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Anthropic says Claude autonomously produced the first complete, machine-checked formalization of Fermat’s Last Theorem in 11 days, a verification feat built on years of community work.
Anthropic opened a research preview of the Model Hardware Standard, letting AI agents operate lab and factory equipment like microscopes and robotic arms in its first physical-world product.
There’s no single best Claude model — the right choice depends on how much intelligence, speed, and cost your task requires. Learn when to use Haiku, Sonnet, Opus, or Fable, and how effort settings and model routing can help you balance performance and cost.
Anthropic’s ongoing system-prompt changelog now documents instructions for Claude Fable 5 and Opus 5, revealing how the company steers agentic behavior in its newest models.
Investors expect Anthropic to target a valuation of $2 trillion or more in an October IPO, which would be the largest listing in history, driven by surging revenue.
Anthropic is in advanced talks to acquire Israeli AI infrastructure startup Decart at a valuation of approximately $6 billion. The deal would be Anthropic’s largest acquisition to date and would add inference optimization and real-time video generation capabilities ahead of a planned public offering.
An unreleased Claude model raised a longstanding lower bound tied to the Riemann hypothesis from 41.6% to 67.2%, a validated result that stops well short of solving the problem.
Meta has launched Muse Code, a terminal coding agent powered by Muse Spark 1.2, targeting long-running software projects and established rivals Codex and Claude Code.
Anthropic has launched the Anthropic Economic Index connector for Claude, allowing users to query real-world AI usage data directly through conversation. The connector is available now in claude.ai and works across all Claude models with no installation required.
A beginner’s guide to Model Context Protocol (MCP) – an open standard that connects AI models to external tools and data sources, forming the backbone of modern AI agents.
A federal judge gave final approval to Anthropic’s $1.5 billion settlement with authors over pirated books used to train Claude, the largest copyright recovery on record.
Anthropic’s new ad “There’s hope in hard questions” drew mockery, including from Sam Altman, for pairing bleak imagery like a cemetery with questions about whether AI can be trusted.
Microsoft is coaching its sales force to argue its AI products beat OpenAI’s and Anthropic’s on cost, security and completeness, turning on the partners whose models it long relied on.
Anthropic has launched Claude for Teachers, giving verified U.S. K-12 educators free access to premium Claude features, a library of teaching skills, and connections to standards-aligned curricula across all 50 states.
Anthropic has committed $10 million CAD to Canadian research institutions to fund responsible AI development, announcing partnerships with eight universities and institutes including Mila, the Vector Institute, and Amii.