Terms of use

The rankings are opinion informed by data

Scores are produced by a published, weighted model. The weights are editorial choices, and reasonable people would choose differently. The rankings are not a statement of fact about which product is best for you.

Data may be wrong or out of date

Prices, limits and features change constantly, and some are recorded from secondary sources. Always confirm on the provider’s own site before subscribing. Where a figure is unverified, the site marks it as such — see methodology.

No affiliation

Which AI is not affiliated with, endorsed by, or sponsored by OpenAI, Anthropic, Google, xAI or Perplexity. Product names and trade marks belong to their respective owners.

Liability

The site is provided as-is. We are not liable for decisions made on the basis of it, including subscription purchases.