# Models.dev vs Solvely AI

Models.dev records 200,451 monthly visits with -3.9% month-over-month growth and Free pricing. Solvely AI records 4,526,289 monthly visits with +134% growth and Freemium pricing.

| Metric | [Models.dev](https://openaitools.app/tool/models-dev) | [Solvely AI](https://openaitools.app/tool/solvely-ai) |
| :--- | :--- | :--- |
| Website URL | https://models.dev | https://solvely.ai |
| Categories | AI Models, AI API, Open Source AI Models, AI Tools Directory | AI Homework Helper, AI Math, AI Essay Writer, AI Note Taker |
| Pricing Model | Free | Freemium |
| Monthly Visits | 200,451 | 4,526,289 |
| MoM Growth Rate | -3.9% | +134% |
| Primary Market | China | United States |
| Direct Visits | 136,316 | 539,128 |
| Review Score | 4.4 | 4.3 |
| Saved Count | 0 | 1 |
| 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)

## Solvely AI

Solvely AI is an all-in-one AI study platform built for students. At its core is a homework solver that accepts problems as photos, PDFs, or typed text and returns step-by-step solutions. To improve reliability, Solvely cross-checks answers across multiple top-tier AI models, and it renders explanations as visuals and short videos for subjects like 3D geometry, calculus graphing, physics force analysis, and biochemistry.

Beyond homework, Solvely targets exam preparation and everyday study. Students upload notes and past exams so the tool can predict likely topics, build mock exams and cheat sheets, and produce a daily review plan with a readiness score. It also records lectures, transcribes them, and converts the material into structured notes, flashcards, quizzes, podcasts, and other study sets, so the same source content feeds multiple study formats.

The platform reports being trusted by more than 10 million students from over 5,000 universities, with over 200 million problems solved and a 4.8-star app rating. It is available on Web, iOS, Android, and as a Chrome extension. A free tier lets students start solving immediately, while Solvely Unlimited bundles unlimited step-by-step solutions, exam prep, and other premium tools into one subscription.

**Pricing & Plans:** Freemium. Students can start for free and solve problems, while Solvely Unlimited is a paid subscription that unlocks unlimited step-by-step homework solutions, exam prep with predictions and mock exams, and additional premium study tools. Check the official pricing page for current plan details and any student discounts.

- **Multi-Model Homework Solver:** Upload a problem by photo, PDF, or text and get accurate step-by-step solutions, backed by multi-model cross-checking for higher accuracy.
- **Exam Prep & Prediction:** Upload notes and past exams to predict likely topics, generate mock exams, cheat sheets, and a daily review plan with a readiness score.
- **Notes, Flashcards & Quizzes:** Record lectures for live transcription, then auto-generate structured notes, flashcards, and quizzes from your own course materials.
- **Visual & Video Explanations:** Break down hard concepts with rendered video and visual explanations covering 3D geometry, calculus graphs, and physics simulations.
- **Cross-Platform Study:** Study wherever you are with Web, iOS, Android, and a Chrome extension, all sharing the same account and tools.

**Strengths:** Covers homework, exam prep, notes, flashcards, and quizzes in one platform; Multi-model cross-checking aims to improve answer accuracy; Visual and video explanations help with difficult STEM concepts; Available on Web, iOS, Android, and Chrome extension

**Limitations:** Unlimited access and the most powerful study features require a paid Solvely Unlimited subscription; Accuracy, while high, is not guaranteed to be 100% on every problem; The all-in-one scope means some specialized study tools may go deeper elsewhere; Best results depend on uploading clear, well-structured source material

[Profile (Markdown)](https://openaitools.app/tool/solvely-ai.md)

## Frequently Asked Questions

### How do Models.dev and Solvely AI compare in monthly traffic?

Models.dev has 200,451 monthly visits, while Solvely AI has 4,526,289. 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%; Solvely AI has +134%.

### 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. Solvely AI: Freemium. Freemium. Students can start for free and solve problems, while Solvely Unlimited is a paid subscription that unlocks unlimited step-by-step homework solutions, exam prep with predictions and mock exams, and additional premium study tools. Check the official pricing page for current plan details and any student discounts.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Studocu](https://openaitools.app/tool/studocu-global) | 39,297,122 | +1.1% | Freemium | Massive library of shared academic notes paired with AI study tools, but less focused on real-time homework chat. | [.md](https://openaitools.app/tool/studocu-global.md) |
| 2 | [Astra AI](https://openaitools.app/tool/astra-ai) | 7,356,157 | +40.3% | Freemium, Paid | Personalized AI tutoring that builds custom exam prep plans, though with less emphasis on instant homework Q&A. | [.md](https://openaitools.app/tool/astra-ai.md) |
| 3 | [Gauth](https://openaitools.app/tool/gauthmath-com) | 7,164,627 | +52.4% | Freemium | Exceptional step-by-step photo homework solver, but less focused on comprehensive lecture note transcription and flashcards. | [.md](https://openaitools.app/tool/gauthmath-com.md) |
| 4 | [Knowt](https://openaitools.app/tool/knowt-com) | 4,183,953 | +5.4% | Free | Free study platform focusing on automated flashcards and practice tests, but lacks live step-by-step problem-solving tutors. | [.md](https://openaitools.app/tool/knowt-com.md) |
| 5 | [WolframAlpha](https://openaitools.app/tool/wolframalpha) | 3,101,089 | +5.6% | Freemium | Unmatched computational power for exact math and science calculations, but lacks general homework tutoring and flashcards. | [.md](https://openaitools.app/tool/wolframalpha.md) |
| 6 | [StudyFetch](https://openaitools.app/tool/study-fetch) | 1,750,520 | +1.7% | Freemium | Strong course material transformation into flashcards and interactive video explainers, but less dedicated to instant photo math solving. | [.md](https://openaitools.app/tool/study-fetch.md) |
| 7 | [Studydrive](https://openaitools.app/tool/studydrive) | 864,081 | -29.1% | Freemium | University learning platform combining shared notes and AI flashcards, though geared more towards European universities. | [.md](https://openaitools.app/tool/studydrive.md) |
| 8 | [Revisely](https://openaitools.app/tool/revisely-com) | 512,137 | -2.3% | Freemium | Excellent for turning notes and videos into flashcards, but weaker at live step-by-step math problem solving. | [.md](https://openaitools.app/tool/revisely-com.md) |
| 9 | [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) |
| 10 | [Answer.AI](https://openaitools.app/tool/answer-ai-1) | 138,003 | -9.1% | Freemium | Reliable 24/7 AI tutor for homework help and flashcard creation, offering similar multi-subject coverage. | [.md](https://openaitools.app/tool/answer-ai-1.md) |

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Source: https://openaitools.app/compare/models-dev-vs-solvely-ai

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