Ghostwriter logo

Ghostwriter

AI app development and deployment platform

Build, test, and deploy full-stack applications with AI assistance and automatic model selection.

AI coding toolsai codingapp developmentmodel routingdeployment
Ghostwriter homepage screenshot
Ghostwriter homepage (replit.com), captured 2026-10-02

What is Ghostwriter?

Ghostwriter is Replit's AI coding assistant, now part of a broader platform that helps you build applications from idea to production. It uses intelligent model routing to pick the best AI model for each task, so you get quality results without manually choosing models. The platform also integrates with Databricks for governed data access, letting you build context-rich apps with live enterprise data.

You start by describing what you want to build. Ghostwriter generates code and helps you iterate. When your app is ready, Replit Agent automatically provisions a database and creates a preview environment for testing. You can review changes in isolation before going live, keeping test data separate from real business data.

This suits developers who want AI assistance throughout the app lifecycle, from coding to deployment. It also helps enterprise teams combine AI development with governed data. The blog mentions features like black-box pen testing and enterprise governance tools, but does not detail pricing or a free plan on this page.

Ghostwriter features

  • Intelligent model routing: Automatically picks the best AI model for each coding task to balance quality and cost.
  • Replit Agent: Lets the main agent decide which subagents and model tiers to use as tasks unfold.
  • Databricks integration: Connects to governed enterprise data with native Lakebase support for live data access.
  • Automated preview deploys: Creates a separate preview environment so you can test apps before going live.
  • Black-box pen testing: Simulates real attacks to find vulnerabilities that code-only scans might miss.

What you can do with Ghostwriter

  • Build full-stack applications with AI-generated code and automatic model selection.
  • Deploy apps that combine live Databricks warehouse data with app-created information.
  • Test applications in isolated preview environments before production release.
  • Run security simulations to identify hidden vulnerabilities in your apps.

How to get started with Ghostwriter

  1. Sign up for Replit and access Ghostwriter from the platform.
  2. Describe the app you want to build and let the AI generate code.
  3. Use preview deploys to test, then deploy to production with automatic database provisioning.

Tips for better results with Ghostwriter

  • Describe your full app idea in one message so Ghostwriter can route the right model and generate coherent code from the start.
  • Use Replit Agent to handle subagent selection automatically, letting it choose cheaper models for routine tasks while you focus on complex logic.
  • Connect Databricks data early in your build so Ghostwriter can generate context-rich queries against live governed data, not just sample placeholders.
  • Test each change in the isolated preview environment before merging, keeping your real business data separate from experimental updates.

Ghostwriter pricing

Ghostwriter’s homepage does not list prices. Check replit.com for current plans.

What to check before you rely on Ghostwriter

  • Check whether your Replit plan includes Ghostwriter and Replit Agent, since the blog mentions free mode but does not state pricing or limits on this page.
  • Verify how the Databricks integration handles data governance and access controls for your specific enterprise setup before using live data.
  • Confirm what export formats and deployment options are available for your built app, as the website does not list them explicitly.

Who Ghostwriter is for

Ghostwriter suits developers, enterprise teams and data-driven app builders. If that is not you, the AI coding tools below may fit better.

Similar tools compared with Ghostwriter

ToolWhat it isPricing
GhostwriterAI app development and deployment platformSee website
TabnineAgentic quality engineering platform for AI codeSee website
CodeRabbitAI pull request reviewer and prioritizerFree trial
CursorAI coding agent for ambitious softwareSee website
Claude CodeAI coding agent for terminal and IDEPaid

Ghostwriter FAQ

What does Ghostwriter do?

Ghostwriter is Replit's AI coding assistant that helps you build applications. It generates code, routes tasks to the best AI model automatically, and supports deployment with preview environments and database provisioning.

Is Ghostwriter free?

The blog mentions Replit introduced a Free Mode, but it does not specify whether Ghostwriter is included or what limits apply. Check Replit's pricing page for current plan details.

Who is Ghostwriter for?

It is for developers who want AI-assisted coding, and for enterprise teams that need governed data access. The blog highlights features like Databricks integration and governance tools for larger organizations.

Can I use Ghostwriter with my own data?

Yes, through the Databricks integration. You can connect to governed enterprise data and build apps that use live warehouse data, with automatic database provisioning when you deploy.

What can Ghostwriter export or connect to besides Databricks?

The website mentions Ghostwriter integrates with Databricks for governed data access and native Lakebase support. It does not list other specific export destinations or third-party connections on this page. To see what else it can connect to, check the Replit integrations or documentation sections on their site.

Which devices or platforms can I use Ghostwriter on?

The website does not specify which devices or operating systems Ghostwriter runs on. It describes using Ghostwriter through Replit's platform for building and deploying apps, but it does not mention desktop, mobile, or browser requirements. For platform details, check Replit's system requirements or help pages.

Does Ghostwriter require an account to use?

The website does not explicitly state whether an account is required to use Ghostwriter. It shows sign-up and log-in options for Replit, which suggests you likely need a Replit account to access the tool. For exact account requirements, check Replit's sign-up page or terms of service.

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