Your thoughts.
Kept yours.
Umbra puts a clear privacy boundary between your words and the models that help you shape them. Redact in your browser, get an answer, restore your context.
A quiet boundary around every conversation.
Nothing private needs to leave your device as readable text. The browser handles the sensitive part before a provider sees a request.
Redact
Identity anchors become reversible placeholders on your device.
Send
Only the protected version travels to the selected model.
Restore
Your browser puts your original context back into the answer.
One boundary. Many ways to make.
Start with chat today. The rest of the suite is marked clearly while it is being built.
UmbraChat
A private workspace for everyday questions.
UmbraImage
Local image stub until a FAL_KEY provider is configured.
UmbraVideo
Local video frame stub until a FAL_KEY provider is configured.
UmbraCode
A local project demo until an OpenRouter key is configured.
UmbraPay
Programmable credits for your workflow.
Choose the right mind for the job.
Model access and pricing are shown transparently. Rates below are indicative credits per million tokens, not a payment feature yet.
| Model | Context | Input / 1M | Output / 1M |
|---|---|---|---|
| Umbra Auto A balanced route selected for your prompt | 128k | 0.15 cr | 0.60 cr |
| Nova 4 Fast, capable everyday reasoning | 128k | 2.50 cr | 10.00 cr |
| Sage Sonnet Careful writing and analysis | 200k | 3.00 cr | 15.00 cr |
| Reasoning R1 Deep, deliberate problem solving | 65.536k | 0.55 cr | 2.19 cr |
| Gemini Flash Multimodal speed with a large context | 1,000k | 0.10 cr | 0.40 cr |
| Qwen Coder Focused help for code and debugging | 262.144k | 0.30 cr | 1.00 cr |
| Llama Open Open-weight conversation | 131.072k | 0.40 cr | 0.40 cr |
| Mistral Small Efficient and precise | 32k | 0.10 cr | 0.30 cr |
Credits with a clear destination.
Payments are planned, not live in this MVP. When enabled, credits will be funded with USDG (Global Dollar) or $UMB on Robinhood Chain.
The canonical stablecoin is resolved by its contract address, not a ticker. Mainnet USDG: 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168. Robinhood Chain is an Arbitrum Orbit L2 using ETH for gas.