Microsoft just FIRED GPT-4 from Copilot.

Microsoft replaced GPT-4 in Copilot today. Their own benchmarks claim a win. Hacker News tested it — Polaris ties FREE open-source 35B.

20 million developers auto-migrated starting August. Microsoft saves $500M/year off OpenAI fees. You? Still paying token rates.

3 months of fallback to test what Polaris does on YOUR codebase. That's your window before forced migration.

If you ship production on Copilot — drop your stack in comments, I tell you if Polaris will hurt you.

SOURCES verified before publish:
- Microsoft.ai official MAI-Code-1-Flash announcement (HN #1 today)
- TechTimes coverage: techtimes.com/articles/317596
- Microsoft-OpenAI exclusive partnership formally ended (Build 2026)

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