1 min readFreemium

Sim

Sim is an open-source AI workspace for building, deploying and managing AI agents and workflows with 270+ integrations and every major LLM.

// at a glance

Is Sim free?
Freemium. Partly. Sim has a free plan, with paid plans for more features or usage.
Category
#Automation
Website
sim.ai ↗
Sim logo

What is Sim?

Sim is a platform for building AI agents and agentic workflows. You can design an agent on a visual canvas, describe it in chat, or write code, then connect it to over 270 integrations and models from OpenAI, Anthropic, Google, xAI, Mistral, Perplexity and others. Finished workflows can run on a schedule, from a webhook or as an API endpoint.

Beyond the builder, Sim gives teams the pieces agents need in production: knowledge bases for your documents, tables, file storage, execution logs and governance controls such as permission groups and spend limits. The codebase is open source on GitHub and can be self-hosted with Docker or Kubernetes, while the hosted cloud version handles infrastructure for you.

Main Features

  • Visual, chat or code-based agent building
  • 270+ integrations and all major LLM providers
  • Knowledge bases, tables and file storage
  • Deploy workflows as APIs, schedules or webhooks
  • Logs, permission groups and spend limits
  • Open source and self-hostable

How to Get Started with Sim

  1. Create a free account at sim.ai.
  2. Start a new workflow and describe the agent you want, or drag blocks onto the canvas.
  3. Connect the apps and models it needs.
  4. Test it, then deploy it as an API, schedule or webhook.

Sim Pricing

The free plan includes 1,000 one-time credits and one workspace. Pro costs $25 per user per month, Max costs $100 per user per month, and Enterprise is custom. The open-source version can be self-hosted.

Who Should Use It?

  • Developers building AI agents
  • Operations teams automating multi-step work
  • Startups prototyping AI features
  • Companies that want to self-host agent infrastructure
  • No-code builders moving beyond simple automations

Sim Alternatives

  • Dust: Build custom AI agents connected to company knowledge.
  • N8N AI: Workflow automation with AI nodes and self-hosting.
  • Lindy AI: AI assistants that automate everyday business tasks.

Frequently Asked Questions

Is Sim free?

Yes, there is a free plan with 1,000 one-time credits, and the open-source version can be self-hosted. Paid plans start at $25 per user per month.

Is Sim open source?

Yes. Sim's codebase is public on GitHub and can be self-hosted with Docker or Kubernetes.

Which models does Sim support?

Major providers including OpenAI, Anthropic, Google, xAI, Mistral and Perplexity.

Try Sim