A practical field guide from Automation Ace.
Short answer: ChatGPT is a general AI assistant for thinking, writing, and analysis. Zapier Sidekick is Zapier's AI workspace, where you ask for work in plain language and it acts in your connected apps. Zapier Agents are AI teammates you configure to pursue a goal on their own, often on triggers or schedules. The short version: ChatGPT helps you think, Sidekick helps you do, Agents do it for you.
Short answer
- ChatGPT: general reasoning and writing; connects to apps through its own connectors or tools like Zapier MCP.
- Sidekick: an AI workspace inside Zapier, built on your app connections, with memory and skills.
- Zapier Agents: autonomous AI teammates for recurring jobs.
Side-by-side comparison
| Zapier Sidekick | ChatGPT | Zapier Agents | |
|---|---|---|---|
| What it is | Zapier's AI workspace for working alongside AI | A general-purpose AI assistant | AI teammates configured to pursue goals |
| How you use it | Ask for work in plain language, inside Zapier | Chat, write, analyze, research | Set up a job, tools, and triggers; review its work |
| Reach into your apps | Built on Zapier app connections | Through its own connectors or tools such as Zapier MCP | Built on Zapier app actions |
| Who drives | You, in the moment | You, in the moment | The agent, on triggers or schedules |
| Memory | Conversations, notes, and documents in your space | Depends on product settings | Depends on agent configuration |
| Repeatability | Skills you write and share | Custom instructions and saved prompts | Agent instructions and behaviors |
| Best for | Your own day-to-day work across apps | Thinking, writing, and analysis | Recurring jobs that run without you |
Sidekick was in closed beta at the time of writing, and all three products change quickly, so check current capabilities before deciding.
Zapier Sidekick
Sidekick starts from Zapier's strength: connections to the apps you already use. You describe a task and it works out which apps and actions it needs, keeps your conversations and files in a personal space, remembers past work, and can be taught skills that you can share with your team. It shines for the many small, varied tasks that make up a workday. See what Sidekick by Zapier is.
ChatGPT
ChatGPT is a general-purpose assistant: excellent for drafting, research, analysis, and reasoning. It can connect to other tools through its own features, and through Zapier MCP it can use Zapier actions. Its center of gravity is the conversation; acting across business apps depends on how you connect it. See connecting Zapier MCP to ChatGPT and other AI clients.
Zapier Agents
Zapier Agents are configured for a job, such as researching new leads or triaging requests, and can run when something happens or on a schedule, without you starting each run. They suit recurring work with judgment involved. Start narrow and review their activity; see Zapier Agents vs Zapier MCP vs AI by Zapier and what Zapier specialists build with agents.
Where Zapier MCP fits
MCP is not a fourth assistant; it is a bridge. It lets AI clients you already use, such as ChatGPT or Claude, take actions through Zapier. If your team lives in ChatGPT, MCP brings Zapier's actions there; if your team lives in Zapier, Sidekick brings AI there. See what Zapier MCP is.
Which one should you use?
| If you want to… | Use |
|---|---|
| Brainstorm, write, or analyze a document | ChatGPT or another general assistant |
| Get something done across your work apps right now | Sidekick |
| Have an AI handle a recurring job without you starting it | Zapier Agents |
| Let ChatGPT or Claude take actions in your apps | Zapier MCP |
| Run the same fixed steps thousands of times | A Zap |
Using them together
- Draft and think in ChatGPT; act in your apps with Sidekick.
- Prototype a routine in Sidekick; turn it into an Agent once it runs the same way every time.
- Move high-volume fixed steps to Zaps, which are cheaper and more predictable.
- Apply the same governance everywhere: limited app access, review for risky actions, and clear ownership; see AI Guardrails and Human in the Loop.
For the bigger picture, read beyond Zaps: how Sidekick is turning automation into an AI-powered workspace.
Frequently asked questions
What is the difference between Zapier Sidekick and ChatGPT?
ChatGPT is a general-purpose AI assistant for thinking, writing, and analysis that can reach apps through its own connectors or tools such as Zapier MCP. Zapier Sidekick is Zapier’s AI workspace, built on your Zapier app connections, where you ask for work in plain language and it acts in your apps, with memory and shareable skills.
What is the difference between Zapier Sidekick and Zapier Agents?
Sidekick is a workspace where you work alongside AI in the moment. Zapier Agents are AI teammates you configure to pursue a goal on their own, often on triggers or schedules, without you starting each run.
Can ChatGPT use Zapier?
Yes. Through Zapier MCP, AI clients such as ChatGPT and Claude can use Zapier actions in your connected apps. Limit which actions are exposed, especially ones that change data.
Which should I use: Sidekick, ChatGPT, or Zapier Agents?
Use ChatGPT to brainstorm, write, or analyze; Sidekick to get work done across your apps right now; Zapier Agents for recurring jobs that run without you; Zapier MCP to let ChatGPT or Claude act in your apps; and Zaps for fixed, high-volume steps.
Can I use Sidekick, ChatGPT, and Zapier Agents together?
Yes. Many teams draft in ChatGPT, act in their apps with Sidekick, turn proven routines into Agents, and move high-volume fixed steps into Zaps, with the same governance across all of them.
Disclaimer: Sidekick by Zapier (Zapier's AI workspace) was in closed beta at the time of writing, with access through a waitlist; names, features, availability, and limits may change, so confirm current details in Zapier's help center. This article may include links to apps, products, or services; some links may be affiliate links, which means Automation Ace may earn a commission at no extra cost to you.