Definable AI
$9/month (Plus, 25k credits) · $19/month (Pro, 100k+ credits)
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Definable AI vs Zapier
Zapier is a rule-based workflow tool. Definable is an AI-native automation platform. Where Zapier needs you to design every if/then branch, Definable lets you describe the goal in English and lets the AI orchestrate the steps — across 1000+ of the same integrations.
Zapier built the modern app-automation category. It's deep, mature, and supports thousands of apps. But it's also fundamentally rule-based: you draw zaps step-by-step, code conditional branches by hand, and pay per-task. AI in Zapier is a step you call out to, not the orchestrator.
Definable inverts that. The Assistant is an AI agent that calls integrations as tools — describe "every Monday morning, pull last week's deals from HubSpot, summarise them, and post the digest to #revenue with a Loom-friendly version" and the AI figures out the steps. Memory persists across runs. Knowledge bases ground every decision. And because the AI has 50+ models behind it, you pick the model that fits each task.
Pricing matters too. Zapier's middle tier is $30+/month and meters tasks. Definable Plus is $9/month with 25,000 credits — a "credit" covers a model call, an integration call, and surrounding orchestration. Pro at $19/month gives 100,000+ credits and unlimited knowledge bases.
Feature comparison
Capability
Definable
Zapier
Natural-language workflow creation
✓
—
Visual workflow builder
✓
✓
AI as orchestrator (not just a step)
✓
—
Persistent memory across runs
✓
Storage by Zapier
OAuth2 app integrations
1000+
6,000+ (read-heavy)
Built-in 50+ AI models
✓
Pay-per-call
Private knowledge bases
✓
—
Photo / video generation
✓
—
Approval gates + audit trail
✓
Limited
Free plan
5,000 credits/mo
100 tasks/mo
Pricing
Zapier
$30/month (Professional, 2k tasks)
Definable credits cover model calls, tool invocations, and orchestration — typically further than Zapier tasks.
Verdict
Choose Zapier if you have rigid, well-defined workflows and want the largest integration catalogue. Choose Definable if you want AI to design and run the workflow — with knowledge, memory, and 50+ models built in — at a third of the cost.