Fonio AI vs Vapi — Pricing, Plans, and Verified Costs (2026)
Fonio AI starts at $106/mo. Vapi starts at Free. Vapi is $106/mo cheaper on the entry tier than Fonio AI.
How pricing works
These two tools don't price the same way, so the headline numbers below aren't directly comparable until you plug in your own volume.
- Fonio AI (Hybrid) — Fonio AI is hybrid: a fixed subscription from $106/mo plus metered usage on top (Solo). Your real bill moves with volume, not seat count.
- Vapi (Per Usage) — Vapi bills purely on usage — PAYG. There is no fixed per-seat fee, so the monthly cost depends entirely on how much you consume.
Per-minute, per-credit and per-token rates exclude any downstream model, speech or telephony costs unless the vendor states otherwise.
German AI phone agent platform priced in EUR. Solo €99 (1,000 min, 1 phone number), Team €299 (3,000 min, 5 concurrent calls), Business custom (100+ calls/day). Prepaid alternative from €0.20/min with €300 minimum top-up. Solo includes €0.15/additional minute. 20+ voices, 25+ languages, unlimited AI assistants across all tiers.
Voice AI agent platform for developers building conversational voice apps. Base orchestration at $0.05/minute PAYG (STT/LLM/TTS/telephony billed separately, ~$0.07–0.25/min all-in). 10 concurrent lines included; extra lines $10/mo each. HIPAA add-on $2K/mo, ZDR $1K/mo. Enterprise starts $40K–70K/year. Backed by Bessemer and Y Combinator. Direct competitor to Retell AI and Bland AI.
All plans compared
| Tier role | Plan | Fonio AI monthly | Fonio AI annual | Vapi monthly | Vapi annual |
|---|---|---|---|---|---|
| Free / starter | Business / PAYG | Free | Free | Free | Free |
| Entry paid | Solo / — | $106 | $106 | — | — |
| Teams | Team / — | $320 | $320 | — | — |
| Enterprise | — / Enterprise | — | — | $3333 | $3333 |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Fonio AI is worth it if… European SMBs and mid-market teams that want a German-founded, GDPR-native AI phone agent without navigating US-first platforms like Vapi or Retell. Solo (€99) fits 1–20 calls/day; Team (€299) opens 5 concurrent lines.
Vapi is worth it if… developers who want maximum control over the voice stack — swap any STT, LLM, TTS, or telephony provider without vendor lock-in. 05/min is the lowest orchestration fee in the category, but the real cost is what you stack on top.
Bottom line: Choose based on how you want to pay — Fonio AI is hybrid, Vapi is per usage.
Choose Fonio AI over Vapi if…
Choose Fonio AI if…
- You're fine with a base subscription plus metered usage on top (from $106/mo).
- You match the profile Fonio AI is built for: European SMBs and mid-market teams that want a German-founded, GDPR-native AI phone agent without navigating US-first platforms like Vapi or Retell.
- You need a general-purpose voice agents & speech/audio option rather than a vertical-specific one.
Choose Vapi if…
- You want a fully open voice stack — swap STT, LLM, TTS, or telephony providers freely.
- You're a developer prioritising maximum control over opinionated defaults.
- You need HIPAA or zero-data-retention compliance without switching platforms.
At a glance
| Fonio AI | Vapi | |
|---|---|---|
| Free plan | No | Yes |
| Entry price | $106/mo | Free |
| Enterprise available | No | Yes |
| Pricing model | Hybrid | Per Usage |
| Last verified | September 10, 2026 | September 10, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified September 10, 2026. Tracked daily.