Agent 3

Agent 3

Replit
+
+

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About

Replit Agent 3 is the most autonomous, AI-powered builder yet for creating production-ready applications entirely through natural-language prompts. You describe the app or website idea, and Agent automatically handles everything: setting up the full-stack environment, designing interfaces, configuring databases, managing dependencies, and integrating authentication or third-party services like Stripe or OpenAI. It offers two development modes: a visual-first “Start with a design” option that generates a clickable prototype in just minutes before enabling full functionality, or a “Build the full app” mode that constructs a functioning application, including frontend, backend, and integrations, in around 10 minutes. Agent 3 also self-tests within a browser workflow, identifying bugs, fixing them, and rerunning tests in a continuous reflection loop that is up to 3x faster and 10x more cost-efficient than traditional testing models.

About

Grok Code Fast 1 is a high-speed, economical reasoning model designed specifically for agentic coding workflows. Unlike traditional models that can feel slow in tool-based loops, it delivers near-instant responses, excelling in everyday software development tasks. Built from scratch with a programming-rich corpus and refined on real-world pull requests, it supports languages like TypeScript, Python, Java, Rust, C++, and Go. Developers can use it for everything from zero-to-one project building to precise bug fixes and codebase Q&A. With optimized inference and caching techniques, it achieves impressive responsiveness and a 90%+ cache hit rate when integrated with partners like GitHub Copilot, Cursor, and Cline. Offered at just $0.20 per million input tokens and $1.50 per million output tokens, Grok Code Fast 1 strikes a strong balance between speed, performance, and affordability.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Product managers in search of a solution to build, test, and deploy fully functioning apps using plain-language prompts, guided development modes, and high-autonomy AI assistance

Audience

Grok Code Fast 1 is designed for developers, engineering teams, and coding platform providers who need a fast, cost-effective AI model optimized for real-world software development

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$20 per month
Free Version
Free Trial

Pricing

$0.20 per million input tokens
$0.20 per million input tokens
$1.50 per million output tokens
$0.02 per million cached tokens
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Replit
Founded: 2016
United States
replit.com/agent3

Company Information

SpaceXAI
Founded: 2023
United States
x.ai

Alternatives

Alternatives

JetBrains Junie

JetBrains Junie

JetBrains
Agent 3

Agent 3

Replit
Grok 4.5

Grok 4.5

SpaceXAI
WebSparks

WebSparks

WebSparks.AI
Grok Build

Grok Build

SpaceXAI

Categories

Categories

Integrations

C
C++
Dessix
GitHub
GitHub Copilot
Go
Grok Build
Java
JavaScript
Kilo Code
Laravel
Microsoft Foundry Models
OpenCode
OpenRouter
Roo Code
Rust
Shiori
Stripe
Visual Studio
Visual Studio Code

Integrations

C
C++
Dessix
GitHub
GitHub Copilot
Go
Grok Build
Java
JavaScript
Kilo Code
Laravel
Microsoft Foundry Models
OpenCode
OpenRouter
Roo Code
Rust
Shiori
Stripe
Visual Studio
Visual Studio Code
Claim Agent 3 and update features and information
Claim Agent 3 and update features and information
Claim Grok Code Fast 1 and update features and information
Claim Grok Code Fast 1 and update features and information