Sim

What Sim does

Sim is an open-source AI workspace platform that enables teams to build, deploy, and manage AI agents. Founded in 2025 in San Francisco and backed by Y Combinator, the platform connects to 1,000+ third-party integrations and supports all major foundation model providers (OpenAI, Anthropic Claude, Google Gemini, Mistral, and xAI Grok). Users can compose agents through three interfaces: a visual drag-and-drop workflow builder with 11 pre-built templates (OCR invoice processing, PR review, knowledge base Q&A, etc.), a conversational Chat command center, and a programmatic API/CLI/SDK with Model Context Protocol (MCP) support. The workspace also includes built-in Tables (database), Files (document store), and Logs (full execution tracing with inputs, outputs, cost, and duration), and supports real-time multiplayer collaboration with live cursors and role-based access control.

The technical core is a multi-agent orchestration layer with primitives such as Agent, Router, Function, Condition, Parallel, Loop, Guardrails, Evaluator, and Human-in-the-Loop blocks. Enterprise-grade features (SOC2 Type 2, SSO, SCIM, self-hosting via Docker or Kubernetes) make the platform deployable inside regulated environments. Sim maintains 27.8k GitHub stars and claims over 100,000 builders across startups and Fortune 500 companies. In January 2026 the company appeared at CES 2026 as a Synopsys partner targeting AI-driven automotive simulation, signaling vertical expansion.

Sim monetizes through a four-tier subscription model: a free Community tier (1,000 credits), Pro at $25/month (6,000 credits), Max at $100/month (25,000 credits), and a custom-priced Enterprise tier with unlimited shared workspaces, SOC2, SSO/SCIM, and self-hosting. The go-to-market combines a product-led growth (PLG) self-serve motion with an emerging enterprise field-sales motion. The company has raised approximately $7.5M total — a $500K YC round in June 2025 and a $7M Series A in November 2025 led by Standard Capital with participation from SV Angel, Y Combinator, Liquid 2 Ventures, Perplexity, and TwentyTwo VC. The team remains small (1-10 employees) and is actively hiring engineers and designers.

Name

Sim

Website

https://sim.ai

Company type

Private

Founded year

2025

Operating status

Operating

Headcount range

1–10 employees

Short description

Sim (Sim.ai) is an open-source AI workspace platform that enables teams to build, deploy, and manage AI agents across 1,000+ integrations and all major LLMs, serving over 100,000 developers, startups, and Fortune 500 enterprises via a freemium-to-enterprise subscription model.

Ownership category

akta.pro rank

Product category

AI Agent Orchestration Platform

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Enterprise Foundation Model Integration & APIs (Connectors, Governance, Deployment) (HDAAACAO)

Keywords

• AI agent platform
• Workflow automation
• Multi-LLM orchestration
• Open-source AI workspace
• Enterprise integrations

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription Plans (Community, Pro, Max): Tiered subscription model with a free Community tier (1,000 credits, 5GB storage, 1 personal workspace), a $25/month Pro tier (6,000 credits/mo, 50GB storage, up to 3 workspaces), and a $100/month Max tier (25,000 credits/mo, 500GB storage, up to 10 workspaces). Credits provide execution minutes for AI agent runs. The Pro and Max plans offer unlimited log retention versus the 7-day limit on Community.
2. Enterprise Custom Plan: Custom-priced enterprise tier offering unlimited shared workspaces, SSO, SCIM, SOC2 compliance, self-hosting options, custom credits and infra limits, and dedicated support. Sold through direct sales motion targeting Fortune 500 and large organizations.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Sim is an open-source AI workspace platform that enables teams to build, deploy, and manage AI agents through a visual workflow builder, conversational Chat interface, or programmatic API. The platform connects 1,000+ integrations and supports all major LLMs (OpenAI, Anthropic Claude, Google Gemini, Mistral, xAI Grok) to automate multi-step workflows such as OCR processing, email triage, code review, and knowledge base Q&A. It is delivered via tiered subscriptions (Community, Pro, Max) and an Enterprise plan offering SSO, SCIM, SOC2, and self-hosting.

