Anthropic charges its Pro subscribers roughly one-tenth of what the tokens they consume are actually worth, according to The Register. The flat-rate model worked when users ran brief, sporadic chat sessions: pay $20 a month, use as many words as you want. It stops working when a single subscriber points a coding agent at a codebase for six hours. Tokens are the units of text a language model processes; context windows are how much the model can hold in memory at once, and modern agents consume tokens in bulk while holding large contexts. The math that worked for a smart chatbot does not hold for a tireless pair programmer running in the background all day.
On April 21, Simon Willison, a developer and writer who live-documents AI oddities, noticed the checkbox for Claude Code had vanished from Anthropic's $20 Pro pricing page. He posted a screenshot. The internet noticed. By that evening, Anthropic had reversed the change. No announcement, no changelog entry. What the screenshot showed was a pricing structure that had stopped making mathematical sense.
Amol Avasare, Anthropic's head of growth, acknowledged the problem publicly as the backlash peaked. "When we launched Max a year ago, it did not include Claude Code, Cowork did not exist, and agents that run for hours were not a thing," he wrote on X. "Max was designed for heavy chat usage, that is it." Avasare specifically named OpenClaw, software that runs autonomous agents continuously, as a driver of the usage spike. Subscribers had shifted from short chat sessions to what he called "nearly always-on, multi-agent workflows" that loop for hours and spawn parallel subtasks, consuming tokens at a rate the $20 price was never built to cover.
GitHub faced the same structural problem one day earlier and did not blink. On April 20, GitHub paused new Copilot individual sign-ups and tightened usage limits, citing the same root cause: agentic workflows had "fundamentally changed Copilot's compute demands," in the words of Joe Binder, a vice president at Microsoft overseeing the product. Ed Zitron reported that GitHub's weekly infrastructure costs had roughly doubled since the start of 2026. Unlike Anthropic, GitHub did not reverse the change. No damage-control thread appeared.
The two largest AI coding assistant providers ran into the same economic wall 24 hours apart. One responded to pressure with a same-day reversal. One did not. Both are operating subscription plans designed for a usage pattern that no longer exists. The flat-rate model was set for a world where Claude and Copilot were chat assistants. They have become something else.
Metered billing, charging per unit of compute consumed rather than per seat, is the most straightforward fix. It removes the predictable pricing that makes a subscription feel safe. Avasare said changes are coming for existing subscribers, not just new sign-ups, and that users will hear about it directly from Anthropic. For developers who have built daily workflows around these tools, that promise of advance notice is the only concrete thing on offer right now.
The economics have not been fixed. They have been acknowledged.