Brello 1.0 · Android
Brello 1.0 is a private AI assistant for Android and iPhone, made by Stuvio, that runs its language model entirely on the phone. It answers questions, reads photos with Brello Pro or Brello Vision, and, only when you choose, searches the web and cites its sources. There is no cloud AI, no account and no Brello server.
Brello 1.0 is on Google Play and the App Store.
Facts on this page describe Brello 1.0 (version 1.0.0, build 1) as of 5 October 2026.
Capabilities
Brello 1.0 chats, reads photos, answers from the web with numbered citations, asks before it goes online, and offers a slower reasoning mode called Think harder. Each capability below gives its mechanism, one specification and the limit that applies to it.
Up to 1,200 tokens per answer
A language model on the phone writes each answer and streams it as it goes, formatted as Markdown with headings, lists, tables and code. You can copy, regenerate or stop an answer, and each one ends with a line such as ‘2.4s · On-device’.
LimitEach answer sees only the last six messages, clipped to 300 characters for yours and 600 for Brello’s, so long chats lose their early detail.
1 photo per message · Pro and Vision
Take a photo or pick one from the gallery and ask about it; sent alone, it gets a detailed description. Photos are downscaled to at most 1280 × 1280 and copied into Brello’s private storage, and a photo question never triggers a web search.
LimitBrello Core reads text only, and Brello 1.0 accepts no PDFs, documents or other files.
Off by default · up to 4 pages read
With web search on, the phone turns the question into a search query, reads up to four result pages, ranks their passages with BM25 and gives the model the best ones. The answer cites them inline as [1], [2], under source cards that open each page.
LimitResults depend on third-party search engines. An attempt can take up to 14 seconds or come back empty, and Brello then answers from the model’s own knowledge.
Asks first when web search is off
With web search off, a question that looks time-sensitive, about news, prices, weather, scores or ‘this week’, pauses on a card titled ‘Search the web for this?’ with two buttons, ‘Search the web’ and ‘Answer offline’.
LimitThe check looks for words like these and the current year. A question that needs fresh facts but avoids them is answered offline.
Up to 2,048 tokens per answer
A reasoning mode, switched on from the + menu. The model reasons before it answers, and a ‘Thought process’ panel shows the latest lines of that reasoning live, then collapses into a row you can expand. All three models support it.
LimitAnswers take longer to arrive.
977 MB to 3.66 GB, downloaded once
Each model downloads once from Hugging Face, with no account or token. After that, chat, photos and Think harder work without a connection, on the phone’s GPU when it can and on the CPU otherwise.
LimitThe first launch of each model takes up to a minute while it builds a speed cache for the phone’s chip, a step labelled ‘Optimize for this phone’.
Screens
Six screens from Brello 1.0 in light mode, with the phone’s status bar removed.
Models
Brello 1.0 offers three models, each built on an open model and sized for a different amount of phone memory. Brello reads the phone’s total memory, allows 10% because phones report a little less than their advertised RAM, and recommends the most capable model that fits.
| Specification | Brello Pro | Brello Vision | Brello Core |
|---|---|---|---|
| In the app | Most capable | Balanced | Fastest |
| Based on | Gemma 4 E4B by Google | Gemma 4 E2B by Google | Qwen3 1.7B by Alibaba |
| Input | Text + photos | Text + photos | Text |
| Download | 3.66 GB | 2.59 GB | 977 MB |
| Storage used, with speed cache | ≈6.26 GB | ≈3.60 GB | ≈1.95 GB |
| Free space needed first | ≈6.56 GB | ≈3.90 GB | ≈2.25 GB |
| Recommended memory | 12 GB RAM | 6 GB RAM | 4 GB RAM |
| Licence | Apache 2.0 | Apache 2.0 | Apache 2.0 |
Sizes are decimal (1 GB = 1,000,000,000 bytes). All three models run locally with Google’s LiteRT-LM runtime. Brello isn’t affiliated with or endorsed by Google or Alibaba.
LimitThe smaller models are faster but less capable. All three are far smaller than frontier cloud models: they can be wrong, have a knowledge cutoff and are weaker at long or complex reasoning.
