CAISI

4 items · Capability 1 · Policy 3 · all entities

The White House asks OpenAI and Anthropic to hold their newest models back from UK testers

Politico reported that the White House asked OpenAI and Anthropic to withhold their newest models from the UK AI Security Institute until a US-led security review is complete, with Anthropic's Claude Mythos 5.1 restricted to US organisations and OpenAI's GPT-6 Astra also named; OpenAI did not comment. AISI director Henry de Zoete acknowledged in a letter to Parliament that the institute lacked access to Anthropic's latest model. The request follows President Trump's September 22 statement that "the United States totally rejects any attempt to construct a globalist scheme to control artificial intelligence." The US counterpart body, CAISI, has had no permanent director since Chris Fall left in July 2026 and is run by acting head Arvind Raman.

Reported by pressPolitico (via Forkast) ↗ ·

A bipartisan bill would have CAISI monitor how AI systems build the next generation of AI

Reps. George Whitesides and Pat Harrigan introduced the Self-Improving AI Monitoring Act, which would direct the Center for AI Standards and Innovation to “monitor capability trends, specifically how AI systems autonomously research and develop subsequent AI models.” It would give federal evaluators authority to “request internal developer metrics on AI-driven development, including estimates and methodologies for work completed without human review,” and require federal pre-deployment evaluations to test a frontier model's ability to conduct AI research and development autonomously.

On the recordOffice of Rep. George Whitesides ↗ ·

UK AISI and US CAISI jointly assess Kimi K3 — safeguards did not stop it attempting offensive cyber

A joint preliminary assessment puts Moonshot's open-weight Kimi K3 at 32% on ExploitBench against GLM-5.2's 24%, still short of US frontier models: it achieved arbitrary code execution on 0 of 41 samples versus 20 of 41, and reached step 17 of the 32-step "The Last Ones" attack path versus 28.5. The institutes state plainly that Kimi K3's safeguards did not prevent it from attempting exploit development or offensive cyber operations during the evaluations.

On the recordUK AI Security Institute / CAISI ↗ ·

NIST director Arvind Raman named acting CAISI head after Fall's exit

NIST Director Arvind Raman was named acting director of the Center for AI Standards and Innovation after Chris Fall resigned on July 20 — about three months in, and after a predecessor who lasted under a week. Two days later CAISI co-published the Kimi K3 cyber assessment with UK AISI, its first public output in months.

Reported by pressNextgov/FCW ↗ ·