Dify vs Vapi
Dify and Vapi are both AI Platforms tools in our directory. This side-by-side comparison covers pricing, user ratings, supported platforms, key features and open-source status so you can decide which one fits your needs.
Side-by-side comparison
| Attribute | Dify | Vapi |
|---|---|---|
| Vendor | Dify (LangGenius) | Vapi |
| Rating | ★ 4.6 | ★ 4.5 |
| Pricing | Freemium | Pay-as-you-go |
| Platforms | Cloud, Self-hosted, API | API |
| Key features | Visual workflow & agent builder, RAG pipeline with document ingestion, 100+ model providers | Sub-second voice agent loop, BYO models (STT/LLM/TTS) or defaults, Phone numbers, transfers & IVR flows |
| Headquarters | Remote (open source) | San Francisco, USA |
| Founded | 2023 | 2023 |
| Open source | Yes | No |
Key differences
- Dify has a higher user rating (4.6★ vs 4.5★).
- Dify is Freemium, while Vapi is Pay-as-you-go.
- Dify is open source (its code is public), while Vapi is proprietary.
- Dify runs on Cloud, Self-hosted, API; Vapi runs on API.
Frequently asked questions
Is Dify or Vapi better?
By user rating, Dify scores higher (4.6★ vs 4.5★). Both are capable AI Platforms tools, so review the feature comparison for your use case.
Which is cheaper, Dify or Vapi?
Dify is Freemium and Vapi is Pay-as-you-go. Check each product page for current plan details.
Are Dify and Vapi open source?
Dify is open source, while Vapi is proprietary.