Compare the three models in detailRead ‘Fitting a model to the phone in your pocket’
Privacy
Your questions, photos and answers are processed on your phone, and your chats are stored only there. Three kinds of request leave the phone, and each one starts with something you do: downloading a model, searching the web, and reading the pages a search returns.
| When | What is sent | To whom | Started by |
|---|---|---|---|
| Downloading a model, once per model | A standard file download request | Hugging Face (litert-community repositories) | You, by starting the download |
| Web search, only when on or approved for that question | The search text: a cleaned-up version of the question, with up to 10 words of the previous question added on follow-ups | Each search engine tried, in order, until one returns relevant results: DuckDuckGo, Bing, Brave Search, Google News (RSS) or Wikipedia | The ‘Search the web’ setting, or the ‘Search the web for this?’ card |
| Reading results, at the same moment | Ordinary page requests for up to 4 result pages | The websites in the results | The same choice |
| Tapping a source card or citation | Opens the page | Your browser | You |
Search and page requests carry the Do Not Track (DNT: 1) and Global Privacy Control (Sec-GPC: 1) headers. The invisible browser Brello searches with exists only while searching; after 3 idle minutes it is closed and its cookies, cache and storage are wiped. Results stay in memory for 15 minutes and are gone when the app closes.
There is no Brello server, proxy or relay, so we have no logs to keep. Search engines and websites still see what any web request shows, including your phone’s IP address. The app contains no analytics, crash-reporting or advertising software, and chats are excluded from Android cloud backup and device-to-device transfer.
Read how Brello handles your questions, photos and answersRead ‘Asking before going online: consent for web search’Read the privacy policy
How it works
Every reply follows the same five steps on the phone. Only the optional web search sends anything out, and the model that writes the answer runs on the phone either way.
Read the precise steps, system prompt and guards in the system cardRead ‘Answering from the open web, without a server’Read ‘On-device AI, explained’
System requirements
Brello 1.0 needs an Android phone with a 64-bit ARM processor, Android 8.0 or newer, and enough memory and free storage for the model you choose. Brello checks both before it downloads.
| Operating system | Android 8.0 (API 26) or newer |
|---|---|
| Processor | 64-bit ARM (arm64-v8a) only. x86 devices and Chromebooks are not supported. |
| Memory (RAM) | Brello Core 4 GB or more · Brello Vision 6 GB or more · Brello Pro 12 GB or more. Brello recommends a model and warns if you choose a bigger one. |
| Free storage | Brello Core ≈2.25 GB · Brello Vision ≈3.90 GB · Brello Pro ≈6.56 GB: the model, its speed cache and 300 MB of headroom, checked before the download starts |
| Network | Wi-Fi recommended for the one-time model download (977 MB to 3.66 GB). Optional afterwards, for web search. |
| Graphics | Optional. Brello uses the GPU through OpenCL when it can, and the CPU otherwise. |
| Orientation | Portrait |
| iPhone and iPad | Not supported |
Limitations
Brello 1.0 is a first version, and its models are small enough to fit on a phone. These are the limits that matter most in use.
Status
Brello 1.0 is available for Android on Google Play and for iPhone on the App Store.
Brello 1.0 runs its models entirely on the phone. Brello Super Intelligence, which is in development, is being designed to add verifiable private compute for heavier work while keeping the device first.
Version 1.0.0 (build 1)4 October 2026Commits 82cc662 and 18dc2f5
Read the Brello 1.0 announcementSee the version history in the system card
Comparisons
The main difference is where the model runs. A cloud assistant answers on its provider’s computers, so each question travels there; Brello 1.0 answers on the phone, so questions, photos and answers stay there unless you choose to search the web.
The trade-off is capability. Brello’s on-device models are far smaller than frontier cloud models and weaker at long or complex reasoning.
Our comparison pages set Brello 1.0 beside named assistants, quoting each provider’s own published documentation with the date it was checked.
Brello and ChatGPTBrello and GeminiBrello and ClaudeBrello and Microsoft CopilotBrello and PerplexityAll comparisons
FAQ
Short answers to common questions about Brello 1.0. The full FAQ also covers Brello Super Intelligence, privacy and the company.
Yes, after a one-time model download of 977 MB to 3.66 GB. Chat, photo questions and Think harder then work with no connection, including in airplane mode. Only web search needs the internet, and it is off by default.
No. The model runs on your phone, so your questions, photos and answers are processed there, and there is no Brello server. If you turn on web search, the search text goes directly from your phone to a search engine, which sees the request and your IP address as it would for any web request.
No. There is no sign-up, login or Brello account, and the models download from Hugging Face without an account or access token.
Android phones with a 64-bit ARM (arm64-v8a) processor and Android 8.0 or newer, and iPhone. On Android, Brello Core is recommended for 4 GB of RAM, Brello Vision for 6 GB and Brello Pro for 12 GB, and Brello recommends one automatically.
Yes. Its on-device models are far smaller than frontier cloud models and can make mistakes. The system prompt tells the model, “If you are not sure about something, say so instead of guessing.” With web search on, answers cite their sources so you can check them.
Download it from Google Play for Android or the App Store for iPhone.
Brello 1.0
Android and iPhone
Brello 1.0 is on Google Play and the App Store. It runs on your phone, with no account.