How to read an AI tool's free tier: the limits that matter
A free tier is an evaluation budget, not a plan. Read four things: the unit of the limit, whether it resets or rolls over, whether commercial use is permitted, and which features are absent rather than merely limited. Published limits vary by orders of magnitude between vendors.
By the AI Alt Finder team
Free tiers exist to let you evaluate a substitute without paying twice. Used that way they are the most useful thing on a pricing page. Treated as a permanent plan they produce a predictable disappointment, usually about three weeks in.
Four questions turn a free tier into a usable evaluation budget.
What unit is the limit denominated in?
Free tiers count different things, and the unit tells you what the vendor considers expensive. Some published examples, all checked on 28 July 2026: ElevenLabs lists 10,000 credits per month on its free tier; GitHub Copilot's Free plan lists 2,000 completions per month plus 50 chat requests; Gemini CLI documents a Google Account tier of 1,000 model requests per day and 60 per minute.
Those are not comparable numbers, and no honest table can make them so. Convert each into your own unit: how many days of your actual work does it cover?
Does the allowance reset, roll over, or evaporate?
- Daily allowances suit evaluation, because you get a fresh budget every morning and can test across a fortnight.
- Monthly allowances suit projects, because you can spend the whole thing in one intense week.
- Non-rolling grants mean unused capacity is lost. If your work is irregular, a monthly grant that expires is worth less than its headline number suggests.
- Per-minute rate limits sit on top of everything else and are what you actually hit first during heavy testing.
Does the free tier permit commercial use?
Frequently not, and this is the difference between an evaluation and a business plan. Where a vendor lists a commercial licence as a paid-tier feature, output from the free tier is for testing, and shipping it is a licence breach regardless of quality.
The check is fast: find the word licence on the plan comparison and see which column it first appears in. If it is not in the free column, you have an evaluation budget rather than a free product.
Which features are missing rather than limited?
A smaller allowance is a limit; an absent feature is a wall. Export, integrations, custom domains, privacy controls and API access are commonly absent from free tiers rather than reduced, which means a free evaluation cannot test the thing that will decide your purchase.
If the feature that matters to you is missing from the free tier, buy one month of the relevant paid tier and evaluate properly. One month is cheaper than a year on the wrong tool.
Use the free tier as a stopwatch, not a seat
The most productive use of a free tier is a fixed evaluation window while your existing tool is still running. Give the candidate five working days of real tasks, note every time you reached back for the incumbent, and decide at the end of the week.
That produces a defensible answer. Drifting along on a free tier for two months produces only a vague feeling, and vague feelings are how people end up paying for three overlapping subscriptions.