Dify Workflow vs Chatflow 2026: Which One Should You Build?
Dify offers two app types that look similar but behave differently. Choosing wrong means rebuilding. Here's the decision rule.
💡 What You Will Learn
Dify offers two app types that look similar but behave differently. Choosing wrong means rebuilding. Here's the decision rule.
📜 Table of Contents
The Confusion Is Real
In Dify (152,348 stars, 2026-08-14), you create either a Chatflow or a Workflow app, and the first-time builder often picks the wrong one. The difference is not visual style - it is state: Chatflow remembers the conversation, Workflow does not.
Chatflow (Conversation Apps)
- Message-by-message with conversation memory.
- Built for chatbots, customer support, and assistants.
- Has chat history, variables that persist across turns, and user feedback loops.
- Slower to design because every turn matters.
Build a Chatflow when: the user has a back-and-forth with the app - asking follow-ups, refining requests, multi-turn tasks.
Workflow (Single-Shot Automation)
- One input in, one output out, no memory.
- Built for automation: summarization, classification, extraction, routing.
- Deterministic-ish: same input gives same-ish output, which makes testing easier.
- Cheaper to run: no context stacking across turns.
Build a Workflow when: the task is a transformation - PDF to summary, query to SQL, email to action item.
The Decision Rule (30 Seconds)
Ask: does the user need to ask a follow-up? - Yes -> Chatflow. - No -> Workflow.
If you catch yourself storing 'previous answer' in a Workflow to fake memory, you should have built a Chatflow.
Practical Differences That Bite
- Variables: Chatflow persists variables across turns; Workflow variables are per-run.
- Debugging: Workflow runs are isolated - easier to debug and test in CI.
- Cost: Chatflow re-sends history every turn (more tokens); Workflow is single-shot.
- Use cases overlap: a 'support bot' sounds like a Workflow but is a Chatflow 9 times out of 10.
FAQ
Can I convert between them? No direct conversion - you rebuild the graph. Pick right the first time.
Which is cheaper? Workflow - single-shot means no history re-sends.
Can a Workflow call a Chatflow? Yes - Dify allows cross-app calls, so automation can invoke conversational apps.
Which is better for RAG? Both support knowledge bases; Chatflow keeps the conversational follow-ups that RAG chat usually needs.
