Tool review · est. 2020
Vapi
The developer voice AI platform with maximum control
Visit Vapi →vapi.ai
Tier across use cases
Strengths
- Cleanest API; maximum configurability
- Swap any LLM/TTS (OpenAI, Claude, ElevenLabs)
- Low-latency real-time pipeline
- Great for developers building custom agents
Trade-offs
- Overwhelming for non-technical teams
- Compliance chain across multiple providers
- Handoff logic must be built yourself
Key features
- Developer voice API
- Any LLM/TTS configuration
- Low-latency pipeline
- Telephony abstraction
- Custom logic
Pricing
Usage-based (~0.05+ USD/dk + bilesen ucretleri). Voice AI'in Stripe'i — temiz API, herhangi LLM/TTS (OpenAI/Claude/ElevenLabs), sub-500ms hedef. Developer-odakli. Fiyatlar yaklasik.
Pay-as-you-go
Custom
- Clean API
- Any LLM/TTS
- Telephony abstraction
Enterprise
Custom
- Higher limits
- Support
- Compliance
What reviewers say
Best for
Developers building custom voice agents with full control
Frequently asked
- Who is Vapi best for?
- Developers building custom voice agents with full control
- How is Vapi ranked on TIERSAI?
- Vapi earns B tier (7.65/10) for AI Voice Agents (Phone). Every score uses the same transparent 0-to-10 scale across five axes.
- How much does Vapi cost?
- Usage-based (~0.05+ USD/dk + bilesen ucretleri). Voice AI'in Stripe'i — temiz API, herhangi LLM/TTS (OpenAI/Claude/ElevenLabs), sub-500ms hedef. Developer-odakli. Fiyatlar yaklasik.
Ready to try Vapi?
Start with the free or entry plan and test it on your own work — pricing and limits change often, so check the current options on their site.
Try Vapi →