Merlin vs Retell AI
Merlin and Retell AI are both Conversational AI 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 | Merlin | Retell AI |
|---|---|---|
| Vendor | Merlin AI | Retell AI |
| Rating | ★ 4.4 | ★ 4.5 |
| Pricing | Freemium | Pay-as-you-go |
| Platforms | Web, Extension, iOS, Android | API, Web |
| Key features | Multi-model chat, Page & video summaries, Translation tools | Low-latency voice with barge-in, Phone and web voice agents, LLM plus telephony plumbing |
| Headquarters | San Francisco, USA | San Francisco, USA |
| Founded | 2022 | 2023 |
| Open source | No | No |
Key differences
- Retell AI has a higher user rating (4.5★ vs 4.4★).
- Merlin is Freemium, while Retell AI is Pay-as-you-go.
- Merlin runs on Web, Extension, iOS, Android; Retell AI runs on API, Web.
Frequently asked questions
Is Merlin or Retell AI better?
By user rating, Retell AI scores higher (4.5★ vs 4.4★). Both are capable Conversational AI tools, so review the feature comparison for your use case.
Which is cheaper, Merlin or Retell AI?
Merlin is Freemium and Retell AI is Pay-as-you-go. Check each product page for current plan details.
Are Merlin and Retell AI open source?
No — neither Merlin nor Retell AI is open source.