AI startup · Founded 2025 # AI that sells for Bangladesh’s online shops. Byte Minus builds **Sells Pilot**, an AI sales assistant that answers Facebook, Instagram and WhatsApp customers in Bangla, Banglish and English, quotes only the prices and stock a shop really has, and turns chats into confirmed orders. [Try Sells Pilot free](https://sellspilot.com) [How it works](https://byteminus.com/#sells-pilot) Live today · free plan for 100 conversations a month · **no card needed** RA **Rima Akter**Messenger · Dhanmondi Live এই কুর্তাটা আছে? দাম কত?“Is this kurta available? How much?” জি আছে। সুতির কুর্তা — ১,২৫০ টাকা। M, L, XL সাইজ আছে।✓ Checked against catalog · ৳1,250 · 8 in stock Dhanmondi te delivery koto? Cash e dibo.“Delivery to Dhanmondi? I’ll pay cash.” Dhanmondi-te delivery 60 taka. Total 1,310 taka, cash on delivery. Confirm korbo? ✓ Order confirmed - Total: ৳1,310 - Payment: Cash on delivery - Stock: 8 → 7 Example conversation - Founded: 2025 - Channels: Messenger, Instagram, WhatsApp: 3 - Languages: Bangla, Banglish, English: 3 - Prices sent without a database check: 0 The problem ## Bangladesh sells in the inbox — and the inbox doesn’t scale. A large share of online selling in Bangladesh happens in Facebook and Instagram chats, known as f-commerce. Every order starts as a message that someone has to answer by hand. ### Answered by hand, at all hours Customers message late at night and all at once. A reply that comes the next morning is usually a sale that went to another page. ### Prices and stock from memory Whoever is answering quotes from memory or a spreadsheet. One wrong price or a size that has already sold out becomes an argument, a refund or a lost customer. ### Orders scattered across chats Delivery charges, cash on delivery, couriers and returns are worked out message by message, then copied into a notebook or a sheet. Our product ## Sells Pilot: an AI sales assistant for every shop’s inbox. A merchant connects a Facebook Page, brings their catalog, and the inbox starts answering — with no integration project, developer account or Meta verification to start. - Live - SaaS - Commerce · AI ### Answers, quotes, confirms and books the delivery — then hands over when a person is needed. - **Messenger, Instagram and WhatsApp** in one inbox, on Meta’s official Graph API and WhatsApp Cloud API only. - **Bangla, Banglish and English**, often in the same message. The catalog is searchable in all three. - **Orders, not just replies.** Carts, cash-on-delivery orders, delivery charges by district, coupons, returns and stock that updates atomically. - **A free shop website for every merchant**, selling from the same catalog and stock. - **Couriers and payments**: parcels booked with Steadfast, Pathao or RedX; plans paid in taka through bKash and SSLCommerz. - **Works where the team is**: a phone app with push notifications, Telegram alerts, and sync with WooCommerce, Shopify and a merchant API. [Visit sellspilot.com](https://sellspilot.com) - Status: Live, self-serve sign-up - Free: 100 conversations / month - Starter: ৳1,500 / month · 1,000 conversations - Growth: ৳4,500 / month · 5,000 conversations - Business model: Prepaid SaaS, priced per conversation - Website: [sellspilot.com](https://sellspilot.com) - ### Connect a Page One click with Facebook. No Meta dashboard, developer account or webhook to configure. - ### Bring the catalog Upload a spreadsheet, add products by hand, or sync an existing WooCommerce or Shopify shop. - ### It starts selling It answers, quotes, confirms and books the delivery fee, and hands the conversation over the moment a person is needed. Why it’s safe to let AI sell ## The assistant is allowed to be wrong. The message is not. Any language model will eventually invent a number. So no draft is trusted: every outgoing message passes gates written in code, not in a prompt, before it can reach a customer. When the AI isn’t sure — or no AI key is configured at all — the conversation goes to a person. A customer is never left unanswered, and a guess is never sent. - **Price and stock gate** — any figure the catalog doesn’t support is blocked; the draft is rewritten or handed over. - **Messaging-window gate** — nothing is sent outside Meta’s 24-hour window without an approved template. - **Budget gates** — per-conversation