# Models.dev vs PromptBase Models.dev records 200,451 monthly visits with -3.9% month-over-month growth and Free pricing. PromptBase records 538,129 monthly visits with -1.8% growth and Paid pricing. | Metric | [Models.dev](https://openaitools.app/tool/models-dev) | [PromptBase](https://openaitools.app/tool/promptbase) | | :--- | :--- | :--- | | Website URL | https://models.dev | https://promptbase.com | | Categories | AI Models, AI API, Open Source AI Models, AI Tools Directory | AI Prompt Generator, Prompt Engineering, AI App Builder, AI Image Generator | | Pricing Model | Free | Paid | | Monthly Visits | 200,451 | 538,129 | | MoM Growth Rate | -3.9% | -1.8% | | Primary Market | China | United States | | Direct Visits | 136,316 | 256,487 | | Review Score | 4.4 | 3.7 | | Saved Count | 0 | 8 | | Supported Platforms | Website | Website | ## Models.dev Models.dev exists to answer a very practical developer question: which model should I use, and what will it cost? The site organises every entry under a canonical identifier in the form provider/model, so the same model served by several providers can be compared directly rather than guessed at. Columns cover context window, maximum output, whether input and output are supported, reasoning, tool calling, structured output, temperature control, open versus closed weights, price per million tokens, and release and update dates. Because model releases move fast, the catalogue is built to stay current, with sortable and searchable tables that let you scan by lab or provider and filter down to what matters. Entries include both closed flagship models and open-weight alternatives, making it useful for cost planning as well as capability research. The project is open source and free to use, and it is intended to be consumed programmatically. Developers can pull the catalogue into their own tooling through a JSON API or a type-safe SDK, which makes it a practical backend for dashboards, routing logic, or internal cost calculators rather than just a reference page to browse. **Pricing & Plans:** Models.dev is free and open source. It is a reference database, so the prices it lists are the per-million-token rates charged by the model providers themselves, not a fee for using the site. - **Canonical model identifiers:** Every model uses a consistent provider/model format so the same model across providers can be compared directly. - **Specification comparison:** Side-by-side context window, output limit, reasoning, tool calling, structured output, and temperature support. - **Pricing transparency:** Input and output prices per million tokens listed alongside release and update dates. - **Open and closed models:** Covers closed flagship APIs and open-weight models from many labs in one sortable catalogue. - **Developer access:** Consume the catalogue through a JSON API or a type-safe SDK for your own tools and dashboards. **Strengths:** Free and open source with no account required; Consistent canonical identifiers make cross-provider comparison reliable; Covers pricing, limits, and capabilities in one sortable table; Available as a JSON API and type-safe SDK for programmatic use **Limitations:** It is a reference catalogue, not an inference or hosting service; Data quality depends on community and maintainer updates keeping pace with releases; Interface is aimed at developers and offers little guidance for non-technical users [Profile (Markdown)](https://openaitools.app/tool/models-dev.md) ## PromptBase PromptBase occupies the 'prompt layer' of the AI stack. As generative models became widely available, the hard part shifted from access to knowing what to type, and PromptBase turned that gap into a marketplace. Buyers get tested wording that reliably produces a particular result; sellers get paid for prompt engineering work they would otherwise give away. The catalogue is broad rather than deep in any single niche. There are categories for art styles, portraits, product shots, logos, icons, apparel designs, marketing copy and even prompts intended to help build small apps or landing pages. Each listing is tied to a specific model family, which matters because a prompt tuned for one image model often behaves differently in another. As a marketplace, PromptBase's value depends on its community. Sellers are incentivised by revenue share, which keeps fresh prompts coming, while buyers rely on sample images and seller reputation to judge quality before purchasing. The model is paid rather than free, and the site runs behind standard bot protection. **Pricing & Plans:** Paid marketplace. Most prompts are sold individually at low per-item prices set by their creators, with subscription options available for buyers who want ongoing access or credits. Pricing is not