Anthropic has signed the EU AI Act's Article 50(2) Code of Practice on Transparency of AI-Generated Content. Plans for marking AI-generated content and its limitations will be outlined, with updates and detailed technical guidance to follow.

8 days ago, while jogging, I asked Claude to solve the Riemann Hypothesis It didn’t. 1.5 days later, it proved >= 67% of the zeros are on the line (prev: 41.6%) Still not sure what that means, but some analytic number theorists seem excited - I’d tried once before in a single session and it went nowhere. Eight days ago, when I tried again, this was the opening message:The heavy lifting was recent ...

Claude attempted to address the Riemann hypothesis, a famous unsolved problem in mathematics dating back to 1859. The challenge reflects the ongoing exploration of Claude's mathematical capabilities and its potential contributions to scientific discovery.

Probing models like Claude and GPT with curated requests reveals insights into their training processes and knowledge cutoffs. Techniques such as "Incompressible Knowledge Probes" help estimate model parameters and analyze dataset mixtures by measuring token breakdowns.

Auto mode will be the default setting in Claude Code for Pro, Max, and Team plans starting August 14. This change allows for longer-running autonomous tasks and improves the detection of dangerous commands compared to manual review.

Claude Code v2.1.224 or later enables cross-session messaging on macOS and Linux without additional configuration. Users can discover reachable agents with ListAgents and send messages using the SendMessage tool to agents, subagents, and team members within a session.

Lost my phone at the office and spent 30 minutes turning the place over. Find My was disabled by MDM. Out of ideas, I asked Claude how I could find it. It suggested tracking the Bluetooth signal strength, then wrote me a meter in about a minute. I walked around watching the number climb. Found it. Apparently you can just make the tool you need now. Code: github.com/ben-z/findphone - We're at the b...

Anthropic's LLM Claude Mythos has discovered key-recovery attacks on HAWK, a post-quantum signature scheme candidate. While the attack is impractical for most versions of HAWK, it significantly reduces the security of the toy version HAWK-256, which has 64-bit security that is nearly breakable.

Using AI-generated responses as intermediaries in conversations can lead to inefficiencies and verbosity. Direct communication with AI tools like Claude allows for faster, more contextually controlled interactions.

Boris Cherny, head of Claude Code at Anthropic, emphasized the importance of challenging Claude with difficult tasks rather than focusing solely on prompt engineering. He discussed strategies for directing Claude to tackle complex assignments during an interview at Y Combinator’s Startup School 2026.