Your AI Assistant
Lives in Your Inbox
No app. No login. No website. Just email byte@firstlyte.co and get intelligent responses in seconds.
Opens your email client and copies the address to clipboard
About Byte AI
Byte AI is a free, open-source AI assistant that runs entirely over email. Send a question to byte@firstlyte.co — with optional image, PDF, or spreadsheet attachments — and a thoughtful reply lands in your inbox in under 30 seconds. No app, no login, no account. Powered by Anthropic Claude Haiku 4.5 for visual analysis and DeepSeek V4 Flash for text. Conversations remember context for 30 days per thread.
How It Works
Three steps. Zero friction. AI that meets you where you already are.
Send an Email
Compose a message to byte@firstlyte.co. Ask anything, attach files — no account needed.
Byte Thinks
AI analyzes your message, images, and attachments. Smart routing picks the best model.
Get Your Reply
A thoughtful, styled response lands in your inbox. Usually under 30 seconds.
What Byte Can Do
Powerful AI capabilities delivered through the simplest interface imaginable — your inbox.
Ask Anything
Questions, code help, writing, analysis — Byte handles it all with sharp, thoughtful responses.
Image & PDF Analysis
Attach screenshots, photos, PDFs, or spreadsheets. Byte sees and understands visual content.
Deep Thinking
Include "THINK" in your email for complex problems. Byte takes its time and reasons through it.
Conversation Threads
Just reply to keep the conversation going. Byte remembers context for 30 days per thread.
Works Everywhere
Phone, laptop, tablet, smartwatch — if it sends email, it works with Byte. Zero setup required.
Why Is This Free?
Byte is a community service project. Not a product. Not a startup. We built this because AI should be accessible to everyone — not locked behind apps, accounts, and paywalls.
“If you can send an email, you can use AI. That's the whole point.”
No data selling. Your emails are processed and forgotten. Conversations auto-delete after 30 days.
No hidden costs.No premium tier, no “upgrade to unlock” tricks. What you see is what you get.
Transparent about the future.We may introduce helpful, relevant suggestions down the road to keep the lights on — but they won't be the spammy kind, and we'll let everyone know well in advance.
This is built for the community, by the community. Your feedback shapes what Byte becomes.
Frequently Asked Questions
Everything you might wonder about a free, no-signup AI assistant that lives in your inbox.
Email byte@firstlyte.co with a question or attach files (images, PDFs, spreadsheets). Byte processes your message and replies in under 30 seconds — usually faster. There is no app to install, no account to create, and no web UI to log into.