message caps and plan quotas, enforced before every send. - **Exactly-once orders** — webhooks are signed, queued and de-duplicated; orders and messages carry idempotency keys. - **Every shop kept apart** — tenant scoping that fails loudly when no shop is set, and tokens encrypted at rest. Technology ## Built on leading AI models and cloud infrastructure. Sells Pilot is provider-agnostic by design, so each task runs on the model that does it best, and the platform can scale from one shop to thousands. ### Language models Customer conversations run on **Anthropic’s Claude** by default. **Google Gemini** handles images, and **OpenAI** models handle speech-to-text for voice notes and embeddings for search. The same layer supports **Vertex AI**, **Amazon Bedrock** and **Azure**. ### Retrieval and tools The assistant works through tools — catalog search, the shop’s own answers, order status — backed by **PostgreSQL with pgvector** and trigram search that understands Bangla, Banglish and English spellings. ### Cloud Runs on **AWS in Mumbai (ap-south-1)**, in Docker, with continuous deployment from GitHub. Our websites are served from **Cloudflare**’s edge. Next: managed PostgreSQL on RDS and more application servers. ### Engineering Laravel 13 on PHP 8.3, Redis queues, and a test suite that runs against real PostgreSQL and Redis. An architecture test keeps business logic independent of any one channel. Roadmap ## Where Sells Pilot goes next. - ### Live now Messenger and Instagram answered by the same assistant, WhatsApp on the Cloud API, a free shop website per merchant, couriers, and a phone app. - ### Next Self-serve WhatsApp connection and delivery-status tracking, and Nagad alongside bKash and SSLCommerz. - ### Then Fake-order risk scoring before a parcel ships, and a managed, multi-server cloud setup for more merchants. - ### Beyond commerce EduByte, our platform for schools, moves from development to pilots with institutions in Bangladesh. More from Byte Minus ## Other products we build and run. - In development - Education ### [EduByte](https://edubyte.byteminus.com/) The school operating platform for Bangladesh. Attendance, marks, fees, notices and guardian communication, Bangla-first and offline-capable, with every school kept apart by PostgreSQL row-level security. [Visit EduByte →](https://edubyte.byteminus.com/) [Details](https://byteminus.com/open-source/#edulab)MIT licensed - Live - Shared living ### MessLedger Mess accounts, minus the arguing. Shared-mess accounting for hostels and flats: meals down to the half meal, bazar, rent, bills and deposits, with the meal rate worked out at month end. [messledger.com →](https://messledger.com)Web - Live - Personal finance ### MoneyMate An offline budget tracker that keeps your data on your phone. Sorts spending into accounts and bills and shows the month at a glance. No ads, no tracking, nothing sold on. [Google Play →](https://play.google.com/store/apps/details?id=com.mhhaq.moneymate)Free · Android - Beta - Higher education ### Grad Ops The cold email, aimed properly. Matches a graduate-school applicant’s research interests with professors publishing in that area, so each email reaches the right person. For MS and PhD applicants Open source ## We share what we build. Parts of our work that are useful beyond our own products are released under the MIT license, with documentation and tests. [All open-source projects](https://byteminus.com/open-source/) - MIT - Released - Payments ### BDPayGate Every Bangladeshi payment gateway, one API — for Laravel and Node.js. bKash, Nagad, SSLCommerz and nine more behind the same `charge`, callback, `sync` and `refund`, with every payment confirmed server to server. [Docs](https://bdpaygate.github.io/) [Packagist](https://packagist.org/packages/byteminus/laravel-bdpaygate) [npm](https://www.npmjs.com/package/bdpaygate) - MIT - Released - Blogging · AI ### Laravel AI Blog The AI-native blog package for Laravel. On-page SEO scores with plain-English fixes, internal links, AI drafting through `laravel/ai`, and an MCP server so Claude and ChatGPT can write drafts. [GitHub](https://github.com/byteminus/laravel-ai-blog) [Packagist](https://packagist.org/packages/byteminus/laravel-ai-blog) - MIT - Released - Go ### Go packages for SaaS Eleven small modules for the