Best AI Agent Platforms in 2026: A Comparison of 11 Tools

Choosing an AI agent platform comes down to how you deploy and monitor agents, not how many integrations a vendor advertises. This comparison scores eleven platforms against the same five criteria so you can match the tool to your actual constraint.

TL;DR

• Sim is open-source and self-hostable, with deployment monitoring (Logs), agent command control (Chat), and a built-in database (Tables) in one workspace. Fewer integrations than the incumbents.
• n8n self-hosts under a fair-code Sustainable Use License, not true open source. Execution logs and step re-runs, no agent command layer.
• Zapier has 8,000+ integrations but configures agents through prompts only, with no SDK, no API invocation, and no evaluation tooling.
• Make added AI Agents in April 2025 on an automation-first design that lacks memory, hosted dev environments, and explainability.
• Gumloop targets non-technical teams with Teams-native deployment, but discloses no pricing and no agent-level monitoring.
• Vellum, MindStudio, Dust, Kore.ai, Rasa, and Lindy serve narrower niches.

What to look for in an AI agent platform

Five criteria separate a platform you can operate from one you merely build on.

Deployment model. Self-hostable platforms like n8n and Sim let you keep data inside your own network. SaaS-only tools like Vellum's Pro tier or Make put your agents on the vendor's infrastructure.

License status. Fair-code and closed-source terms restrict what you can modify or resell. The distinction matters more than most teams realize until procurement asks.

Native observability. This decides whether you can see what a running agent actually did, or only guess.

Multi-LLM flexibility. Determines whether you can switch providers without rebuilding.

Agent lifecycle control. Versioning, rollback, and direct command over live agents mark the difference between deploying once and managing continuously.

Sim

Sim treats deployment monitoring, agent control, and data storage as core parts of the workspace rather than integrations you assemble later. Most visual builders hand you a canvas and leave the operational work to you. Sim ships the operational layer alongside the builder.

Logs addresses blind deployment. Once an agent goes live, most platforms give you scattered execution records, so you learn about failures from users rather than dashboards. Logs records what each deployed agent does in production, which turns a silent failure into something you can trace back to the step that broke.

Chat handles controlling agents already running. An agent that misfires in production needs to be inspected, paused, or redirected without a full redeploy. Chat gives you that command layer over live agents: talk to Sim and it inspects, corrects, and manages everything in natural language.

Tables removes the external database glue that agent projects accumulate. Agents need to read and write structured data, and without a built-in store you end up wiring in Postgres or Airtable and maintaining that connection yourself. Tables puts the database inside the workspace, so state and records live where the agent runs.

Sim is Apache 2.0 licensed with the full source on GitHub, self-hostable via Docker, and supports every major model provider. It connects to 1,000+ integrations.

The honest limitation: that number is well behind Zapier's 8,000+ and Make's 1,000+ mature connectors, and the community is younger, which means fewer prebuilt templates for niche tools. If your bottleneck is reaching an obscure SaaS product, check the integration list before you commit. If your bottleneck is operating agents once they're live, that tradeoff reads differently.

Best for: engineering teams that want an open-source, self-hostable workspace where lifecycle management is built in rather than bolted on.

Try Sim free or browse the repo.

n8n

n8n calls itself a fair-code platform, and that word matters more than the "open" label most people assume. It ships under the Sustainable Use License and a separate Enterprise License, not Apache 2.0. You can read the source, self-host it, and write custom nodes, but the license restricts commercial resale and reserves some features for paid tiers.

The self-hosting story is strong. You start with npx n8n or a Docker image, reach the editor at localhost:5678, and connect to more than 1,500 integrations plus an HTTP node for any other API. Model choice stays open across OpenAI, Anthropic, Google, and self-hosted options like Ollama, and switching providers doesn't force you to rebuild a workflow.

Observability covers execution logs, error notifications, and re-running a single step without restarting the workflow. That answers "what did this run do" cleanly, which is enough for most workflow automation. It stops short of a dedicated module for inspecting or steering a fleet of live agents.

n8n is the most mature self-hosted option in this comparison and the community around it is large and active. If fair-code licensing clears your legal review, it's a strong default.

