At Microsoft Build, Microsoft became a frontier lab in its own right — shipping models that beat Claude Haiku and match Claude Opus inside the products it has historically used to distribute OpenAI. The same day, Anthropic filed to go public and expanded Mythos to NATO. This week’s Future Bytes News unpacks what that means for your vendor map and your security team.

This weeks highlights:

•Microsoft launched MAI Code 1 Flash and MAI Thinking 1 — its own models that beat Claude Haiku and match Claude Opus.

•Microsoft is now a frontier lab competing with the same labs it has historically distributed inside its own products.

•Anthropic filed a draft S-1 for an IPO — one week after closing a $65B funding round.

•Anthropic expanded Mythos to 200 organizations including NATO — 10,000 critical vulnerabilities surfaced in eight weeks of restricted access.

•OpenAI’s frontier models are now on AWS — removing the cloud barrier for shops that had defaulted to Anthropic.

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