Sim

Visual workspace to build, deploy, and govern AI agents with workflows, knowledge bases, and multi-model support.

Freemium Automation & Agents
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What is Sim?

Sim is a visual, end-to-end agent builder where developers design AI agent workflows on a canvas, connect models (OpenAI, Anthropic, Google, Groq, Ollama, and more) and 60+ integrations, then deploy them through APIs, webhooks, or scheduled jobs. It also adds enterprise governance: access control, spend limits, audit logs, and self-hosting. The core runtime is open source with 18,000+ GitHub stars.

Key features

  • Visual drag-and-drop canvas for building agent workflows
  • Multi-model support: OpenAI, Anthropic, Google, Groq, Cerebras, Ollama
  • 60+ pre-built integrations (Gmail, Slack, Notion, Airtable, Supabase, Pinecone)
  • Deployment via API, SDK, plugins, webhooks, and scheduled jobs
  • Knowledge base with synced sources for agent memory
  • Structured data tables and shared file storage for agents
  • Run logging and tracing with block-by-block debugging
  • Central governance: SSO/SCIM, permission groups, spend controls, audit records, self-hosting

Pros

  • Open-source runtime (18K+ GitHub stars) with self-hosting option
  • End-to-end platform: build, deploy, monitor, and govern agents in one place
  • Agent-native observability with per-run tracing and cost tracking

Cons

  • Positioned as an n8n alternative, so switching teams face migration effort
  • Enterprise governance features likely sit on higher tiers, increasing cost for teams

Sim at a glance

PricingFreemium
CategoryAutomation & Agents
Platformsweb, api
Official websitewww.sim.ai
ai-agentsworkflow-builderautomationopen-sourcellm-orchestrationchatbotsno-code

How to choose the right Automation & Agents tool

Automation and agent tools promise to do work for you, so judge them on reliability before cleverness. Map the exact workflow you want to automate, then check the tool's integrations cover every app in that chain — one missing connector breaks the whole flow. Look for clear triggers, sensible limits, and logs you can read when something goes wrong, because something eventually will. For agents that act on your behalf, approval controls matter: you should be able to review messages, purchases or changes before they happen, especially at the start. Pricing usually scales with runs or tasks, so estimate your monthly volume honestly. Start with one low-risk workflow, measure the time it truly saves, and expand from there.

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Sim FAQs

What is Sim?

Sim is a visual, end-to-end agent builder where developers design AI agent workflows on a canvas, connect models (OpenAI, Anthropic, Google, Groq, Ollama, and more) and 60+ integrations, then deploy them through APIs, webhooks, or scheduled jobs. It also adds enterprise governance: access control, spend limits, audit logs, and self-hosting. The core runtime is open source with 18,000+ GitHub stars.

What are the main features of Sim?

Sim offers Visual drag-and-drop canvas for building agent workflows, Multi-model support: OpenAI, Anthropic, Google, Groq, Cerebras, Ollama, 60+ pre-built integrations (Gmail, Slack, Notion, Airtable, Supabase, Pinecone), Deployment via API, SDK, plugins, webhooks, and scheduled jobs, Knowledge base with synced sources for agent memory, Structured data tables and shared file storage for agents, Run logging and tracing with block-by-block debugging and Central governance: SSO/SCIM, permission groups, spend controls, audit records, self-hosting.

How much does Sim cost?

Sim follows a freemium model: a free tier is available, and paid plans unlock higher limits and advanced features. Check its official website for current plan prices.

What are the pros and cons of Sim?

Strengths of Sim include Open-source runtime (18K+ GitHub stars) with self-hosting option; End-to-end platform: build, deploy, monitor, and govern agents in one place; Agent-native observability with per-run tracing and cost tracking. On the downside, Positioned as an n8n alternative, so switching teams face migration effort; Enterprise governance features likely sit on higher tiers, increasing cost for teams.