disclosed on the public page and may vary by listing. - **Curated prompt catalogue:** Thousands of ready-to-use prompts organised by model and by output type, from illustration styles to marketing copy. - **Model-specific sections:** Listings are grouped by the model they were built for, so you can filter to the tool you actually use. - **Sample output previews:** Each prompt is shown with example outputs, making it easy to judge the style before spending anything. - **Creator seller programme:** Anyone can upload prompts for sale and earn revenue share on every copy sold. - **Pay-per-prompt or subscribe:** Low per-prompt pricing plus buyer subscription options cover both occasional and high-volume users. **Strengths:** Saves time you would otherwise spend on trial-and-error prompt writing.; Sample images make quality easier to judge before buying.; Organised by model, so findings map to the tools you already use.; Creators can monetise prompt work directly. **Limitations:** There is no free tier for buying prompts - you pay per prompt or subscribe.; Quality and usefulness vary between sellers, so results depend on the individual listing.; A prompt that works well in one model is not guaranteed to behave identically elsewhere.; Popular prompts are widely sold, so exclusivity is limited. [Profile (Markdown)](https://openaitools.app/tool/promptbase.md) ## Frequently Asked Questions ### How do Models.dev and PromptBase compare in monthly traffic? Models.dev has 200,451 monthly visits, while PromptBase has 538,129. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Models.dev has a month-over-month growth rate of -3.9%; PromptBase has -1.8%. ### How does pricing compare? Models.dev: Free. Models.dev is free and open source. It is a reference database, so the prices it lists are the per-million-token rates charged by the model providers themselves, not a fee for using the site. PromptBase: Paid. Paid marketplace. Most prompts are sold individually at low per-item prices set by their creators, with subscription options available for buyers who want ongoing access or credits. Pricing is not disclosed on the public page and may vary by listing. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [FlowGPT](https://openaitools.app/tool/flowgpt) | 1,761,490 | +13.3% | Freemium | Largely free community-driven prompt sharing and instant chatting, rather than a transactional marketplace. | [.md](https://openaitools.app/tool/flowgpt.md) | | 2 | [PromptHero](https://openaitools.app/tool/prompthero) | 1,044,654 | -2.4% | Freemium | Massive free prompt search engine and discovery platform, but lacks PromptBase's direct creator monetization marketplace. | [.md](https://openaitools.app/tool/prompthero.md) | | 3 | [Stork](https://openaitools.app/tool/stork) | 201,544 | +2.3% | Free | Includes model pricing trackers and developer news alongside tools directories, but less focused on raw API specs. | [.md](https://openaitools.app/tool/stork.md) | | 4 | [Midlibrary](https://openaitools.app/tool/midlibrary-io) | 118,712 | -13.4% | Freemium, Free | Deeply specialized catalog for Midjourney styles and reference codes, but lacks multi-model text and video coverage. | [.md](https://openaitools.app/tool/midlibrary-io.md) | | 5 | [ChatGPT Shortcut](https://openaitools.app/tool/chatgpt-shortcut) | 84,028 | -9.9% | Free | Free, community-curated AI prompt library for ChatGPT, Claude and Gemini | [.md](https://openaitools.app/tool/chatgpt-shortcut.md) | | 6 | [InfraBase.ai](https://openaitools.app/tool/infrabase-ai) | 39,072 | -13.6% | Free | Catalogues and compares AI infrastructure tools and services across categories, but lacks deep per-token pricing tables. | [.md](https://openaitools.app/tool/infrabase-ai.md) | | 7 | [Snack Prompt](https://openaitools.app/tool/snack-prompt) | 35,155 | -11.4% | Freemium | Community marketplace for AI prompts, agents, and automations | [.md](https://openaitools.app/tool/snack-prompt.md) | | 8 | [The Prompt Index](https://openaitools.app/tool/the-prompt-index) | 31,404 | -16.9% | Free | A searchable AI prompt database with 25 AI tools built in | [.md](https://openaitools.app/tool/the-prompt-index.md) | | 9 | [Public Prompts](https://openaitools.app/tool/public-prompts) | 19,210 | -4.8% | Free | A free prompt library and a curated, no-noise AI tools directory | [.md](https://openaitools.app/tool/public-prompts.md) | | 10 | [Museum of Models (Rival)](https://openaitools.app/tool/rival) | 9,187 | -35% | Free | Archives how various AI models answer identical prompts over time, offering qualitative comparison rather than pricing. | [.md](https://openaitools.app/tool/rival.md) | --- Source: https://openaitools.app/compare/models-dev-vs-promptbase More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)