How we test free AI tools
Source review: November 2026 · Complete re-verification pending · By the Best Free AI editors
A free plan is only as good as its small print, so the small print is what we check.
Official sources only
Every free-plan limit on Best Free AI comes from the maker's own pricing page, help centre or terms. Each tool page lists those sources at the bottom. A dated Limits verified label covers the displayed free-plan features and restrictions, not an independent performance benchmark.
No recycled numbers
Free allowances change constantly, and many lists keep repeating figures that are a year old. When a maker no longer publishes a number, we say so and leave the number out. Those tools carry a "some limits undisclosed" label.
What decides a ranking
- How much useful work the free plan allows, not how impressive the paid plan is
- Whether limits are published clearly
- Licence terms: whether free output can be used commercially
- Privacy defaults and where data is processed
Money never decides a ranking
Some tools pay referral commissions and some don't. Several of our top picks, including ChatGPT, Claude and DeepSeek, have no public referral program at all. See our affiliate disclosure.
How often we update
The edition date is the calendar date, not evidence that every plan was rechecked that day. A Limits verified label appears only when the displayed free-plan details have been checked against official sources. Other entries retain a source-review label and an explicit pending re-verification notice.