RT Claude (@claudeai)Introducing Claude Opus 4.6. Our smartest model got an upgrade.Opus 4.6 plans more carefully, sustains agentic tasks for longer, operates reliably in massive codebases, and catches its own mistakes.It’s also our first Opus-class model with 1M token context in beta. https://t.co/L1iQyRgT9x ...

RT Claude (@claudeai)Ads are coming to AI. But not to Claude. Keep thinking. https://t.co/n2yECeBWyT ...

RT Claude (@claudeai)Claude is built to be a genuinely helpful assistant for work and for deep thinking.Advertising would be incompatible with that vision.Read why Claude will remain ad-free: https://t.co/Dr8FOJxINC ...

Apple's Xcode now has direct integration with the Claude Agent SDK, giving developers the full functionality of Claude Code for building on Apple platforms, from iPhone to Mac to Apple Vision Pro.Read more: https://t.co/fyZ10bhkN3 ...

It also suggests that alignment work should focus more on reward hacking and goal misgeneralization during training, and less on preventing the relentless pursuit of a goal the model was not trained on.Read the full paper: https://t.co/rQ7921uGrk ...

This research was led by Alex Hägele @haeggee under the supervision of Jascha Sohl-Dickstein @jaschasd through the Anthropic Fellows Program. ...

New Anthropic Fellows research: How does misalignment scale with model intelligence and task complexity?When advanced AI fails, will it do so by pursuing the wrong goals? Or will it fail unpredictably and incoherently—like a "hot mess?"Read more: https://t.co/xzRSoJg43j ...

Engineers at @NASAJPL used Claude to plot out the route for Perseverance to navigate an approximately four-hundred-meter path on the Martian surface.Read the full story on our microsite, and see real imagery and footage from Claude’s drive: https://t.co/KHwvxPN0eU ...

On December 8, the Perseverance rover safely trundled across the surface of Mars.This was the first AI-planned drive on another planet. And it was planned by Claude. https://t.co/kVbdKWibuP ...

These results have broader implications—on how to design AI products that facilitate learning, and how workplaces should approach AI policies.As we also continue to release more capable AI tools, we’re continuing to study their impact on work—at Anthropic, and more broadly. ...