AISub / Blog
Guides to ChatGPT, Claude, Gemini, Perplexity, and Grok subscriptions, billing, and regional prices to help you choose and manage AI subscriptions.
21 / Subscriptions and usage limits
As of October 31, 2026: Anthropic's weekly limit rules for Claude Pro, Max, and Ultra, SemiAnalysis's third-party measurement, Anthropic staff responses, a retracted user report, and how to check usage in Settings > Usage and Claude Code.
Read article22 / Subscriptions and usage limits
As of November 9, 2026, compare ChatGPT Plus ($20) and Pro 100 ($100) by official price, Work and Codex usage rules (no five-hour limit on Pro 100, which OpenAI's Tibo says gets 10x Plus usage), GPT-6.1 Terra availability, monthly API credits, context windows, and App Store prices AISub collected in 169 regions.
Read article23 / Subscription price comparison
As of October 31, 2026, compare Claude Pro and ChatGPT Plus by official price and annual billing, five-hour and weekly usage rules, Claude Code and Codex, options after hitting a limit, context windows, and App Store prices AISub collected in 166 regions.
Read article24 / Subscriptions and usage limits
Based on OpenAI's Help Center and Codex pricing page (checked October 31, 2026): what you can do after running out of Codex or ChatGPT Work usage, including five-hour and weekly allowances by plan, the three kinds of resets, when a banked reset can be used, paid instant reset rules, and how credits are billed and expire.
Read article25 / Subscriptions and APIs
Since October 29, 2026, eligible ChatGPT Pro and Business subscriptions can claim API credits. Based on OpenAI's Help Center and API docs, here are the amounts per plan, the Business formula, how to claim, what they cover, and when they expire.
Read article26 / Subscription price comparison
Checked November 7, 2026: compare Claude Pro, Max, and Ultra web prices, weekly allowances, verification, and API credits, with dated historical App Store prices.
Read article27 / Subscription price comparison
AISub's first monthly AI subscription price report: as of October 30, 2026, AISub has recorded no local-price changes since September 29. Why reported App Store increases in Türkiye, Egypt, and Nigeria and ChatGPT Go cuts in Sweden and Malaysia cannot be confirmed as October changes, plus current prices.
Read article28 / GPT-6.1 Terra and model selection
GPT-6.1 Terra launched in October 2026. This guide covers its official API pricing, model ID, context limits, vision and computer-use capabilities, and how it compares with GPT-6.1 Sol, GPT-6 Astra, and Luna.
Read article29 / Subscriptions and usage limits
On October 29, 2026, OpenAI canceled the Pro 200 allowance reduction announced in September and doubled the Work and Codex allowance on Pro 100 and Pro 500. Here is how it takes effect, what it costs, and how to check your account.
Read article30 / Subscription price comparison
How purchase channels, taxes, currencies, exchange rates, availability, and platform costs create regional differences in AI subscription prices.
Read articleWebsite prices cover ChatGPT. App Store prices cover ChatGPT, Claude, Gemini, Perplexity and Grok. Google Play is not covered. A listed price does not establish purchase eligibility.
ChatGPT
Claude
Gemini
Perplexity
Grok