🛠 Claude Max '20x' applies to a 5-hour window, not the week
Author SataEric (@SataEricUX) broke down the Claude Max pricing: the $100/month plan promises '5x Pro limits', and the $200/month plan promises '20x', making the overpayment look like a fourfold increase in volume. According to his calculations, the '20x' multiplier only works within a 5-hour window, and the weekly limit for the $200 plan is about 10x the base Pro, meaning roughly twice as much as the $100 plan. Thibo Sottiaux (@thsottiaux), head of Codex and ChatGPT at OpenAI, responded that in Codex, both '20X' refer specifically to weekly limits, there are no 5-hour limits on OpenAI's Pro plans, and Pro 20X provides 'quite precisely' 20 times the volume compared to Plus. The official claude.com/pricing page advertises 'Max 5x' and 'Max 20x' ('5x or 20x more usage than Pro*'), without specifying which window the multiplier applies to. The exchange went viral: Sottiaux's response has about 7.2k likes, and the original tweet has over 6.2k.
🌍 The competition in agent subscriptions between Anthropic and OpenAI has shifted to pricing transparency: the head of Codex is publicly using the dispute over Claude's limit labeling to contrast it with OpenAI's model, where '20X' is tied to the weekly limit and 5-hour windows do not exist on Pro plans. Multipliers like '5x'/'20x' without specifying the measurement window become a marketing risk and material for public vendor comparisons.
👤 When choosing between Claude Max 20x ($200/month) and Codex Pro 20X, the actual usage volume can differ by orders of magnitude: the same multiplier numbers are tied to different windows, and Claude's '20x' works within a 5-hour slot. Before upgrading, check the progress of weekly limits in the Usage tab, not the number in the plan name; SataEric's calculations are an estimate by one user, so verify them against your actual usage.
Source 1: https://x.com/SataEricUX/status/2094121392229028236 Source 2: https://x.com/thsottiaux/status/2094254532020818191