Methodology
Every AI tool on this site receives a score out of 10, built from four weighted criteria: capabilities at 40%, quality of output at 30%, ease of use at 15%, and price & limits at 15%. We test every tool ourselves using its actual paid and free tiers, rather than relying on a vendor's own benchmark claims, since a benchmark chosen and run by the company selling the product is rarely the same as how a tool performs on tasks you actually care about.
How We Score Capabilities (40%)
Capabilities is the heaviest-weighted criterion because it answers the most basic question: can this tool actually do what it claims? We test the specific features a tool advertises, whether that is code generation accuracy, image fidelity, video length and quality, or how well a chatbot handles multi-turn context, against a standard set of tasks we run on every comparable tool in that category. A tool that has an impressive feature list on its pricing page but falls short in practice loses points here, since a feature that does not work reliably does not count for much.
How We Score Quality of Output (30%)
Capabilities tells you what a tool can attempt; quality of output tells you how good the results actually are once you use it regularly. We look at consistency across repeated runs of similar prompts, not just a single best-case output, since a tool that occasionally produces a great result but frequently produces a mediocre one is a different product from one that reliably delivers good work. For writing and coding tools specifically, we weigh factual accuracy and code correctness heavily; for image and video tools, we weigh visual coherence and prompt adherence.
How We Score Ease of Use (15%)
A powerful tool that takes an hour to configure before it produces anything useful loses real-world value, so we score how quickly a new user can get from signup to a genuinely useful result. This covers onboarding friction, interface clarity, and whether a tool's advanced features are discoverable or buried behind a settings menu nobody finds. Ease of use is weighted lower than capabilities and quality because a slightly clunkier interface around a genuinely better model is usually still the better choice, but it matters enough to break ties between similarly capable tools.
How We Score Price & Limits (15%)
Price scoring looks at both the free tier, when one exists, and the paid tiers' actual usage limits, not just the advertised starting price. A tool that looks cheap on its pricing page but throttles you to a handful of generations per day is not actually a good value once you account for what you can realistically get done. We weigh this against what a comparable capability and quality tier costs elsewhere in the same category, since ten dollars a month is a very different value proposition for a tool that can replace a full workflow versus one that only handles a narrow task.
Qualitative Factors
Beyond the four weighted criteria, we also consider safety behavior, platform support (web, desktop, mobile, API), and support quality when writing each tool's verdict, even though these do not carry a fixed percentage weight. A tool with a borderline safety record or no way to reach support when something breaks gets called out explicitly in the review text, even if it scores well numerically on the four main criteria.
Review Update Policy
AI tools ship new models and pricing changes far more often than most software categories, sometimes multiple times in a single month for the most actively developed products. We re-test continuously throughout the year and refresh a tool's score whenever a vendor ships a major model update, adds or removes a significant feature, or changes pricing, rather than on a fixed annual schedule. If a score on this site looks unusually high or low compared to what you have read elsewhere, check the "updated" date on the review; a large gap almost always means one of us is working from more current information than the other.
Why Independent Testing Matters
AI vendor marketing pages are optimized to sell, and benchmark charts on a company's own website are almost always the most flattering possible framing of their own results under conditions they chose. That is not necessarily dishonest, but it is not independent either. Repeatable, hands-on testing against the same criteria every time, combined with continuous re-testing as models change, is the only way we know of to compare tools fairly against each other rather than against each vendor's own marketing copy.