The limits have always been opaque and you never know when they change.

I started building an open-source local proxy that logs every rate-limit header Claude Code sends.

I am using it to track and get a better sense of the 5h and 7d weekly limits.

Some initial data from 11 observed 5h sessions on Max 20x: - 5h budget: roughly $120–$280 per window - 7d budget: roughly $1,300–$1,900 - Separate Sonnet-only 7d budget at ~$150 - 95% of tokens are cache reads. They barely move the meter.

It’s open source so more people can run it and we can figure out the real numbers.

https://github.com/abhishekray07/claude-meter

I guess we may be on the cusp of seeing how much AI usage is really going to cost us when demand goes up and the subsidies disappear.

Also not great that they communicate this now, since people have been complaining about sudden and strange usage spikes for a few days with no response from Anthropic.

Makes me incandescent that OpenAI would have these different rate limits that apply to you, but they can do whatever they want with your limit. It's just incredibly hostile treatment & incredibly incredibly rude.

Spend 1.99 and get a chest full of Anthropic emeralds, that you can redemem for Claude Chests, and a chance at winning a million more tokens.

Or watch this 3 minute ad, for 1000 tokens.

I did not think this day would come this soon, but I assure you that anthropic has no moat.