Anthropic's Opus 4.5 model is here to conquer Microsoft Excel (www.engadget.com)

Anthropic released Opus 4.5, an incremental but focused upgrade to its Claude family that sharpens coding, desktop and office-task performance and expands tooling. The rollout makes the Claude for Chrome extension available to all Max users, introduces "infinite chat" (a paid feature that avoids context-window truncation so conversations and file-centric workflows remain consistent), and launches Claude for Excel broadly to Max, Team and Enterprise customers with built-in support for pivot tables, charts and file uploads. Anthropic says Opus 4.5 is available across its apps and API (developer pricing from $5 per million tokens). Technically, Anthropic claims measurable wins: internal Excel evaluations showed about a 20% accuracy uplift and 15% efficiency gains, and the model improves agentic workflows by better refining its own multi-step processes. The company also rates Opus 4.5 as its safest model yet, asserting stronger resistance to prompt-injection attacks and even outperforming Google’s Gemini 3 Pro on safety tests (per Anthropic’s benchmarks). For practitioners, the update emphasizes long-context reliability and tighter office-app integration—useful for BI, automation and multi-file projects—while keeping an eye on how vendor-reported safety and accuracy claims hold up in independent tests.