Seeing as Anthropic refuse to actually be transparent about their subscription offerings (so much for their constitution and valuing transparency), I’ve been building a calibration model for Claude’s weekly usage quota system - the 7-day utilization percentage that governs rate limiting. After two weeks of capturing API traffic and correlating token counts with the rate limit headers, I’ve established that the quota tracks dollar cost of API usage, not raw token counts. I’ve got solid numbers for Max 20x - two independent weekly windows that agree within 4%. What I don’t have is ground-truth data for Pro and Max 5x plans to verify the multiplier ratios across tiers. What I’m building: A formula that tells you exactly how many tokens (or dollars) equal 1% of your weekly quota, broken down by model and plan tier. Right now I can predict Max 20x utilization within ~1% accuracy. I want to extend that to all plans. What I need from you: After any API call or Claude Code session, check the response headers (browser devtools Network tab for claude.ai, or your HTTP client for API). I need these values:
anthropic-ratelimit-unified-7d-utilization (a decimal like 0.42)anthropic-ratelimit-unified-5h-utilizationanthropic-ratelimit-unified-fallback-percentage (if present) The model used (e.g. claude-sonnet-4-6) Token counts from the response: input_tokens, output_tokens, cache_creation_input_tokens, cache_read_input_tokens Your plan tier (Pro, Max 5x, or Max 20x) None of this contains your messages, API key, or any personal content. It’s just numbers. What I’ll release when this is done: A Github containing: lightweight open-source Python script for ongoing self-monitoring The full methodology showing how I derived the formula The formula itself: tokens and dollars per 1% for every plan tier and model combination If you’re on Pro or Max 5x especially, your data points are the missing piece. Max 20x users are welcome too - more data improves confidence. Drop your numbers in the comments or DM me. Happy to answer questions about the methodology. submitted by /u/Dry-Divide3156
Originally posted by u/Dry-Divide3156 on r/ClaudeCode