Vapi alternatives that are not another voice API
Pick Guzli if ops will run the storefront widget and the inbound line without assembling STT, LLM, TTS, and telephony. Stay on Vapi if you are the engineer wiring bring-your-own keys — or if the thing you sell is a voice API. Guzli will not out-API Vapi. Retell is the other latency-sensitive voice API; Bland is Pathways on owned infrastructure. Hobby is $49 chat only; voice starts Standard $149 + 16¢/min. Vapi’s own cards: https://vapi.ai/pricing
Quick verdict: Stay on Vapi when developers will own prompts, provider keys, and the stack you resell. Choose Guzli when website live chat and the phone must share one knowledge base and one published bill — keep Zendesk or HubSpot as the desk. Choose Retell if you still want a latency-sensitive voice API without assembling every layer. Confirm Vapi pricing at https://vapi.ai/pricing
From $49/mo, flat — cancel anytime.
When assembling a voice API is the wrong buy
Leave Vapi if ops will run the storefront
- No engineer on the project to own prompts, tools, and keys
- Shoppers type on the widget, then call, and the two answers disagree
- You want one published bill instead of Vapi plus speech, language, and telephony vendors
- You will keep Zendesk or HubSpot and only wanted one front line on chat and inbound
What Vapi still wins for builders
- + Deepest component-level control with bring-your-own keys
- + Large developer ecosystem and fast prototyping when you already have provider accounts
- + Custom telephony: Twilio, SIP, and the carrier you already have
- + The right meeting if you are building a voice feature you resell
Where bring-your-own keys hurt a desk
- - Not a no-code website chatbot sharing a brain with the phone
- - Hosting plus STT, LLM, TTS, and telephony can land as several invoices — confirm on vapi.ai/pricing
- - API-first: ops cannot edit answers without an engineer
- - Does not replace Zendesk or HubSpot as the desk
What buyers complain about
Sourced Vapi complaints and vendor docs, with links. These are not Guzli customers. Pair each with why someone should still stay on Vapi.
“The advertised $0.05 per minute is orchestration / hosting only. Speech-to-text, the LLM, TTS, and telephony are separate meters (or $0 if you bring your own keys).”
Vapi pricing page · August 2026 · Source
“Switching to o1 preview caused the latency to spike dramatically to 8000 ms (8 seconds), making it far too slow for a natural conversation.”
Softailed, Vapi Review · 2026 · Source
“Default Vapi turn-detection (On No Punctuation Seconds: 1.5s) can add 1.5+ seconds to your response time. Telephony network overhead is 600ms+ vs ~100ms on web.”
AssemblyAI engineering blog (Vapi partner) · 2026 · Source
Shortlist beside Vapi, not another assembler
Retell is the other latency-sensitive voice API. Bland is Pathways on owned infrastructure. Guzli is no-code website chat plus the inbound line on one published bill.
Guzli Recommended
No-code front line: website live chat, inbound phone, and outbound on one knowledge base. Train once on the site, help articles, files, and solved tickets from Zendesk, HubSpot, or Salesforce. Named tools only — Shopify, Stripe, Calendly, Slack, WhatsApp. Hobby is $49 chat only. Voice starts Standard $149 + 16¢/min. Not a Vapi replacement and not an App Store listing.
Vapi
Keep it. API-first assembler with bring-your-own STT, LLM, TTS, and telephony keys. The default when you are building a voice product you sell. See https://vapi.ai/pricing
Retell AI
Latency-sensitive voice API with SDKs, IVR, DTMF, and live take-over. Chat is a separate Chat Agent plus widget. Decision page: /alternatives/retell-ai/. Cards: https://www.retellai.com/pricing
Bland.ai
Owned voice infrastructure and Pathways graphs. Stay there for VPC, a BAA, or high-volume outbound. Decision page: /alternatives/bland-ai/. Cards: https://www.bland.ai/pricing
Assembler rows versus a no-code storefront agent
| Feature | Guzli | Vapi |
|---|---|---|
| Bring-your-own STT / LLM / TTS keys | Partial | |
| API-first assembler you wire yourself | ||
| Hosting fee plus stacked provider invoices | ||
| Custom Twilio, SIP, and the carrier you already have | Partial | |
| Voice product you can resell | ||
| Same agent on the storefront widget and inbound line |
Vapi hosting cents versus plan plus talk
Confirm Vapi at vapi.ai/pricing. Guzli Hobby is $49 chat-only.
Guzli pricing
From $49/mo
- Hobby is $49 chat-only — no per-seat fees
- Voice starts Standard at $149 + 16¢/min; Pro is $499 + 14¢/min
- Named tools: Shopify, Stripe, Calendly, Slack, WhatsApp, and the desks you keep
- Not a Shopify App Store app
Vapi pricing model
Confirm current Vapi pricing with Vapi at https://vapi.ai/pricing. Hosting plus bring-your-own or pass-through STT, LLM, TTS, and telephony meters. This page does not invent Vapi list prices.
What to model before committing
- • Your expected monthly conversations and calls
- • Seats or usage meters that grow with your team
- • Add-ons needed to match an all-in-one platform
Model summary based on published pricing at the time of writing — check Vapi’s site for current numbers.
Move the inbound number off a Vapi assistant
- 1Keep Vapi if you still sell a voice API or still need BYOK, SIP, or your own Twilio account
- 2Connect Guzli to the website, help articles, files, and solved tickets from Zendesk, HubSpot, or Salesforce
- 3Paste the system prompt and map actions to Shopify, Stripe, Calendly, or a custom API — do not lift a squad graph node for node
- 4Put Guzli on the site for chat and, on Standard or Pro, on the inbound number you want on the same brain; auto-create tickets into the desk you keep
- 5Run a short parallel pilot, then switch front-line traffic once answers and handoffs match
Explore Other Alternatives
Run the widget and the inbound line without an assembler
Hobby is $49 chat-only. Voice starts Standard at $149 + 16¢/min.