The Flat-Rate Model Cracks
GitHub paused new Copilot Pro signups and tightened limits on April 20, citing agentic workflows that exceed original plan assumptions. Two days later, Anthropic briefly moved Claude Code from its $20 Pro plan to its $100 Max plan before reversing under backlash. Both events reflect the same structural problem: per-seat flat-rate billing doesn't work when a single user session can run for hours.
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