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Fastgen

Tool A

Fastgen

Low-code API and workflow builder for developers

4.6
freemiumadvancedVerified
Feature Score7/22
Relevance AI

Tool B

Relevance AI

Build and deploy custom AI agents and workflows

4.7
freemiumintermediateFeaturedTrendingVerified
Feature Score12/22
Relevance AI interface screenshot

Choose this if…

Fastgen

Fastgen
  • 1You need power-user and advanced features

Choose this if…

Relevance AI

Relevance AI
  • 1You need Multimodal
  • 2You need Image Input
  • 3You need Web Search
  • 4Community rates it higher (⭐4.7 vs 4.6)

Overview

FastgenFastgenSince 2023-01

Fastgen enables developers to design production API routes, cron events, and complex operations within a visual structure. It unites speed-oriented visual mapping canvases with manual code injection modules.

Engineered explicitly to replace cumbersome standard application infrastructure server layers with visual cloud components.

Platforms
WebAPI
Best For
DevelopersTeams
Categories
Automation AICode AI
Relevance AIRelevance AISince 2021-08

Relevance AI is a platform designed to create AI workforces by combining LLM agents, tasks, and data pipelines. It provides an intuitive low-code workspace to build autonomous agents that execute multi-step operations.

Established in Sydney, Australia, Relevance AI supports multiple foundation models and complex state management features.

Platforms
WebAPI
Best For
TeamsDevelopersIndividuals
Categories
Automation AIAgent AI

Features Comparison

22 total
FastgenFastgen
Feature
Relevance AIRelevance AI
Core AI Capabilities
Free Tier
Free Tier
Free Tier
Multimodal
Multimodal
Multimodal
Voice Input
Voice Input
Voice Input
Image Input
Image Input
Image Input
Image Output
Image Output
Image Output
Video Input
Video Input
Video Input
Video Output
Video Output
Video Output
Audio Output
Audio Output
Audio Output
Web Search
Web Search
Web Search
Code Execution
Code Execution
Code Execution
Memory
Memory
Memory
Developer & API
API Access
API Access
API Access
Open Source
Open Source
Open Source
Works Offline
Works Offline
Works Offline
Plugins
Plugins
Plugins
Self-Hostable
Self-Hostable
Self-Hostable
Browser Extension
Browser Extension
Browser Extension
Productivity & Teams
No Signup Required
No Signup Required
No Signup Required
Customizable
Customizable
Customizable
File Upload
File Upload
File Upload
Collaboration
Collaboration
Collaboration
White Label
White Label
White Label

Pricing & Plans

FastgenFastgenfreemium
Free TierActive

Free tier covers personal hobby projects and initial script scaffolding.

Paid Plan

Professional team accounts start at $25/mo.

Get Started
Relevance AIRelevance AIfreemium
Free TierActive

Free plan includes 100 credits per month to test agents.

Paid Plan

Team plans start at $19/mo up to custom enterprise tiers.

Get Started

Pros & Cons

FastgenFastgen

Pros

Rapid scaffolding for production API routes

Integrated storage databases and user auth nodes built in

Extremely fast execution speeds across cloud edge deployments

Cons

Not suited for non-technical creators lacking standard programming foundations

Relevance AIRelevance AI

Pros

Powerful low-code visual configuration workspace

Extensive multi-agent execution pipeline loops

Seamless dataset handling and indexing controls

Cons

Credit usage mapping can be complex to monitor closely

Use Cases

FastgenFastgen
codingproductivity
Relevance AIRelevance AI
productivity

The Verdict

Fastgen

Fastgen

7/22 features · ⭐4.6

Fastgen enables developers to design production API routes, cron events, and complex operations within a visual structure. It unites speed-oriented visual mappi

Relevance AI

Relevance AI

12/22 features · ⭐4.7

Relevance AI is a platform designed to create AI workforces by combining LLM agents, tasks, and data pipelines. It provides an intuitive low-code workspace to b

Both Fastgen and Relevance AI are capable AI tools serving distinct use cases. Relevance AI leads on raw feature breadth (12 vs 7), making it a stronger choice if you need maximum capability.

Frequently Asked Questions

What is the main difference between Fastgen and Relevance AI?

Fastgen — "Low-code API and workflow builder for developers" — focuses on automation-ai, code-ai, while Relevance AI — "Build and deploy custom AI agents and workflows" — targets automation-ai, agent-ai. The key differences lie in their feature sets and pricing models.

Is Fastgen free to use?

Yes, Fastgen offers a free tier. Free tier covers personal hobby projects and initial script scaffolding.

Is Relevance AI free to use?

Yes, Relevance AI offers a free tier. Free plan includes 100 credits per month to test agents.

Which is better: Fastgen or Relevance AI?

It depends on your use case. Fastgen is rated ⭐4.6 and is best suited for developers, teams. Relevance AI is rated ⭐4.7 and is ideal for teams, developers, individuals. Use this comparison to evaluate features that matter to your workflow.

Does Fastgen have an API?

Yes, Fastgen provides API access for developers and integrations.

More AI Matchups

Still deciding?

Try another comparison or explore the full AI tools directory.