Best for: teams that want mature self-hosted workflow automation with wide integration coverage and can accept fair-code licensing.

Zapier

Zapier turned its Zaps automation product into AI task execution through Zapier Agents, currently in open beta, and the whole thing runs on prompt configuration alone. There is no agent SDK and no programmatic way to define an agent, so what you can build stops at what the UI form accepts. The Platform CLI exists only for building app integrations, not agents.

The integration breadth is genuinely hard to match, and for many teams it's the only criterion that matters. Zapier connects to 8,000+ apps and exposes 30,000+ actions, with native connectors to Box, Dropbox, Google Drive, and Notion that pull live data into an agent's context. If your bottleneck is reaching data spread across dozens of SaaS tools, few platforms beat it.

That breadth sits on top of thin agent controls. You cannot chat with a Zapier Agent or trigger one through an API call. Agents fire only from Zapier's integration triggers, with no chat widget, no interactive Slack messages, and no rich UI components. Observability stops at basic activity logging, and Zapier ships no evaluation tooling, so you cannot grade or test how an agent responds before it runs in production.

Best for: existing Zapier customers who want to add AI to workflows already spanning many apps, and who do not need programmatic control, API invocation, or agent evaluation.

Make

Make.com launched its AI Agents capability in April 2025, and the design choice shows in what it does well and what it skips. Make built agents into its existing scenario builder, so an agent runs as another step inside a workflow rather than as a standalone runtime. That approach suits teams already automating processes across Make's 1,000+ app integrations, and it keeps everything inside one visual builder, which is one of the better ones in this category.

The gaps appear when you compare Make against platforms built for agents first. A third-party feature comparison marks Make.com as lacking memory and context handling, meaning agents do not retain state across interactions. The same table shows no hosted dev or production environments and no explainability features. You get detailed execution logs for troubleshooting, but not a versioned staging-to-production path.

Make also deploys agents on a schedule rather than exposing them as an API, a chat endpoint, or a hosted runtime. For recurring automated jobs that call an LLM, that model works fine. For an agent you want to invoke on demand or embed in a product, it falls short.

Best for: business and operations teams already running Make scenarios who want to add AI decision steps to existing automations.

Gumloop

Gumloop builds for business teams that want to skip the engineering queue. Its clearest strength is native Microsoft Teams deployment. Agents live inside Teams channels, respond to @mentions, pull data, generate reports, and run multi-step actions from plain-language prompts. For an operations lead or support manager who already runs the day inside Teams, that removes the usual gap between a request and an automated response.

The enterprise controls back this up. Gumloop offers role-based access, single sign-on, and audit logging, which are the boxes IT needs checked before a non-technical team touches customer or finance data.

Two gaps are worth knowing before you scope a rollout. Gumloop publishes no pricing, so you cannot size a deployment without a sales conversation. And audit logging is the only observability on offer, which gives you a compliance trail rather than run-level tracing or debugging.

Best for: non-technical business teams already working inside Microsoft Teams who want drag-and-drop automation with enterprise access controls.

Vellum, MindStudio, Dust, Kore.ai, Rasa, and Lindy

Vellum targets professional teams that want LLM orchestration and observability with a visual workflow builder, prompt versioning, and retrieval-augmented generation (pulling your own documents into the model's context). Its pricing is the catch. The free tier caps at 50 prompt executions a day, then jumps straight to $500/month on Pro, with no on-demand overage and a five-user cap on both tiers. Vellum is closed-source. VPC and on-premises deployment exist only on Enterprise annual contracts estimated in the tens of thousands per year.

MindStudio solves the opposite problem. Where Vellum leans technical, MindStudio is a no-code visual builder aimed at non-technical teams who need agents running in 15 minutes to an hour. It supports 200+ models across OpenAI, Anthropic, Google, Meta, and Mistral with no separate API key management, and bills model usage at provider cost with zero markup. A built-in analytics dashboard tracks per-agent cost, token usage, and error rates. It stays closed-source, with self-hosting reserved for Enterprise.

