1. OpenAI API
OpenAI · San Francisco · AI agent & LLM development platforms · 4.4/5
GPT models and tools via API.
Pay as you go
Free trial
AI agent & LLM development platforms · Alternatives
Best Retell AI alternatives in India (2026)
Retell AI is an ai agent & llm development platforms product from Retell, San Francisco, priced at Pay as you go. We compared 20 alternatives on published price, free plan, platforms and made-in-India support: 8 have a free plan, 2 are built in India.
Quick answer
The closest alternatives to Retell AI are OpenAI API (Pay as you go), Google Vertex AI (Pay as you go), Together AI (Pay as you go), Fireworks AI (Pay as you go) and E2E TIR (Pay as you go). Semantic Kernel is the top-ranked option with a free plan. Published prices in this list start at ₹6,000/month.
Why businesses look for a Retell AI alternative
There is no free plan
Retell AI has no free tier. 8 alternatives do, which lets you test with real data before you pay.
Indian support and GST
Retell AI is built in United States. 2 alternatives are made in India, where GST, TDS and UPI are usually handled natively and support runs on IST.
Retell AI alternatives compared
Ranked by how closely each product matches Retell AI's category, pricing model, platforms and business size, then by rating. Prices exclude GST.
| # | Software | Starting price | Free plan | Platforms | Made in India | Rating | Compare |
|---|---|---|---|---|---|---|---|
| — | Retell AI (current) | Pay as you go | No | Web | No | 4.3/5 | — |
| 1 | OpenAI API | Pay as you go | No | Web | No | 4.4/5 | |
| 2 |  Google Vertex AI | Pay as you go | No | Web | No | 4.4/5 | |
| 3 |  Together AI | Pay as you go | No | Web | No | 4.4/5 | |
| 4 |  Fireworks AI | Pay as you go | No | Web | No | 4.4/5 | |
| 5 |  E2E TIR | Pay as you go | No | Web | Yes | 4.5/5 | |
| 6 |  Mistral AI Platform | Pay as you go | No | Web | No | 4.3/5 | |
| 7 |  Vapi | Pay as you go | No | Web | No | 4.3/5 | |
| 8 |  Bland AI | Pay as you go | No | Web | No | 4.3/5 | |
| 9 |  Anyscale | Pay as you go | No | Web | No | 4.2/5 | |
| 10 |  Voyage AI | Pay as you go | No | Web | No | 4.2/5 | |
| 11 |  Obviously AI | ₹6,000/mo | No | Web | No | 4.1/5 | |
| 12 |  Lyzr | $0.08 per agent run (managed cloud); $0.03 per agent run (VPC/on-prem) | No | Web | No | 3.9/5 | |
| 13 |  Semantic Kernel | Free | Yes | Web | No | 4.5/5 | |
| 14 |  Vercel AI SDK | Free | Yes | Web | No | 4.5/5 | |
| 15 |  Portkey | Free plan | Yes | Web | Yes | 4.5/5 | |
| 16 |  Botpress AI | Free plan | Yes | Web | No | 4.5/5 | |
| 17 |  Stack AI | Free plan | Yes | Web | No | 4.4/5 | |
| 18 |  Braintrust | Free plan | Yes | Web | No | 4.3/5 | |
| 19 |  Modal | Free plan | Yes | Web | No | 4.3/5 | |
| 20 |  Jina AI | Free plan | Yes | Web | No | 4.3/5 |
Top 10 Retell AI alternatives in detail
2. Google Vertex AI
Google · Mountain View · AI agent & LLM development platforms · 4.4/5
ML and generative AI platform.
Pay as you go
Free trial
3. Together AI
Together · San Francisco · AI agent & LLM development platforms · 4.4/5
Open model inference cloud.
Pay as you go
Free trial
4. Fireworks AI
Fireworks · Redwood City · AI agent & LLM development platforms · 4.4/5
Fast inference for open models.
Pay as you go
Free trial
5. E2E TIR
E2E Networks · New Delhi · AI agent & LLM development platforms · 4.5/5
Indian GPU cloud and AI platform.
Pay as you go
Free trial
Compared with Retell AI
- Built in India (New Delhi)
6. Mistral AI Platform
Mistral AI · Paris · AI agent & LLM development platforms · 4.3/5
Open-weight models and API.
Pay as you go
Free trial
Pay as you go
Free trial
Pay as you go
Free trial
9. Anyscale
Anyscale · San Francisco · AI agent & LLM development platforms · 4.2/5
Ray-based AI compute.
Pay as you go
Free trial
10. Voyage AI
Voyage AI (MongoDB) · Palo Alto · AI agent & LLM development platforms · 4.2/5
Embedding models.
Pay as you go
Free trial
Retell AI alternatives by what you need
Lowest published price
Free Retell AI alternatives
Indian alternatives to Retell AI
How to choose a Retell AI alternative
- Start with a hosted model API and a simple RAG setup; add orchestration when workflows grow.
- Track cost per request early.
- Check data residency for sensitive data.
Retell AI alternatives — FAQs
What is the best alternative to Retell AI in 2026?+
The closest matches to Retell AI on App Advisor are OpenAI API (Pay as you go), Google Vertex AI (Pay as you go), Together AI (Pay as you go). They are ranked by how closely their category, pricing model, platforms and target business size match Retell AI, then by rating. The best choice depends on your team size and budget.
Is there a free alternative to Retell AI?+
Yes. 8 of the 20 alternatives listed have a free plan or are free: Semantic Kernel (Free), Vercel AI SDK (Free), Portkey (Free plan). Free plans usually cap users, records or transactions, so check the limits against your monthly volume.
What is the cheapest alternative to Retell AI?+
Among alternatives that publish a price, Obviously AI starts lowest at ₹6,000/mo. Semantic Kernel also has a free plan. Prices are read from each vendor's website and exclude GST.
Is there an Indian alternative to Retell AI?+
Yes. 2 alternatives are built in India, including E2E TIR (Pay as you go), Portkey (Free plan). Indian products usually handle GST, TDS and UPI natively and bill in rupees.
Retell AI vs OpenAI API: which is better?+
OpenAI API is the closest match to Retell AI in our catalogue. Compare them side by side before you book a demo.
How were these Retell AI alternatives chosen?+
Every product listed sits in ai agent & llm development platforms or a category Retell AI also covers, and Retell's own products are excluded. Prices, free plans and platforms come from each vendor's official website. App Advisor does not sell any of this software.
Free shortlist
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Related alternatives
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