Claudia: AI Services and Data Providers

The third-party AI services and data providers Claudia can be configured to use.

This page is the live, public-facing companion to the Claudia Privacy Policy. It enumerates every third-party service Claudia can be configured to use, what data flows there, and where to read each provider's own privacy policy.

The Privacy Policy itself does not embed retention windows or provider-specific terms, as those change quarterly and would make the policy stale. This page is updated whenever Claudia adds, removes, or changes a provider.

Last updated: August 12, 2026

How to read this

If you do not configure a provider, no data flows to that provider. Most rows below describe potential flows that activate only when you save an API key for that service or grant an OAuth scope. Where a row does not need a key, that is stated in the row.

AI model services (chat, voice, photo analysis)

Data sent: the message you typed (or the transcript of what you spoke), the minimum context Claudia needs to answer (recent chat history, memory facts only when relevant, attached photos or documents when included). Photos you attach are sent to the model you selected so it can analyze them. Claudia does not generate images.

Before each turn, Claudia runs a short classifier pass that decides which tools the turn may need. Since August 3, 2026, that pass goes only to the cheap model of the provider you already selected for the turn. It is never routed to a different company. If you are running Claudia fully on-device, the classifier runs on-device too and no network call is made for it.

Voice transcription and synthesis (on-device default)

In v1, both voice transcription and voice synthesis run entirely on-device by default. Voice audio does not leave your device on that default path. No transcription provider key is required, and voice mode works with any chat-model key.

Voice transcription uses Apple's built-in speech recognition (SFSpeechRecognizer) on iPhone. You may optionally enable a cloud transcription provider in Settings → Audio, in which case the recorded audio is uploaded to that provider:

Cloud transcription is sometimes more accurate on rare words, accents, or noisy environments. The on-device default sends no audio anywhere, needs no network round-trip, and adds no API cost.

Voice synthesis (Claudia's spoken replies) uses an on-device neural voice model, Piper "amy" (en_US-amy-medium). Audio is generated locally and never sent to a server on the default path. The model file (an ONNX build of about 63 MB) is downloaded once on first voice use from Hugging Face (huggingface.co/diffusionstudio/piper-voices) and cached on your phone. Only the model file itself is fetched, and your message text is not sent to Hugging Face. You can optionally use a cloud voice with your own key in Settings → Audio:

On the cloud-voice path, Claudia sends the text of the reply to the chosen provider, the provider returns mp3 audio, and the audio is then played on your device. Voice provider keys are stored only in the iOS Keychain on your phone.

Android in v1: voice mode is not available on Android. We will ship Android voice after iOS launch.

Cloud connectors (removed August 10, 2026)

Removed August 10, 2026: earlier versions of Claudia could connect the Google accounts below, activated only when you explicitly connected them. Those connections were removed from the app on August 10, 2026, and the current app cannot connect a Google account. The table is kept for the historical record. If you connected an account in an earlier version, Sign out and remove API keys in Settings deletes any Google sign-in tokens still on your phone.

Narrow public services (keyless, used by specific tools)

These run only when the matching tool is invoked. They do not receive your chat history.

Optional public services (require your own API key)

App infrastructure and user-configured endpoints

These are not AI providers, but they are network calls, so they are listed here rather than left out.

Removed August 10, 2026: an optional "Claude connector" relay (claudia-connect.prentusai.workers.dev) was listed here between July 20 and August 10, 2026. The feature was discontinued, the server was deleted along with any data it held, and the app no longer contains a pairing flow. No PrentusAI-operated endpoint remains in the app.

What we do not do

Retention

Retention is per-provider. Most providers retain inputs and outputs for a short window for safety review (typically 30 days) unless you opt out at the provider level. Please consult each provider's privacy policy linked above for the current details. We do not embed retention windows here because they change.

How to stop data from going to any provider

After removing a key, Claudia cannot reach that provider until you re-enter the key. What a provider already received cannot be taken back by the app. To have it removed, contact that provider directly under their data-deletion process.

Updates

This page is updated whenever Claudia's set of supported providers changes. Material changes will also be noted in the Claudia release notes in the App Store.

For questions: team@prentusai.com