The remaining four fall outside verifiable third-party research, so they're described by category rather than specifics. Rasa is the open-source conversational AI framework, built around natural-language understanding and dialogue management, favored by engineering teams that want full control over intent handling. Kore.ai serves enterprise conversational AI at scale, typically for large contact-center and virtual-agent deployments. Dust positions itself as a team knowledge-agent tool, connecting internal data sources so employees can query company context. Lindy builds no-code personal and business assistants for email, scheduling, and routine workflows.

Confirm pricing, deployment model, and observability for these four directly with each vendor.

Comparison table

Cells marked "not disclosed" reflect gaps in available research rather than missing features.

How to choose

Match your situation to one platform and skip the rest.

Your integrations are the whole job. Choose Zapier. 8,000+ apps is a moat, and if the work is moving data between SaaS tools with an LLM step in the middle, nothing here beats it. You're trading away programmatic control and evaluation tooling to get it.

You already run Make or n8n. Stay put and turn on the native AI agent features. Your workflows already exist and the agent layer bolts onto them. Accept that observability stops at execution logs.

Your team lives in Microsoft Teams and doesn't write code. Choose Gumloop. Teams-native deployment and role-based access control let business users run automations without an engineering queue. Budget for a sales call since pricing isn't public.

You need self-hosting plus lifecycle control. Choose Sim. When you deploy agents to production and need to watch what they do, correct them mid-run, and give them somewhere to store state without gluing in an external database, Logs, Chat, and Tables handle it in one Apache 2.0 workspace. This is the case Sim is built for, and it's the one where the integration count matters least.

You need enterprise conversational AI at scale. Choose Kore.ai for high-volume customer-facing bots, or Rasa when you want an open-source framework and control over the underlying models.

Conclusion

Pick by the axis that decides your project, not by feature count.

Zapier and Make win on integration breadth, so choose them when you already run automations there and want AI added to existing scenarios. n8n is the mature self-hosted default if fair-code licensing clears legal. Gumloop and Lindy fit non-technical teams that value accessible builders over runtime control. Kore.ai suits enterprise conversational AI at scale.

If deployment monitoring and command over running agents are what decide the purchase, Sim is built for that specific problem, and Logs, Chat, and Tables handle lifecycle work you'd otherwise stitch together yourself.

Start building on Sim or self-host from the repo.

Narrowing by a specific constraint? Open-source AI agent platforms filters to self-hostable options, LangGraph alternatives covers the code-first category, 10 best n8n alternatives and best Zapier alternatives approach the same market from the automation-tool side.

FAQ

What is the difference between an AI agent platform and an AI automation platform?

An automation platform runs fixed workflows you define step by step, like Make's scenario builder firing triggers and actions in sequence. An AI agent platform lets the model decide the next step at runtime based on context, so the path isn't hard-coded. Sim, Vellum, and Rasa sit on the agent side, while Zapier and Make started as automation tools and added agent features later.

Does a fair-code license count as open source?

No. n8n uses the Sustainable Use License, which keeps source code visible and self-hostable but restricts commercial resale, unlike a permissive Apache 2.0 license. If your compliance team requires true open source with no usage limits, verify the exact license terms before committing.

What does agent lifecycle management mean in practice?

It covers versioning a deployed agent, rolling back to a prior version, and controlling agents already running in production. Sim handles this through Logs for deployment monitoring and Chat for command over live agents.

Do I need self-hosting for enterprise compliance?

Not always, but data residency rules often push you there. Vellum only offers VPC and on-premises deployment on its Enterprise tier, while Sim and n8n are self-hostable from the start, keeping sensitive data inside your own network perimeter.

Which AI agent platform has the most integrations?

Zapier, at 8,000+ apps and 30,000+ actions. n8n has 1,500+, Sim and Make each have 1,000+. Integration count matters most when your agents span many SaaS tools and least when they run a few deep workflows in production.