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TLDRocket
17 October 2026
Replit’s break with Anthropic is the day’s clearest signal that “model preference” is becoming a business metric, not a philosophical stance. CEO Amjad Masad says Replit is ending its partnership and will default to OpenAI’s ChatGPT for Replit Agent, while still letting enterprises pick Anthropic models. Even more telling: enterprise revenue rose from 2% last year to 15% this year, and Masad frames ChatGPT as the easiest path to scaling that customer mix. At the same time, Anthropic is reporting its own internal shift—Claude-based agents took over more day-to-day work, and junior hiring fell sharply, with the share of junior staff among new technical hires dropping from 27% to 9%.
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