Microsoft is reportedly ditching OpenAI’s and Anthropic’s AI models in favor of its own to cut costs
Microsoft just made a $10B+ strategic bet. They're ditching OpenAI and Anthropic models — and building their own instead.
Why it matters
Microsoft's shift from third-party frontier models to proprietary MAI signals a major recalibration of AI economics: either the cost-per-inference math has fundamentally changed, or Microsoft believes it can undercut OpenAI/Anthropic on price while maintaining acceptable quality. This reshuffles the entire inference market and threatens OpenAI's enterprise moat.
The key facts
5 to knowMicrosoft transitioning from OpenAI and Anthropic advanced models to Microsoft AI (MAI) family
Primary driver: cost reduction
Microsoft publicly claims MAI is less sophisticated than frontier models, yet still deploying it at scale
Signals major shift in AI vendor economics and customer acceptance of 'good enough' models
Potential impact on OpenAI and Anthropic enterprise revenue and inference margins
Go to the source
SiliconAnglesiliconangle.com
Publisher excerpt: Microsoft Corp. is reportedly transitioning away from using OpenAI Group PBC’s and Anthropic PBC’s most advanced artificial intelligence models in favor of its own — increasingly leaning on the new Microsoft AI or MAI model family, despite publicly asserting that those models aren’t as…