Bitcoin Lightning Payments — No Signup, No Credit Card
Bitcoin AI Chat
Pay per message with Lightning — from 5 sats
Chat with DeepSeek R1, Kimi K2.5, Llama 4 Scout, and more frontier AI models. Pay with Bitcoin Lightning micropayments — no signup, no credit card, no subscription. Completely private.
Start Chatting NowTop AI Models
Access DeepSeek R1, Kimi K2.5 (great for coding), Llama 4 Scout, and more frontier models.
Web Search
Enable real-time web search to get up-to-date answers grounded in current information.
Code Expert
Kimi K2.5 excels at code generation, debugging, and refactoring across all major languages.
What You Can Do
Multi-turn ChatPay with LightningCode GenerationWeb SearchNo Signup RequiredL402 API Access
Why Sats4AI?
Lightning Fast Payments
Scan a Lightning invoice, pay in sats, and start generating instantly. No waiting.
100% Private
No account, no email, no KYC. Bitcoin preserves your privacy by default.
Bitcoin Native + L402
Pay per use with satoshis. Also available as an L402 API and MCP server for developers.