Hey everyone.

Any news on the Lumo API? Timeline, availability, and whether it's included in Lumo Plus? Or just the roadmap? https://proton.me/blog/2026-autumn-winter-roadmaps

I've been using Lumo for a while now and really like what Proton is building here. One thing I'm really hoping for is a public API, so we can integrate Lumo and its privacy focus into our own tools and workflows instead of being limited to the app/web interface.

I haven't been able to find any official information about this, so I wanted to ask here:

Timeline: Has Proton said anything about when an API for Lumo will be released?

Design: What will the API look like? REST, webhooks, streaming support? Will it be OpenAI-compatible so existing clients and integrations can just be pointed at Lumo?

Availability for individuals: Will the API be open to private/personal accounts, or only to business customers?

Included in Lumo Plus?: If we already pay for Lumo Plus, will API usage be included in the subscription, or will it be metered/billed separately (e.g. tokens, requests)?

Model choice: Will the API let us choose between Lumo Lite and Lumo Max (and thinking mode)?

Custom Lumos: Since we can already create custom Lumos in the app, will we be able to call those via the API with their personality and instructions?

Privacy/data handling: Since zero-access encryption is such a core promise of Lumo, how will that translate to API usage? Will prompts sent through the API be treated the same way as chats in the app (no logging, no training)?

Other features: Any chance the API will also expose image generation/editing or web search?

Beta/waitlist: If there's a beta or waitlist coming, where would we sign up?

Would love to hear if anyone knows more, or if a Proton team member could share any plans. Even a "we're working on it, no ETA yet" would be appreciated.

Thanks!