Web search that works like a researcher.
Free, with no account or key. Each question gets the depth it deserves, the best pages are read in parallel, and chips mark which paragraphs rest on which source.
Features
Everything, in one window.
Mosaik has two places to be: Chat, for asking, and Mosaics, for making. Code, writing, research and art live inside the mosaics they belong to.
Chat, the way you want it to behave.
Any model on OpenRouter, your own instructions on top of Mosaik's, and a side channel for the questions that would otherwise derail you.
Chat
Any model, answers that read well.
Responses stream from any OpenRouter model, with one-click stop and a single line that shows what the model is doing (reasoning, searching, reading) and then what the turn amounted to. Every conversation starts with Mosaik's own guidance on clear answers, under your instructions, which win.
- Per-chat model, system prompt, temperature and output limit
- A prompt library of named, reusable system prompts
- Conversations name themselves, and never overrule a name you gave
- Branch any answer, export to Markdown or JSON, watch cost and context fill
Quick-ask
Side questions stay on the side.
Select words in any message and ask about them in a popover beside the chat. The answer is seeded with the conversation but never added to it, so your main thread stays exactly where you left it. A side conversation worth keeping opens as a chat of its own.
- Ctrl Shift K from any selection
- Clarify a term, translate a line or dig into a tangent without losing your place
One palette for finding and doing.
Ctrl K searches every conversation, titles and message bodies. Ctrl P, or / in an empty composer, runs any command or switches model.
Made to be read all day.
Drop in images and text files, and set the chat font, size, density, reading width and reduced motion to suit you.
Mosaics: projects of any kind.
A book, an app, a workshop, a hobby. A mosaic holds the brief, the goals, the open tasks and what has been learned, and carries them into every conversation inside it.
Home
Start from one sentence.
The Home page asks one question: What are we making today? Mosaik decides from your words whether that is a quick question or a project. A new project opens with your words already sent, and the brief fills in beside the conversation until one button makes it real.
- Every project is a card with a small mosaic that fills in as tasks get done
- Work is split into pieces, and each piece into short sessions
- Tasks, goals, memory and brief changes are proposed, then wait for you
Crew
A crew of specialists, side by side.
The lead splits larger work into a plan. You approve it once, with its spending cap in view, and writers, researchers, artists and coders work in lanes you can watch. Every result waits for you to accept, decline or redo.
- Coders work on a git branch of their own, merged only when you accept
- Background agents and reminders in an Activity panel
- Capability packs give each project the tools its work needs
Writing
A manuscript that keeps its story straight.
Ordered chapters beside your other documents: drag to reorder, read it through, and export it with a title page. A story bible of characters, places and facts keeps every draft, edit and continuity check consistent.
- Your voice, learned from pages you pick and yours to edit
- Continuity checks list contradictions, each with a fix as a tracked edit
- Export to Word, PDF, EPUB or Markdown
Research
Runs you watch and steer.
Review the plan before anything is searched, see every search and page as it happens, and add a question, skip one or change the focus mid-run. Reports show their working: numbered citations, and how each was researched, with the model and the cost.
- Follow-ups and claim checks continue the report's citations
- A source library, with pages marked Always read
- Notes kept from reports, sent to Writing as one document
Art
Characters who stay the same person.
Name a character in a prompt and their notes and pictures go along; draw a character sheet to give them a turnaround. A style locked for the whole mosaic, one of nine or your own, is kept by every picture, including those made by the crew.
- Edit a painted region while everything outside it stays the same
- Variations, upscaling to 4K, reference boards and side-by-side compare
- A gallery that remembers the exact prompt behind every picture
A coding agent on your real project.
Attach a folder to a mosaic and it gets a coding agent that works in your files, with safety nets you can see.
Code
It reads, edits, runs and checks.
The agent searches, reads, edits and runs your tests, reads its own diff back before it reports, and iterates on what fails. It can open a page it built in a private browser and look at it, so a web change is checked, not guessed.
- Fast, Standard and Deep tiers, each with a model you choose
- Background commands, like a dev server, that outlive the turn
- Rules per mosaic, beside
AGENTS.mdandCLAUDE.md
Control
Nothing runs away from you.
Every turn is checkpointed, so a turn or a single file can be undone, with or without git. In a git repository each session works on its own branch that you merge or throw away. Plans wait for Build it.
- Read-only and test commands run; installs and deletes ask; destructive ones are refused
- A workbench of Plan, Changes, Terminal, Files, History, Git and Cost
- Your own uncommitted changes are never committed or switched
The coding agent edits your files directly and runs commands in your project. It is not an operating-system sandbox: the command policy and the per-turn checkpoints are the safety net.
Be first in line.
Mosaik is in early preview. Join the waitlist and we'll invite you as places open up.