Google launchGemini 3 ProFollowing suit, AI startup unicorn Anthropic officially announced the latest version of its flagship model.Opus 4.5.
This update targets office productivity scenarios, with a particular focus on deep integration with Microsoft Excel. Anthropic emphasizes that the new system delivers state-of-the-art (SOTA) performance in coding, computer use, and office tasks.
Claude for Excel: Sidebar integration boosts efficiency by 15%
One of the biggest highlights of this update is the full rollout of the "Claude for Excel" feature. This tool integrates chatbots directly into the Microsoft Excel sidebar and is currently available to all Max, Team, and Enterprise editions.
Functionally, it not only supports pivot tables and chart creation, but also has a built-in file upload function. Anthropic points out that, based on feedback from early testers, using this tool resulted in a 20% improvement in accuracy and a 15% increase in efficiency during internal evaluations.
Addressing the pain point of amnesia, "Unlimited Chat" makes its debut.
To address the "goldfish brain" problem often encountered by AI chatbots, Anthropic has launched a new feature called "infinite chat".
For paid users, Claude will no longer be limited by traditional context window errors, maintaining consistency in its memory across files and long conversations. Anthropic stated that this is one of the most frequently requested features by users.
In addition, the browser extension functionality of Claude for Chrome is now available to all Max version users.
Enhanced proxy workflow, with security superior to Gemini 3 Pro.
In terms of performance, Opus 4.5 has improved on agency workflows, and the new model is better at self-correcting processes.
More importantly, Anthropic states that Opus 4.5 is its "most secure model to date." According to official assessments, this model even surpasses competitor Google's Gemini 3 Pro in its performance in rejecting "prompt injection" type attacks.
Release schedule
Anthropic Opus 4.5 is now available through its entire suite of apps and APIs. For developers, the new model's API pricing starts at $5 per million tokens.