parts every SaaS backend needs. Tenancy with row-level security, permissions, approvals, audit logs, settings, feature flags, translations, media, notifications, backups and an admin panel. Go 1.26+, PostgreSQL through pgx. [All eleven](https://byteminus.com/open-source/#go) [GitHub](https://github.com/byteminus) - MIT - Source release in progress ### EduByte Open-source school platform. Laravel 12, Next.js 15 and PostgreSQL 16, built to be audited and run by the institutions that depend on it. [Visit EduByte](https://edubyte.byteminus.com/) [Details](https://byteminus.com/open-source/#edulab) [Launch post](https://byteminus.com/blog/introducing-edulab-open-source-school-platform/) Company ## A small team building AI software for Bangladesh. Byte Minus was founded in 2025 to build software that Bangladeshi businesses and institutions can rely on — in their language, on their payment rails, and on the connections they actually have. We work only on our own products and open source, and we keep them small on purpose: fewer moving parts, verified rather than assumed, and tested properly. There are eight bits in a byte; we ship seven. - Founded: 2025 - Focus: AI software for commerce and education in Bangladesh - Flagship: [Sells Pilot](https://sellspilot.com) (live) - Business model: SaaS subscriptions, prepaid in taka - Open source: [github.com/byteminus](https://github.com/byteminus) - Follow us: [Facebook](https://www.facebook.com/byteminus) [Instagram](https://www.instagram.com/byteminus/) [YouTube](https://www.youtube.com/@ByteMinus) [LinkedIn](https://www.linkedin.com/company/byte-minus/) - Contact: [contact@byteminus.com](mailto:contact@byteminus.com) From the blog ## Engineering notes. Write-ups from building Sells Pilot, EduByte and our open-source packages. [All articles](https://byteminus.com/blog/) 24 October 20264 min read ### [Eleven open-source Go packages for SaaS backends](https://byteminus.com/blog/go-packages-for-saas-backends/) Tenancy, permissions, approvals, audit logs, settings, feature flags, translations, media, notifications, backups and an admin panel, as MIT-licensed Go modules. - Open source - Go - PostgreSQL - Multi-tenant SaaS 15 October 20263 min read ### [BDPayGate: one Laravel API for every Bangladeshi payment gateway](https://byteminus.com/blog/bdpaygate-laravel-payment-gateway-bangladesh/) BDPayGate is our open-source Laravel package for bKash, Nagad, SSLCommerz and nine more gateways, with every payment verified server-side before an order is paid. - Open source - BDPayGate - Laravel - Payments 15 October 20264 min read ### [How to delete code safely: find who depends on it first](https://byteminus.com/blog/how-to-delete-code-safely/) A practical process for removing dead code, unused services and stale feature flags without breaking production, from first inventory to final removal. - Refactoring - Engineering practice FAQ ## Questions we get asked often. ### What does Byte Minus build? Our main product is [Sells Pilot](https://sellspilot.com), an AI sales assistant for online sellers in Bangladesh. We also build EduByte for schools, MessLedger, MoneyMate and Grad Ops, and publish [open-source packages for Laravel, Node.js and Go](https://byteminus.com/open-source/). ### Is Sells Pilot live? Yes. Sells Pilot is live at sellspilot.com with a free plan of 100 conversations a month, and paid plans at ৳1,500 and ৳4,500 a month. ### Which AI models does Sells Pilot use? Conversations run on Anthropic’s Claude by default, through a provider-agnostic layer that also supports Google Gemini and Vertex AI, OpenAI, Amazon Bedrock and Azure. OpenAI models handle speech-to-text and embeddings, and Gemini handles images. ### How do you stop the AI from quoting wrong prices? Every outgoing message passes a validation gate in code that checks each price and stock figure against the merchant’s database. A figure the catalog does not support never reaches the customer: the draft is rewritten or a person takes over. ### Do you take client projects? No. We work only on our own products and open-source projects. ## Partners, investors and press. Questions about Sells Pilot, partnerships, investment or press — write to us and a founder will reply. [contact@byteminus.com](mailto:contact@byteminus.com) [Sells Pilot](https://sellspilot.com)