# OpenThorn

> OpenThorn is a free BYOK (bring-your-own-key) AI website builder. You describe the website you want in plain language; OpenThorn's AI agent generates complete, deployable code, previews it in the browser, and deploys it. You connect your own API key from an AI provider and pay that provider directly — OpenThorn charges no subscription and adds no markup.

Key facts:

- The OpenThorn platform is free; AI usage is billed by your own provider at their published rates.
- Supports 18 AI providers: OpenAI, Anthropic, Google Gemini, DeepSeek, Mistral AI, Groq, Together AI, xAI, Cohere, Perplexity, OpenRouter, RodiumAi, Ollama (local models), Fireworks AI, Cerebras, Azure OpenAI, Amazon Bedrock, and NVIDIA NIM.
- Generated code belongs to the user: it can be exported, pushed to GitHub, and deployed anywhere. No proprietary format, no export paywall.
- API keys are encrypted server-side and never exposed raw; users keep control via provider-side spend limits and key rotation.
- Built by BTA (Building Tech Alternatives). Source on GitHub: https://github.com/BuildingTechAlternatives/OpenThorn
- Full machine-readable site content: https://www.openthorn.app/llms-full.txt

## Pages

- [Home](https://www.openthorn.app/): What OpenThorn is and how it works
- [Model Pricing](https://www.openthorn.app/pricing): Live per-token cost and quality comparison across supported AI models
- [FAQ](https://www.openthorn.app/faq): Common questions about BYOK, providers, costs, security, and data
- [Glossary](https://www.openthorn.app/glossary): Plain-English definitions of BYOK, AI agent, token, context window, and other key terms
- [Build with your API key](https://www.openthorn.app/build-with): Step-by-step guides for all 18 supported providers — where to get the key, recommended models, real costs
- [OpenThorn vs Lovable](https://www.openthorn.app/compare/lovable): Honest comparison — BYOK vs credit subscription
- [OpenThorn vs Bolt.new](https://www.openthorn.app/compare/bolt): Honest comparison — BYOK vs token packs
- [OpenThorn vs v0](https://www.openthorn.app/compare/v0): Honest comparison — BYOK vs metered credits
- [OpenThorn vs Framer](https://www.openthorn.app/compare/framer): Honest comparison — owned code vs hosted design platform
- [OpenThorn vs Durable](https://www.openthorn.app/compare/durable): Honest comparison — BYOK vs small-business site subscription
- [OpenThorn vs Wix AI](https://www.openthorn.app/compare/wix): Honest comparison — BYOK vs the hosted incumbent
- [How much does it cost to build a website with AI?](https://www.openthorn.app/blog/how-much-does-it-cost-to-build-a-website-with-ai): Token-level cost breakdown of a complete AI website build, per provider, vs subscription builders
- [Best BYOK AI website builders in 2026](https://www.openthorn.app/blog/best-byok-ai-website-builders-2026): The BYOK field compared
- [How to build a website with AI (BYOK)](https://www.openthorn.app/blog/how-to-build-a-website-with-ai-byok): Six-step guide
- [How to get an AI API key](https://www.openthorn.app/blog/how-to-get-an-ai-api-key): OpenAI, Anthropic, and Gemini key setup
- [Lovable vs Bolt.new vs v0: pricing compared](https://www.openthorn.app/blog/lovable-vs-bolt-vs-v0-pricing): What the big three AI builders cost in 2026, and the BYOK alternative
- [Blog](https://www.openthorn.app/blog): Product updates and guides
- [Changelog](https://www.openthorn.app/changelog): Every update, generated automatically from the GitHub commit history
- [What is a BYOK AI website builder?](https://www.openthorn.app/blog/what-is-a-byok-ai-website-builder): Definition and explanation of the BYOK model

## Legal

- [Privacy Policy](https://www.openthorn.app/privacy)
- [Terms of Service](https://www.openthorn.app/terms)
- [Imprint](https://www.openthorn.app/imprint)