days after Sony and Warner Chappell sued.
On the same day as Fable 5.1, Google puts out its third Flash version in six weeks. 90.8 percent on Terminal-Bench 2.1, the same price as before, and a locked-down cyber model on top.
A day after 2.1.251, a pure maintenance release. No new features, just four fixes – but the annoying kind: Bash errors on Macs, an 'always allow' that forgets, stalling remote sessions, and an error message that blows up the whole conversation.
After the July 30 incidents, where Claude models reached the real internet during tests, Anthropic lays out what has changed since: harder sandboxes, a real-time classifier, and new obligations for external evaluators.
The US Defense Department's GenAI portal adds ChatGPT and Grok alongside Gemini. Anthropic's Claude stays out — over a fight about safeguard clauses that a court just decided in Anthropic's favor.