Speko vs Vapi
Speko and Vapi both help teams ship voice agents. Vapi is a developer platform for building voice agents. Speko is a voice AI platform that includes speech-to-text, the language model, text-to-speech, telephony and routing through one API for $0.09 per connected minute.
Vapi lets developers configure the provider stack. Speko includes STT, LLM, TTS, telephony and routing behind one API and one connected-minute rate.
Speko vs Vapi, side by side
| Speko | Vapi | |
|---|---|---|
| What it is | Voice AI platform for developers and in-house enterprise voice teams | a developer platform for building voice agents |
| Voice stack | STT, LLM, TTS, telephony and routing through one API | You configure the STT, LLM, TTS and telephony choices Vapi integrates |
| Provider setup | Managed behind one API | Model usage is pass-through or BYOK; telephony is separate |
| Pricing | $0.09/min, all-in (STT, LLM, TTS, telephony and routing) | $0.05/min for Vapi hosting and orchestration. STT, LLM, and TTS are pass-through charges, or connect your own provider keys and pay those providers directly. Billed separately by the connected telephony provider. 10 concurrent calls included, then $10/additional concurrent call/month. |
| Billing | One invoice | Hosting and orchestration plus provider and telephony charges |
| Hosting | Fully managed | Fully managed |
| Public research | Publishes public STT and TTS provider benchmarks | See the vendor documentation and evaluation tools |
| Designed for | Developers and in-house voice teams that want the full stack behind one API | Developers who want configurable provider choices |
What Vapi offers
- Developer-focused API
- Configurable provider stack
- 10 concurrent calls included
Cost and setup details
- STT, LLM and TTS are charged separately from the $0.05 hosting and orchestration fee
- With BYOK, the provider bills the developer directly
- Additional concurrency is $10 per call per month
Vapi pricing and product details checked against Vapi pricing , Vapi pricing FAQ , verified 2026-07-23.
One API for the full voice stack
Speko includes STT, LLM, TTS, telephony and routing in one connected-minute rate. Public benchmarks help teams evaluate provider performance while they build.
FAQ
Is Speko a Vapi alternative?
Yes. Speko and Vapi are options for building voice agents, with different product scope and billing structures. Vapi lets developers configure the provider stack. Speko includes STT, LLM, TTS, telephony and routing behind one API and one connected-minute rate.
How much does Vapi cost compared to Speko?
Speko is $0.09 per connected minute, all-in (STT, LLM, TTS, telephony and routing), with the first 100 minutes free. Vapi pricing: $0.05/min covers hosting and orchestration. STT, LLM, TTS, and telephony are separate. Billing model: Hosting and orchestration plus provider and telephony charges. Sources: Vapi pricing, Vapi pricing FAQ, verified 2026-07-23.
What is included in Speko pricing?
Speko includes STT, LLM, TTS, telephony and routing for $0.09 per connected minute. The first 100 minutes are free, and phone numbers are $2 each per month.
Where can I compare voice AI pricing line by line?
See speko.ai/voice-ai-alternatives-pricing-comparison for a dated comparison of platform, model, telephony, subscription and other charges with first-party source links.