Replit is one of the best ways for one person to turn an idea into a running app. Coshell is a different thing: the shared live session your whole team and one coding agent work in, on the codebase you already have.
Replit turns one person's prompt into a deployed app.Coshell puts a whole team in one live session with one agent, on your real code.
Not an app builder, and not a private agent for each person. One shared live session your team works in together, on your own codebase. Every line below is running in production today.
In Replit, each collaborator opens their own chat thread with the agent, in their own task, merged back afterward. In Coshell several people prompt one shared agent in one live session, on one running filesystem and terminal, and watch the same work land together.
Replit prices by seat tier and meters agent usage in credits. Coshell is free to self-host, no seats: run a drive on your own machine, up to five teammates in your org, unmetered, and no per-seat charge.
Replit's agent runs on its managed models, paid in credits. In Coshell you bring your own provider keys across 70+ models, scoped per drive, and usage is billed by your provider, not marked up by us.
A Coshell drive works against the codebase you already have and pushes to your own repositories as ordinary git, so your branching, review, and CI stay exactly as they are. Your source of record never moves to us.
| Replitbrowser IDE · build an app | Coshellhosted · multiplayer | |
|---|---|---|
| What it is | A browser IDE and platform to build and deploy apps from a prompt | A shared cloud session where a team works with one AI agent |
| AI collaboration model | Each person prompts their own agent thread; tasks isolated, merged later | One shared live agent the whole team prompts together |
| Human collaboration | Real-time multiplayer code editing | One shared session: filesystem, terminal, and browser preview |
| Pricing basis | Per-seat tiers, agent usage metered in credits | Free to self-host, no seats |
| Team size | Capped by plan tier | Up to 5 teammates per drive |
| Models | Managed agent models, paid in credits | Bring your own keys, 70+ models |
| Where code lives | Hosted on Replit, with GitHub sync | Your existing repo; pushes to your real git |
| Foundation | Proprietary agent | Built on OpenCode, open source |
| Best for | Solo builders and prototypes, zero-setup prompt to deployed app | A team building together with one agent on real code |
Replit is the fastest way to build an app solo. Coshell is where a team builds with one agent.
These are not mutually exclusive. Spin up a new app on Replit, then bring your team into a Coshell drive to build on a real codebase together, with one agent, free to self-host, no seats. Coshell runs your own repo, on your own model keys, and pushes to your real git.
Coshell is built on OpenCode, the open agent engine, and adds the shared session your whole team works in together.
For teams who want to work with an AI agent together on their own codebase, yes. They are different shapes, though: Replit is the best way for one person to go from a prompt to a deployed app in the browser, with hosting and a database bundled in. Coshell is the shared live session your whole team works in, with one agent, on the repo you already have. Many people would use Replit to spin up a new app and Coshell to build with their team on an existing one.
Replit has real-time multiplayer code editing, where several people type in the same project. What is different in Coshell is the AI collaboration: in Replit each person prompts their own agent thread and the work is reconciled afterward, while in Coshell several people prompt one shared agent in one live session at the same time. Multiplayer editing of code is not the same as multiplayer prompting of one agent.
Yes, on every plan. Coshell runs 70+ models on your own provider keys, scoped per drive, and usage is billed by your provider with no markup from us. Replit's agent runs on its own managed models, paid through Replit credits.
In your own git. A Coshell drive runs your existing repository and pushes to the repositories you already use as ordinary git commits, so your branching, review, and CI stay as they are. With Replit, the project lives on Replit's hosted platform, with GitHub as a two-way sync.
Open a drive in the browser, or attach from the CLI. Your whole team works with one agent in one live session, on the code you already have.