Founders and product teams
Turn a product idea into a working prototype, then iterate on design, application logic, data, and deployment in one environment.
Independent tool overview
Replit Agent 4 at a glance
Replit Agent 4 is Replit's current AI building system for turning plain-language requests into apps, designs, slides, animations, and data tools. Its strongest upgrade is coordinated parallel work, but production use requires a paid plan, careful cost controls, and human review.
Visit the official Replit Agent 4 site ↗
- Best for
- Building and shipping multi-part apps in Replit
- Outputs
- Apps, sites, slides, data tools, and animations
- Parallel agents
- 2 on Core; 10 on Pro
- Entry price
- Free Starter plan
- Paid pricing
- Core $20/mo; Pro $100/mo
- Billing
- Credits plus effort-based Agent usage
Overview
What Replit Agent 4 is
Replit Agent 4 combines design, planning, coding, runtime, collaboration, and publishing in one browser-based workspace. Users can start from a plain-language idea, explore interface options on a Design Canvas, convert a selected direction into an app, and ask Agent to implement front-end, back-end, database, authentication, and integration work.
The defining Agent 4 change is task-based parallel execution. Independent requests can run in isolated copies of a project, appear on a shared Kanban board, and be reviewed before their changes are applied to the main version. Replit's current pricing page lists two parallel agents on Core and ten on Pro.
Agent 4 is an active Replit capability rather than a separate product subscription. Starter can try Agent with daily credits and limited building, while Core and Pro unlock full builds, planning, connectors, and broader artifact support. Agent work is effort-priced, so the subscription price is only the starting point for budgeting.
Use cases
Who Replit Agent 4 is best for
The strongest fit depends on the job you need the product to complete, not the size of its feature list.
Parallel feature delivery
Split independent work across isolated Agent tasks and review each result before applying it to the main project.
Multi-format launch work
Create an app alongside supporting slides, data views, or animations while keeping project context together.
Capabilities
Core Replit Agent 4 features
Parallel Agent tasks
Agent can run independent tasks simultaneously, track them on a shared board, and apply completed changes back to the main project.
Design Canvas
Generate multiple interface directions on an open canvas, refine responsive and interaction states visually, and convert approved designs into working artifacts.
Task planning and sequencing
Agent turns requests into visible tasks, tracks dependencies, and can sequence work while the user reviews plans and results.
Full-stack building
The same workspace can cover front-end code, back-end behavior, authentication, databases, integrations, runtime checks, and publishing.
Shared project collaboration
Team members can open separate Agent threads, see work on a shared Kanban board, and review changes before merging.
Multiple artifact types
Agent 4 supports web and mobile apps, landing pages, data applications, slide decks, animations, and related project assets.
Process
How the Replit Agent 4 workflow works
Step 1
Describe the outcome
Start with the user, core workflow, constraints, and acceptance criteria rather than asking Agent to build an undefined app.
Step 2
Plan and explore designs
Use Plan Mode for scope and Design Canvas for interface variants before committing expensive Agent work to code.
Step 3
Dispatch bounded tasks
Separate independent front-end, back-end, data, and integration work so parallel tasks have clear ownership and fewer conflicts.
Step 4
Review before applying
Inspect each ready task, test the combined app, resolve conflicts, and verify deployment, data, permissions, and costs before launch.
Cost
Replit Agent 4 pricing and free plan
Replit subscriptions include platform credits, but Agent uses effort-based pricing for paid work and other Replit services draw from the same credit pool. Current list prices are $20 monthly for Core and $100 monthly for Pro; annual billing lowers the effective monthly price to $17 and $95 respectively.
Starter
Free
A limited trial path for exploring Agent and publishing one live project.
- Free daily Agent credits
- Limited Agent intelligence and building
- One published project
- Full build, Plan Mode, connectors, and conversion to full artifacts require a paid plan
Core
$20 monthly or $17/month billed annually
The individual and small-team plan for full builds and two parallel agents.
- $20 toward the most powerful models
- Two parallel agents
- Up to five collaborators
- Full build, Plan Mode, connectors, and unlimited workspaces
Pro
$100 monthly or $95/month billed annually
The professional plan with ten parallel agents, larger credits, and stronger collaboration support.
- $100 toward the most powerful models
- Ten parallel agents
- Up to fifteen collaborators and fifty viewers
- Turbo mode, credit rollover, premium support, and 28-day database rollback
Enterprise
Custom
The governed plan for organizations that need enterprise controls and infrastructure options.
