Anthropic resets Claude Code rate limits after prompt caching bug burned usage faster than normal

If you noticed your Claude Code usage limits draining unusually fast over the past day or so, you’re not imagining things. Anthropic has confirmed a bug in prompt caching that caused rate limits to be consumed much quicker than they should have been.

Thariq, a member of technical staff at Anthropic, posted on X that the company has reset rate limits for all Claude Code users. He wrote, “Yesterday we rolled out a bug with prompt caching that caused usage limits to be consumed faster than normal. This is hotfixed in 2.1.62.”

The fix is already live. If you’re still on an older version, you’ll need to update to Claude Code 2.1.62 to get the corrected behavior. Those who blew through their weekly limits because of the bug have been given a fresh reset.

Prompt caching is a core part of how Claude Code works. It lets the tool skip re-processing repeated content at the start of each request, cutting down token usage and keeping long coding sessions feasible within plan limits.

Thariq has talked about this in depth before, calling it “everything” for agentic tools like Claude Code. A regression in caching means the system starts treating cached content as fresh input, racking up token usage with every request.

Over on Reddit, users in r/ClaudeAI started reporting that their weekly reset day had shifted, with some seeing their cycle jump a full day forward. One user had 72% usage left with a Saturday reset, and woke up to find their limits back near zero, but resetting on Friday instead.

The blanket reset helped heavy users the most. Someone who burned through 90% of their budget early in the week got a full reset and seven new days.

But a user close to their natural Saturday reset got almost nothing extra out of it and effectively lost their remaining quota for that cycle. One Reddit user broke down the math, showing they lost access to roughly 63% of their remaining subscription budget because the reset shifted their weekly cycle date.

For now, the official guidance is simple: upgrade to 2.1.62 and your limits should behave normally going forward.

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