Anthropic Launches Claude Opus 4.5 With Chrome And Excel Integrations

At the end of September 2025, Anthropic launched Claude Sonnet 4.5.

Then, at the end of October 2025, Anthropic launched Claude Haiku 4.5.

Now, at the end of November 2025, Anthropic is launching Claude Opus 4.5.

As per the company, the new model is intelligent, efficient, and the best model in the world for coding, agents, and computer use.

In addition to this, it offers improvements to everyday tasks such as deep research and working with slides and spreadsheets. It is also state-of-the-art on tests of real-world software engineering, where it outperforms Google Gemini 3 Pro, OpenAI’s GPT-5.1-Codex-Max and GPT-5.1, and Anthropic’s own Sonnet 4.5 and Opus 4.1.

The new model also outperformed rival models in categories such as multilingual coding (SWE-bench), concerning behavior, and susceptibility to prompt-injection style attacks that included only very strong prompt injection attacks.

It’s the first model to score over 80% on SWE-Bench.

The previous best on the benchmark was Claude Sonnet 4.5’s 77.2%.

“Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes to how work gets done,” says Anthropic.


Opus 4.5 is now available on Anthropic’s apps, its API, and all three major cloud platforms—Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure. As such, the company has removed Opus-specific limits for Claude and Claude Code users, while Max and Team Premium users enjoy increased overall usage limits.

Anthropic says its new pricing model of $5/$25 per million tokens makes the model accessible to even more users, teams, and enterprises.

Additionally, the enterprise AI sector leader released updates to the Claude Developer Platform, Claude Code, and its consumer apps, while also bringing new tools for longer-running agents.

This includes introducing new ways to Claude in Excel, Chrome, and on desktop, which allows users to leverage Opus 4.5’s market-leading performance in using computers, spreadsheets, and handling long-running tasks. Even Claude’s Plan Mode builds more precise plans and executes more thoroughly.

Having first announced Claude for Excel last month, Anthropic is now expanding the availability of its beta access to all Max, Team, and Enterprise users.

“Claude Opus 4.5 delivers high-quality code and excels at powering heavy-duty agentic workflows with GitHub Copilot,” said Mario Rodriguez, GitHub’s Chief Product Officer. “Early testing shows it surpasses internal coding benchmarks while cutting token usage in half, and is especially well-suited for tasks like code migration and code refactoring.”


One week ago, on November 18, Anthropic announced it had entered into new strategic partnerships with Microsoft and NVIDIA.

NVIDIA will invest up to $10 billion, and Microsoft will pour $5 billion into Anthropic.

Anthropic and NVIDIA will collaborate on design and engineering, aiming to optimize Anthropic models for the best possible performance, efficiency, and TCO. NVIDIA will adjust its architectures to better suit Anthropic workloads, while Anthropic will use NVIDIA Grace Blackwell and Vera Rubin systems for an initial compute capacity of up to one gigawatt.

Meanwhile, Anthropic will purchase $30 billion of Azure compute capacity and could contract additional compute capacity up to one gigawatt. The AI company will also scale its Claude AI model on Microsoft Azure, powered by NVIDIA, broadening access to Claude for Azure enterprise customers.

The two will also expand their existing partnership to provide broader access to Claude for businesses, while Microsoft Foundry customers will gain access to Claude Sonnet 4.5, Claude Opus 4.1, Claude Haiku 4.5, and other frontier models.

On the flip side, Microsoft said it is committed to continuing access for Claude across Microsoft’s Copilot family, including GitHub Copilot, Microsoft 365 Copilot, and Copilot Studio.

Do you think Anthropic’s Claude Opus 4.5 will help the company secure a stronger foothold in the enterprise AI sector? Do you think it will help them

Let us know in the comments below!