# Methodology: how prices are checked Source: https://ai.geekindata.com/methodology Prices last checked: Nov 3, 2026 Page updated: Nov 3, 2026 License: CC BY 4.0, attribution GeekInData AI Every figure comes from the vendor's own page. - Re-checked: daily, by script - Shown: the date each figure was checked - Unpublished: marked Not published, never zero - Affiliation: none, no ads or affiliate links ## How figures are collected - Every price and limit comes from an official vendor page (pricing pages, help centers and API docs). Each table row links to its source. - A script re-reads the vendor pages once a day. A number is never overwritten with nothing; a parse that fails sanity checks (for example plans out of price order, or input above output price) is discarded; changes over 50% are applied but flagged for review. - Changes are proposed as a pull request and reviewed before they go live. - Prose (feature lists, limit descriptions) is edited by hand from the same pages. ## What the check labels mean *Status labels used on every page* | Label | Meaning | | --- | --- | | checked | The script read the figure from the vendor page on that date. | | checked by hand | The figure was verified manually on that date (for example free plans). | | last verified ; vendor page could not be re-checked automatically | The vendor blocks automated requests (for example HTTP 403). The figure is the last verified value and is re-checked by hand. | | no longer listed on the vendor's pricing page | The item disappeared from the vendor page. The last published rate is shown so you can see what it was. | | Not published | The vendor gives no number. This is not zero. | | Not stated | The vendor does not say whether a feature is included. This does not mean not included. | ## Plan names *How vendors name their plans* | Product | Sold as | | --- | --- | | Grok | The X Subscription (xAI), also bundles X app features | | Gemini | Google AI Plus, Pro and Ultra | | Older SuperGrok / X plans | Existing subscribers only | ## Currency and tax - Pages show US list prices in USD, excluding tax. - The site can convert currency and add estimated tax. - Those are estimates: local, country and app-store prices often differ. - Exchange rates: ECB reference rates via [Frankfurter](https://frankfurter.dev) (about 30 currencies) and [Exchange Rate API](https://www.exchangerate-api.com) (about 160 currencies), fetched live with a saved snapshot as fallback. - Tax: standard national consumer rates for digital services as of 2026-11-03, from [Tax Foundation: VAT rates in Europe (Jan 2026)](https://taxfoundation.org/data/all/eu/value-added-tax-vat-rates-europe/), [TaxID: VAT and GST rates by country 2026](https://www.taxid.dev/vat-rates), [VatInfo.org: VAT rates by country 2026](https://vatinfo.org/countries/). - US and Canadian tax depends on state or province, so set a custom rate. Business buyers with a valid VAT or GST number are often charged 0%. API prices are always shown excluding tax. ## How the plan finder ranks plans Each plan gets a **0-100 fit score**, a weighted average of: - Affordability - Usage within its vendor - Top-model access - Fit to your use cases - Context window Unpublished factors are left out, not scored as zero. It measures fit, not quality. ### What the score cannot tell you - Usage is only comparable inside one vendor. Across vendors, headroom is the plan's position on that vendor's own ladder, and you set how much it matters. - No quality or benchmark claims. The scores use published prices, usage multiples, model access, context and feature tables. - Unknown values (marked Not published or Not stated) are left out of a score. They are never counted as zero or as included. - Converted currency and tax follow the currency and tax rules above. ## Dates *Page dates* | Label | Meaning | | --- | --- | | Last checked | Latest check of the figures on the page | | Updated | Last time the facts on the page changed | ## Coverage *What is tracked* | | Covered | | --- | --- | | Vendors | ChatGPT, Claude, Gemini, Grok | | Plans | Consumer, team, API rates | | Not tracked | Microsoft Copilot, Perplexity, others | ## Independence and license - Not affiliated with OpenAI, Anthropic, Google, xAI or X. - No affiliate links or ads. - Data reuse: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), credit GeekInData AI ([open data](https://ai.geekindata.com/data.md), [licenses](https://ai.geekindata.com/licenses.md)). ## Sources [ChatGPT pricing page](https://chatgpt.com/pricing/) · [ChatGPT Pro tiers (Help Center)](https://help.openai.com/en/articles/9793128-about-chatgpt-pro-tiers) · [What is ChatGPT Go? (Help Center)](https://help.openai.com/en/articles/11989085-what-is-chatgpt-go) · [Introducing ChatGPT Go (OpenAI)](https://openai.com/index/introducing-chatgpt-go/) · [What is ChatGPT Plus? (Help Center)](https://help.openai.com/en/articles/6950777-what-is-chatgpt-plus) · [ChatGPT Business pricing](https://openai.com/business/pricing/) · [ChatGPT Business models and limits](https://help.openai.com/en/articles/12003714-chatgpt-business-models-and-limits) · [ChatGPT Work / Codex pricing and usage](https://learn.chatgpt.com/docs/pricing.md) · [OpenAI API pricing](https://platform.openai.com/docs/pricing) · [Claude pricing page](https://claude.com/pricing) · [What is the Team plan? (Claude Help Center)](https://support.claude.com/en/articles/9266767-what-is-the-team-plan) · [How is my Team plan bill calculated?](https://support.claude.com/en/articles/9267289-how-is-my-team-plan-bill-calculated) · [x.ai pricing page](https://x.ai/pricing) · [The X Subscription pricing (xAI docs)](https://docs.x.ai/x-subscription/pricing) · [X Subscription usage limits (xAI docs)](https://docs.x.ai/x-subscription/usage-limits) · [xAI API models and pricing](https://docs.x.ai/developers/models) · [Introducing The X Subscription (xAI)](https://x.ai/news/x-subscription) · [Grok Pricing 2026 (gravity.fast, third-party)](https://gravity.fast/blog/grok-pricing-explained/) · [Google AI plans (gemini.google)](https://gemini.google/subscriptions/) · [Gemini Apps limits and feature availability (Google Help)](https://support.google.com/gemini/answer/16275805) · [Gemini Enterprise editions (gemini.google, Business tab)](https://gemini.google/subscriptions/) · [Gemini Developer API pricing (Google AI for Developers)](https://ai.google.dev/gemini-api/docs/pricing)