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Microsoft will use Anthropic’s Claude to power “Copilot Cowork”

Microsoft is partnering with Anthropic to power its new agentic offering, Copilot Cowork. The AI world is abuzz with agents that can do your busywork for you, and Anthropic’s Claude Cowork is one of the most prominent and capable offerings in the field.

The tech giant wrote:

“Working closely with Anthropic, we have integrated the technology behind Claude Cowork into Microsoft 365 Copilot. It is this multi-model advantage that makes Copilot different. Your work is not limited by one brand of models.”

Microsoft listed some examples of how Copilot Cowork could help with common tasks such as rescheduling meetings, sending emails, researching companies, working with spreadsheets, and making presentations.

It’s worth stepping back to note how wild it is that Microsoft, the productivity software behemoth that has absolutely dominated the business world for decades, has had to turn to an AI startup to control those apps.

“Working closely with Anthropic, we have integrated the technology behind Claude Cowork into Microsoft 365 Copilot. It is this multi-model advantage that makes Copilot different. Your work is not limited by one brand of models.”

Microsoft listed some examples of how Copilot Cowork could help with common tasks such as rescheduling meetings, sending emails, researching companies, working with spreadsheets, and making presentations.

It’s worth stepping back to note how wild it is that Microsoft, the productivity software behemoth that has absolutely dominated the business world for decades, has had to turn to an AI startup to control those apps.

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OpenAI releases ChatGPT 5.5 — more complex “knowledge work” for fewer tokens

Right on the heels of Anthropic’s Claude Opus 4.7, OpenAI has also released the next incremental improvement to its flagship frontier model.

OpenAI says that ChatGPT 5.5 performs better on complex coding and data analysis tasks, and more carefully follows instructions, even when the instructions are vague.

Importantly, this gain in capability does not mean developers and companies have to shell out for more tokens (as is the case with Claude Opus 4.7) — the model uses fewer tokens that ChatGPT 5.4.

OpenAI says the new model has strengthened safeguards to ensure that the model’s strong cybersecurity capabilities aren’t used for malicious attacks.

Importantly, this gain in capability does not mean developers and companies have to shell out for more tokens (as is the case with Claude Opus 4.7) — the model uses fewer tokens that ChatGPT 5.4.

OpenAI says the new model has strengthened safeguards to ensure that the model’s strong cybersecurity capabilities aren’t used for malicious attacks.

🤖 75%
Jon Keegan

On Wednesday, Google CEO Sundar Pichai said in a blog post that AI is now writing 75% of new code at the company. This is up from 50% last fall. Pichai said all code is “approved by engineers.”

Google announced new TPU 8 chips today at its annual Cloud Next event. Pichai wrote:

“We’re now shifting to truly agentic workflows. Our engineers are orchestrating fully autonomous digital task forces, firing off agents and accomplishing incredible things.”

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