Somnus is a Windows AI agent with every frontier model built in: Claude, GPT, Gemini, Grok, DeepSeek and more. One prepaid balance, no subscription. Every top-up is doubled, so you pay about half the official API price. Start with $5 free.
Hey Product Hunt, I'm Francisco, a computer engineering student in Lisbon, and I built Somnus.
I wanted the best model for each task in one place, without juggling subscriptions and usage caps, and paying only for what I actually use.
Somnus is that: a desktop AI agent for Windows with 60+ models (Claude, GPT, Gemini, Grok, DeepSeek, Kimi, Qwen and more) behind one balance.
- Every top-up is doubled: put in $10, get $20 of usage, so each model costs about half its official API price. Your first top-up is 2.5x.
- No subscription, no caps. Credit never expires.
- An agent, not just a chat: it works with your files, runs the terminal and browser, and remembers across sessions.
- Switch models mid-conversation: a cheap model for simple steps, a frontier one when it matters.
Every new account gets $5 free, enough to try the big models properly.
The desktop app is built on the open-source Hermes Agent (MIT); Somnus adds the account, the model gateway and the pricing. Windows only for now.
I'd love your honest feedback: which models do you use most, and what would make you switch from the subscription apps?