Countless.dev

Countless.dev is a free web tool for comparing large language models on price and capabilities across providers in one place. Its model table lists each model's provider, supported modalities, context window, maximum output tokens and prompt and completion prices per million tokens, covering vendors such as OpenAI, Anthropic and Google alongside others. It is useful for developers and technical buyers choosing a model for an application, where cost and limits matter as much as quality. Beyond the main table the site offers a pricing calculator for estimating spend, a versus view for putting two models side by side, a comparison view, a Pareto frontier chart that shows which models give the best trade off between price and performance, and a benchmarks section. The tool is free to use with no account or paid tier; the site describes itself as a free AI model comparison tool. The listing data loads in the browser, so the tables require JavaScript to display. As with any aggregated price list, figures should be confirmed against the provider's own pricing page before committing to a budget.