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AI · alternatives · 2026

24 alternatives to Sim

Open-source workspace for AI agents and workflows

Sim is an open-source workspace designed for building agentic workflows. It allows users to connect AI agents and workflows to over 1,000 integrations and language models. Built for developers working with artificial… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1

    Hey HN, Waleed here. We're building Sim (https://sim.ai/), an open-source visual editor to build agentic workflows. Repo here: https://github.com/simstudioai/sim/. Docs here: https://docs.sim.ai. You can run Sim locally using Docker, with no execution limits or other restrictions. We started building Sim almost a year ago after repeatedly troubleshooting why our agents failed in production. Code-first frameworks felt hard to debug because of implicit control flow, and workflow platforms added more overhead than they removed. We wanted…

    Dec 2025 · github.com · its alternatives →

  2. 2
    SimplAIfree tier, from $5/mo▲589

    Hey HN, I've been building SimplAI for the past several months — it's a platform for building, testing, and deploying LLM-powered agents and multi-step workflows. The problem I kept running into: spinning up an AI agent pipeline means stitching together prompt management, tool calling, memory, evals, and deployment — often from scratch every time. SimplAI tries to be the layer that handles all of that so you can focus on what your agent actually does. What it does: - Visual + code-first workflow builder for chaining LLM calls, tools, and APIs - Built-in prompt versioning and A/B testing…

    2025 · simplai.ai · its alternatives →

  3. 3SB

    Sim is an open-source AI workspace for building, deploying, and managing AI agents. Teams connect over 1,000 integrations and major LLMs, provide agents context with knowledge bases, tables, and files, and design logic visually, conversationally, or with code. Sim offers end-to-e

    Sep 2026 · betalist.com · its alternatives →

  4. 4

    Build AI-powered Agents -- in Minutes

    2025 · langflow.org · its alternatives →

  5. 5

    Build your AI agent in minutes to delegate the daily grind

    Dec 2025 · workspace.google.com · its alternatives →

  6. 6

    Build AI automations & agents using natural language

    2025 · docs.n8n.io · its alternatives →

  7. 7
    Construct Computerfree tier, from $9/mo▲378

    We are building Construct Computer a cloud OS where autonomous AI agents ("Constructs") live and do your day to day work. You can observe them in real-time through a desktop OS frontend. The idea is agent-native infrastructure: instead of agents being API calls, they're persistent processes with their own compute, storage, and network identity. With integrations with a vast ecosystem of business tools, the Construct Agent can do anything from scheduling meetings, preparing documents, to deep researching the web, join meetings, and automate long running business operations with minimal human…

    Aug 2026 · construct.computer · its alternatives →

  8. 8
    Questflow▲364

    AI automation workspace

    2024 · questflow.ai · its alternatives →

  9. 9

    Collaborate with agents for work

    2025 · useportals.dev · its alternatives →

  10. 10
    Vokal▲441

    A collaboration space for 10x teammates with their Al agents

    Jun 2026 · vokal.team · its alternatives →

  11. 11

    Any process to AI with all LLM models

    2024 · officely.ai · its alternatives →

  12. 12

    OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.

    Apr 2026 · open-agents.dev · its alternatives →

  13. 13
    Missions▲181

    Create custom workflows for Slack

    2017 · missions.ai · its alternatives →

  14. 14
    Campus▲310

    One project space for humans and AI agents

    Jul 2026 · campus.flutterflow.io · its alternatives →

  15. 15

    Watch your AI coding agents build, live in 3D

    Jul 2026 · termiprotocol.com · its alternatives →

  16. 16

    Workspace for your AI Agents

    16d ago · orgcomputers.com · its alternatives →

  17. 17
    MeshPilot▲102

    Your AI workspace for terminals, tasks, and agents

    Jun 2026 · meshpilot.in · its alternatives →

  18. 18

    Codex-powered agents for teams.

    Apr 2026 · openai.com · its alternatives →

  19. 19

    Find, build, and use AI agents in workflow automation

    2023 · questflow.ai · its alternatives →

  20. 20

    Hi HN! I want to share our latest project at NEXA AI. We developed AI agent foundation models designed to transform how developers create AI agent powered apps. One major challenge we've observed with current human-computer interactions is that many simple, one-step tasks become unnecessarily complex, multi-step workflows due to limitations of current GUIs. AI agents can solve this, but existing AI agent models are slow and costly. To tackle these issues, we built lightweight AI agent models based on our Octopus V2, small language models for function calling (You can learn more about our…

    2024 · nexa4ai.com · its alternatives →

  21. 21
    AgentOS▲100

    Manage AI agents, tasks, workspaces from one control layer

    Jun 2026 · sapienx.app · its alternatives →

  22. 22

    Open-source runtime for durable AI agents

    May 2026 · orkes.io · its alternatives →

  23. 23

    Living space where teams and agents work together

    May 2026 · github.com · its alternatives →

  24. 24

    All your Agents in one app and persistent context

    Apr 2026 · subspace.build · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →