New AI models launch practically every week, and keeping up with which ones to use for specific workflows is a job in itself. Consider this article your living reference. At Zapier, we run every model through AutomationBench. It's our benchmark for testing how well models carry out multi-step workflows, not just static prompts. Below, I'll walk through every major AI provider available on Zapier, the models you can plug into your Zap workflows today, and what each one is best for based on Zapier
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Which AI models can you automate on Zapier? (Gemini 3.5 Flash, GPT-5.5 Pro, and more)
Source: The Zapier BlogMay 20, 2026
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