Chat404

Chat404: Private AI Chat

Chat404 is an anonymous, privacy-forward AI chat app. No email. No username. No password. Your identity is a server-generated UUID — no personal information, nothing tied to you as an individual.

How it works

Create an account in seconds. The app generates a unique key (UUID) that is your only credential. Save it somewhere safe. It's the only way to access your account.

Your conversations stay on your device
Chat history is stored locally on your phone. Nothing is ever saved to our servers. The server receives your message, forwards it to the AI, streams back the response, and discards it immediately.

Choose your AI model
- Llama 3.3 70B (default)
- DeepSeek V3
- DeepSeek R1
- Gemma 3 27B

Free tier
- 5 messages per day
- Up to 1,000 tokens per message

Pro tier
- Unlimited messages
- No token cap
- Monthly subscription

Privacy by design
- No email or personal data collected
- Chat history never leaves your device
- AI provider configured to never use your data for model training.

The name says it all. Your data returns a 404 Not Found on our servers.