Sign in - Claude What is Claude and how does it work? What should I use Claude for? How much does it cost to use? Sign in to Claude, Anthropic's AI assistant for problem solvers
Claude What is Claude and how does it work? Claude is an artificial intelligence, trained by Anthropic using Constitutional AI to be safe, accurate, and secure — the trusted assistant for you to do your best work
Introducing Claude - Anthropic We’re offering two versions of Claude today: Claude and Claude Instant Claude is a state-of-the-art high-performance model, while Claude Instant is a lighter, less expensive, and much faster option
Claude Opus 4. 6: Benchmarks, 1M Context Coding Guide (2026) Anthropic just released Claude Opus 4 6, the latest frontier AI model in the Claude family It’s a big upgrade over Opus 4 5 and probably the most agentic-focused LLM release from any lab this year Key upgrades: better agentic AI coding capabilities (plans more carefully, sustains longer tasks, catches its own mistakes), a 1M token context window (a first for Opus-class models), and 128K
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