Build with your API key
Build a website with your Mistral AI API key
Facts last verified: . Provider pricing and free tiers change — check their site for current numbers.
Yes — Mistral's La Plateforme offers a free API tier, so you can start building websites with a European AI provider for $0. Create a key at console.mistral.ai, paste it into OpenThorn (free, encrypted server-side), describe your site, and deploy. Paid rates are competitive with mid-tier Western models.
Get your key
Official pricing
Free tier
Yes — La Plateforme has a free experiment tier with rate limits; paid usage unlocks higher limits and the largest models.
Recommended models
- Mistral Large — Mistral's flagship — the best choice for complete website builds.
- Mistral Medium 3.5 — Strong quality at a lower price point.
- Codestral — Code-specialized model — fast and effective for iteration.
How to build your website
- Create a Mistral API keySign up at console.mistral.ai and create a key under API Keys. The free experiment tier requires no payment details.
- Optionally add billingFor higher rate limits and the largest models, add a payment method and set usage alerts in the console.
- Connect the key to OpenThornSign up free at openthorn.app, open the Providers page, choose Mistral AI, and paste your key. It is encrypted server-side with AES-256-GCM and never exposed raw.
- Describe your website and ship itCreate a project, pick a Mistral model, and describe the site. Preview it live, iterate, then deploy to Netlify or export the source.
What it costs
On the free tier your first sites cost $0 within rate limits. Paid per-token rates are competitive with mid-tier models — a typical site costs cents to under a dollar.
Common questions
Does Mistral have a free API tier I can use with OpenThorn?
Yes. La Plateforme's free experiment tier issues API keys with rate limits and no payment details, and OpenThorn itself is free — so your first websites can cost $0.
Why choose Mistral over OpenAI or Anthropic?
Mistral is a European provider with EU-hosted options, which matters for data-residency requirements. Its models are competitive for web generation, and the free tier makes starting cheaper than any prepaid-only provider.
Is my Mistral API key safe in OpenThorn?
Keys are encrypted server-side with AES-256-GCM using per-user derived keys and are never exposed raw to the browser. You can rotate or revoke the key in the Mistral console at any time.
New here? Read how to build a website with AI using your own key, how to get an AI API key, or compare model pricing. Other providers: OpenAI · Anthropic · Google Gemini · DeepSeek · Groq · Together AI · xAI · Cohere · Perplexity · OpenRouter · Ollama · Fireworks AI · Cerebras · Azure OpenAI · Amazon Bedrock · NVIDIA NIM