Product overview

Sim is an open-source AI workspace platform providing a unified environment to build, deploy, and manage AI agents. The platform offers three access methods: visual workflow builder with pre-built templates, conversational Chat interface for natural-language control, and programmatic API for developers. Core workspace features include Chat (AI command center), Tables (built-in database), Files (document store), and Logs (execution tracing). The platform connects to 1,000+ third-party integrations and multiple LLM providers (OpenAI, Anthropic Claude, Google Gemini, Mistral, xAI Grok). Teams features enable real-time collaboration with shared workspaces, live cursors, and role-based access control. Enterprise tier adds SSO, SCIM, SOC2 compliance, self-hosting, and dedicated support. The platform is trusted by over 100,000 builders including startups and Fortune 500 companies.

Differentiator

Problem solved

Functional benefit

Brands

• SimStudio: Open-source agent builder product of Sim.ai, mentioned in context of competitors misappropriating its code.

Quantifiable outcome

• Over 100,000 builders at startups and Fortune 500 companies use Sim
• +2 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration144 records

AI capability8 records

Feature7 records

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Relevance AI: Relevance AI is an AI agent platform that lets teams build and deploy AI 'workforces' with a visual builder, multi-LLM support, and a focus on enterprise GTM. It is a direct peer to Sim in the AI agent platform category, particularly competing for the same SMB-to-enterprise mid-market segment.
• n8n: n8n is a source-available workflow automation platform with a visual node-based editor, 400+ native integrations, and AI agent capabilities. It is the closest open-source direct peer to Sim, competing on visual builder UX, integration breadth, and a similar PLG-plus-enterprise GTM.
• LangChain: LangChain is the leading open-source framework for building LLM-powered applications and agents, with LangGraph for multi-agent orchestration and LangSmith for observability. It targets the same developer persona as Sim and competes for AI agent builder mindshare.
• Make (formerly Integromat): Make is a visual no-code automation platform with 1,500+ integrations and advanced branching/logic features. It directly competes with Sim's visual workflow builder for SMB and mid-market automation use cases and has been adding AI agent capabilities.
• Flowise: Flowise is an open-source drag-and-drop UI for building LLM applications and agents, built on top of LangChain. It is a direct open-source competitor to Sim's visual workflow builder, with a similar developer-led adoption model.
• Lindy AI: Lindy AI is an AI agent platform that lets users build personalized AI assistants with a no-code builder, 3,000+ integrations, and a freemium model. It competes directly with Sim for the same developer/SMB audience building AI agents to automate workflows.

Broad incumbents

• Zapier: Zapier is the dominant no-code workflow automation platform with 7,000+ app integrations and tens of thousands of paying customers. It has launched AI-powered features and agents, positioning it as a broad incumbent that Sim competes against for automation and integration-driven workflow use cases.
• Microsoft Copilot Studio: Microsoft Copilot Studio is a low-code platform for building custom AI agents and copilots within the Microsoft 365 and Power Platform ecosystem. As a broad incumbent with native enterprise distribution, it represents the primary bundled-agent threat to Sim's enterprise pipeline.

Emerging players

• Voiceflow: Voiceflow is an AI agent platform for designing, deploying, and scaling conversational and autonomous agents across customer service, with an enterprise focus. It overlaps with Sim in the agent-building category but is differentiated by its deep roots in conversational AI and CX use cases.
• CrewAI: CrewAI is an emerging AI agent orchestration framework focused on multi-agent collaboration with role-based agent design. It targets a similar agent-building developer audience as Sim, though it is more framework-oriented while Sim is a more visual, integration-heavy platform.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/simdotai
• GitHubgithub.com/simstudioai/sim
• LinkedInlinkedin.com/company/simdotai

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds2 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sim