Agent harnesses

Replit Agent

In-browser AI software engineer for building apps, with Design and Chat surfaces

Commercial

What it is

Our note

Persistent project context is supplied through replit.md, a checked-in instruction file that gives Agent lasting knowledge of coding style, brand rules, naming conventions, and product constraints; conversation history stays inside a thread, and Replit's own guidance is to start a fresh thread when context accumulates unrelated decisions.

At a glance

Vendor
Replit
Business model
Commercial
Pricing
Core $20/mo ($18/mo billed annually), Pro $100/mo ($90/mo annually), Enterprise custom; effort-based usage pricing on top pricing page ↗
Self-hosting
No, hosted only
Access
web app

Facts verified nov 10, 2026; added nov 10, 2026. Vendor facts come from the vendor’s own pages; benchmark claims are self-reported unless we say otherwise.

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