---
title: "Microsoft Openly Competes with OpenAI and Anthropic as Never Before, Pivots to In-House AI"
source: "TechCrunch：AI（RSS）"
source_tier: "t2"
url: "https://techcrunch.com/2026/07/29/microsoft-is-openly-competing-with-openai-anthropic-more-than-ever/"
permalink: "https://feed.astralor.com/items/itm_98d58a46009d50a3c793a873"
published: "2026-07-30T00:21:06.000Z"
score: 79
channel: "ai"
tags: ["Anthropic","Mythos","OpenAI","Microsoft","In-house AI models"]
---

# Microsoft Openly Competes with OpenAI and Anthropic as Never Before, Pivots to In-House AI

## AI commentary

> This marks a pivotal moment in AI: Microsoft's shift from 'making OpenAI shine' to 'entering the arena' shows that AI models are no longer just tools but nuclear weapons that cloud giants must control. For investors and AI companies, it's time to reassess valuations and competitive dynamics.

## At a glance

Microsoft made it clear to Wall Street on Wednesday that it is directly competing with OpenAI and Anthropic, unveiling its own in-house AI models, tool suites, and even a competitor to Mythos. This marks a decisive shift from collaborator to independent contender in the AI race, planning sustained growth via proprietary products. The move could reshape the AI landscape, affecting existing partnerships and investment flows.

## Key points

- Microsoft launched its own AI models and a Mythos competitor, signaling a strategic departure from sole reliance on OpenAI.
- It conveyed to Wall Street a message of independent growth, reducing dependency on third-party models.
- This intensifies direct competition at the large model level, potentially impacting the deep collaboration between Microsoft and OpenAI.

## Full text

Microsoft pitched its own homegrown AI models, harnesses, and even a Mythos competitor on Wednesday, telling Wall Street it plans for continued growth.

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