Benzaiflow uses AI to help break down tasks, summarize context, suggest plans, enrich task metadata, and respond in chat.
Anthropic provides all of Benzaiflow's AI in the cloud: chat and onboarding, task breakdowns and enrichment, summaries, titles, profile generation, and planning-related structured outputs. Relevant messages, onboarding answers, task context, profile facts, calendar context, and app state may be sent to Anthropic when needed for the feature you use, and in Synced only once you have allowed it (see the next paragraph).
In Synced, the app asks “Use cloud AI?” before any of your content is sent to Anthropic, and lists what Anthropic would receive: what you write to Noji, the text of your tasks and captures, photos you choose to scan, your calendar events and reminders, and the profile notes kept about how you work. Nothing from your account is sent to Anthropic until you choose “Allow”: Benzaiflow's servers check your answer before calling Anthropic for your account. If you choose “Not now”, the app keeps working without AI answers, and your tasks, plan, timer, and calendar stay available. You can change your answer at any time with the switch at Settings → Account & data → Cloud AI; turning it off stops new requests to Anthropic and does not delete what you have already saved in the app. If we change what is sent, we will ask you again. Versions of the app from before this question existed (before 1.11.0) do not ask it: an account that has only ever been opened with such a version keeps that version's cloud AI behaviour until a current version of the app opens it and asks.
In our production service, requests to Anthropic pass through Cloudflare's AI Gateway, which runs on Benzaiflow's Cloudflare account. The gateway can keep logs of these requests and of Anthropic's answers, including the content sent for the feature you used, and can cache answers; those logs are kept by Cloudflare on Benzaiflow's account. Requests from the website's “Make it smaller” page ask the gateway not to log or cache them.
In Synced, you can choose a photo to scan for tasks, events, and reminders. The photo you pick is sent to Benzaiflow's servers and, through the AI Gateway described above, to Anthropic, which reads it; this is part of cloud AI and needs your consent. Benzaiflow's database keeps what was found in the photo and a fingerprint (a hash) used to recognise a repeated request, not the photo itself.
Voice notes are turned into text by your device's own speech recognition (Apple's on iOS, Google's on Android), which may process the audio on the device or on that provider's servers under its own terms. Benzaiflow receives only the resulting text, never the recording.
The “Make it smaller” page on our website (benzaiflow.com/shrink) works without an account. The text you type there is sent to Benzaiflow's servers and to Anthropic to write the steps. To limit abuse, the page may use Cloudflare Turnstile. A link made there, or shared from the app, holds the title and steps inside the link itself, in the part after the “#”, which browsers do not send to servers: opening such a link does not send its steps to Benzaiflow, and Benzaiflow keeps no copy of these links. The page removes that part from the address bar before analytics load, and the page's analytics events record only that steps were made or a link was opened, never their text. An image saved from the page is drawn in your browser and is not uploaded. Anyone you send such a link to can read the steps it holds.
The app runs in one of two modes, chosen when you start and changeable in Settings. In Synced, your content is stored in your account on our servers and the AI features above run in the cloud. In On this device, your tasks, chats, profile, and settings are stored only on your device, with no account: Benzaiflow does not receive them unless you send us a report about one of Noji's messages (see below), and AI, on devices that support it, runs on the device itself. Device backups you turn on (iCloud or Android backup) may include that data under the platform's terms.
On-device AI uses a model file (Gemma 4 E2B by Google DeepMind) that you can choose to download once from Hugging Face. The download goes directly from your device to Hugging Face, which receives your device's IP address and ordinary request metadata under its own privacy policy. No task, chat, or profile content is sent.
In On this device, crash reports are off unless you turn them on in Settings, and the app still checks Expo for app updates. Moving between modes happens only when you start it: moving to Synced uploads your content from the device to your account; moving to On this device copies it to the device, and your account's copy remains until you choose to delete it.
You can report something Noji wrote: a chat message or, from Settings, words you paste or describe. With a signed-in Synced account, the report is stored with your account's feedback: the reported words (at most the first 500 characters of a chat message, or 1,500 of what you paste), your note, for a chat message the identifiers of the message and conversation, and your device's platform, system version, and app version. In On this device, and from a guest account in Synced, sending a report sends the reported words, your note, the app's version, language, and platform, and which model wrote them (the on-device model's name when there is one, or “cloud” for a guest account) to Benzaiflow's servers, which forward them by email (through Resend) to our team; that report carries no name, account, or device identifier. Benzaiflow's report service uses the network address the report comes from only to limit how many reports can be sent, in short-lived rate-limit records and, for the daily limit, as a keyed hash; like any request, it is also processed by Cloudflare, which hosts our servers. Nothing is sent until you tap to send the report.
We do not sell your task, chat, calendar, or profile content. We do not use your personal content to build advertising profiles.
AI output can be incorrect or incomplete. You should review generated suggestions before relying on them, especially for calendar changes, reminders, or important commitments.