MLWhiz Weekly AI/ML/Recsys Newsletter # 5

The week the AI industry's partnership era ended — and the consulting era began.

Story of the Week: The Great Unbundling

The Microsoft–OpenAI partnership came apart Sunday night. Revenue sharing, the AGI clause, and exclusivity all dissolved in a single restructuring.

Twenty-four hours later, Sam Altman and AWS CEO Matt Garman were on Stratechery announcing OpenAI models on Amazon Bedrock. The speed tells you the deal was pre-negotiated; only the Microsoft contract was holding it back.

The practical change for ML teams: GPT models now run natively on Bedrock alongside Claude, Llama, and Mistral. If you standardized on AWS but routed around for OpenAI access, that workaround is gone. If you picked Azure specifically for OpenAI, you have a real alternative for the first time. Multi-cloud routing for frontier models is table stakes now — expect inference prices to drop and cross-cloud model-parity to start mattering in vendor evaluations.

Then both labs made a stranger move. Anthropic and OpenAI launched enterprise consulting arms on the same day, aimed at different mar…