Vertex AI Agent Builder vs Zapier Agents
as AI assistants see them, week of 2026-10-19
Vertex AI Agent Builder and Zapier Agents tie on visibility, each named in 22 of 73 answers, but Zapier edges ahead on overall score, 16 versus 12. Zapier scores highest with ChatGPT at 20, while Vertex trails across the board, peaking at 14 with ChatGPT. Vertex swept all 3 answers for "best platforms for building AI agents," while Zapier swept five of its own questions, including alternatives to n8n and best pricing for a small team. Interestingly, Vertex is never named for n8n alternatives or pricing questions, and Zapier is never named for developer framework or LangChain alternative questions. Head-to-head, Vertex leads in 11 questions, Zapier in 7, with 7 ties.
Head to head
| metric | Vertex AI Agent Builder | Zapier Agents |
|---|---|---|
| score | 12 | 16 |
| questions won | 13 | 9 |
By assistant
Vertex AI Agent Builder
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 14 | 20% of answers | #5.8 |
| Claude | 11 | 30% of answers | #11.3 |
| Gemini | not sampled this week | ||
| Perplexity | 13 | 33% of answers | #5.5 |
Zapier Agents
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 20 | 30% of answers | #2.2 |
| Claude | 16 | 35% of answers | #8.7 |
| Gemini | not sampled this week | ||
| Perplexity | 16 | 28% of answers | #3.4 |
Where they differ
Only Vertex AI Agent Builder gets named for
- What's the best platform to build an AI agent that connects to my company's data?
- Which AI agent framework should a developer choose?
- What are the best open-source AI agent frameworks?
- What are the best alternatives to OpenAI AgentKit?
- What's the best platform to build and deploy AI agents for a startup?
- What's the best tool for building multi-agent systems?
- What are the best alternatives to Pydantic AI?
- What are the best alternatives to LangChain?
- What's the best platform for an agency building AI agents for clients?
Only Zapier Agents gets named for
- What's the best no-code tool to build an AI agent?
- Which AI agent platform is best for a non-technical founder?
- Which AI agent platform has the best pricing for a small team?
- What's the best tool to build an AI agent that answers customer emails?
- What are the best alternatives to n8n?
More comparisons
- Dify vs Vertex AI Agent Builder
- Make vs Vertex AI Agent Builder
- Mastra vs Vertex AI Agent Builder
- Microsoft Copilot Studio vs Vertex AI Agent Builder
- Amazon Bedrock AgentCore vs Vertex AI Agent Builder
- Pydantic AI vs Zapier Agents
Not sold on either?
Scores count how often each assistant names a product, weighted by position. How the score works · Full AI agent builders leaderboard