- Custom seat limits
- SSO and SAML
- Advanced privacy controls
- Options such as single-tenant environments, static outbound IPs, and VPC peering
Pricing checked . Check current pricing at the source ↗
Assessment
Replit Agent 4 strengths and limitations
Where it stands out
- Design, code, data, runtime, collaboration, and publishing share one workspace.
- Parallel tasks can shorten delivery when work can be separated cleanly.
- Design Canvas supports comparison and refinement before changes enter production code.
- Shared task status gives teams more visibility than a single linear agent chat.
- Starter offers a practical way to test the workflow before paying.
- Budget alerts, hard caps, and per-task cost visibility help control usage.
What to consider
- Agent output is probabilistic and can introduce functional, security, design, or data errors.
- Paid Agent work uses variable effort-based pricing, so subscription cost does not guarantee a fixed number of completed features.
- Agent, deployments, databases, storage, and other services can draw from the same included credit pool.
- Starter cannot use full builds, Plan Mode, connectors, or most artifact conversion workflows.
- Core supports only two parallel agents, while ten-agent execution requires Pro.
- Parallel changes can still conflict and need review before they are applied to the main project.
- Turbo mode is Pro-only and costs more than standard modes.
- Teams must protect secrets, validate connected-service actions, test migrations, and review generated dependencies before production.
Compare
Replit Agent 4 alternatives
The right alternative depends on the specific output, workflow, controls and budget your project requires.
Coding
Replit Agent
Use the broader Replit Agent page for a general overview that is not centered on the Agent 4 release.
Explore Replit Agent →Coding
Lovable
Choose Lovable when the priority is a focused conversational web-app builder with a simpler product surface.
Explore Lovable →Coding
Bolt.new
Consider Bolt for browser-based full-stack generation when you prefer a code-first StackBlitz workflow.
Explore Bolt.new →Coding
Codex
Choose OpenAI Codex when you want a repository agent across desktop, CLI, IDE, cloud, and SDK workflows rather than Replit's hosted app platform.
Explore Codex →Questions
Replit Agent 4 FAQs
What is Replit Agent 4?
Replit Agent 4 is Replit's current AI building workflow for creating and modifying apps, designs, slides, data tools, animations, and other project artifacts from plain-language requests.
Is Replit Agent 4 free?
You can try Agent on the free Starter plan with daily credits and limited building. Full builds, Plan Mode, connectors, and conversion from designs to broader artifacts require Core or Pro.
How much does Replit Agent 4 cost?
Starter is free. Core is currently $20 monthly or $17 per month billed annually, and Pro is $100 monthly or $95 per month billed annually. Agent work can also consume credits through effort-based pricing.
How many agents can Replit run in parallel?
Replit's current pricing page lists two parallel agents on Core and ten on Pro. Starter does not list parallel-agent access.
Does Replit Agent 4 build production-ready apps automatically?
It can build and publish substantial applications, but no AI agent makes a project production-ready by itself. Review code, permissions, security, data migrations, tests, monitoring, deployment settings, and ongoing costs.
How is Replit Agent billed?
Paid Agent work uses effort-based pricing: simple requests generally cost less than complex builds. Included plan credits can also cover other Replit services, and users can track checkpoint costs and set budgets.
Bottom line
Our Replit Agent 4 verdict
Replit Agent 4 is strongest for people who value an integrated path from idea and design to a running, collaborative application. The task board and parallel execution are meaningful improvements for multi-part work, especially on Pro. Start with a constrained pilot, set a hard budget, and judge it on the quality and cost of a fully reviewed feature—not on how impressive the first generated screen looks.
Visit Replit Agent 4 website ↗Similar Coding Tools
View all Coding AI tools →
Claude Code Review
Code Review - Anthropic's multi-agent PR review system for Claude Code
Composer 2
Composer 2 - Cursor's powerful, cost-effective new in-house coding model
Glaze
Glaze - Raycast’s new tool to create local desktop apps from AI chat
Cursor 3
Cursor 3 - Cursor's agent-first interface for running parallel coding agents across repos
AI training for the future of work.
Get access to all our AI courses, hundreds of real-world AI use cases, live expert-led workshops, an exclusive network of AI early adopters, and more.
AI Courses
Get unlimited access to all of our current & upcoming industry-specific AI courses for the duration of your subscription.
Daily Guides
To keep up with the rapid pace of AI, our team publishes AI implementation guides daily. Our library contains 300+ practical use cases to automate real-world work.
Workshops
Join weekly, live, interactive sessions with industry leaders who are at the forefront of AI for hands-on implementation guidance and exclusive insights.
Community
Network with an exclusive community of AI-first professionals who are working smarter with AI. Learn how early adopters are using AI in their work and businesses.