Workbench

Anthropic releases Claude 2.1 with 200K context window, reduced hallucinations, and tool use beta

Anthropic released Claude 2.1, featuring an industry-first 200,000-token context window (roughly 500 pages), a claimed 2x reduction in hallucination rates versus Claude 2.0, and a new beta tool-use capability allowing Claude to orchestrate across developer-defined APIs and functions. The release also introduces system prompts and a revamped developer Workbench console. Claude 2.1 is available via API and powers claude.ai for both free and Pro tiers, with the 200K context window reserved for Pro users.