SpeechifyAI vs Vapi

Vapi is a flexible, API-driven way to build voice agents — but its $0.05/min is an orchestration fee; you add STT, LLM, TTS, and telephony on top (~$0.10–0.20/min all-in). SpeechifyAI is one all-in rate from $0.07/min with LLM included, plus a workflow editor, tool calling, evals, and governance, and 60 free minutes a month.

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SpeechifyAI

Vapi

SpeechifyAI at a glance

$0.07/min

all-in — LLM included

free minutes every month

Tool calling

+ webhooks

SOC 2

Type II certified

SpeechifyAI vs Vapi, capability by capability
Capability	SpeechifyAI	Vapi
Pricing	From $0.07/min all-in — LLM included · 60 free min/mo	$0.05/min platform + STT/LLM/TTS passthrough (~$0.10–0.20 all-in)
What's included	LLM + STT + TTS + orchestration in one rate	Orchestration only; bring and pay for the rest
Free tier	60 min/mo, commercial use	Build plan: 60+ minutes included, then usage-based
Workflow design	Visual + code, deterministic branching	Code-first with function calling
Integrations	Tool calling + webhooks	Bring-your-own via functions
Evals / tests	Simulated callers, regression suites	Manual or bring-your-own
Enterprise controls	SSO, RBAC, encryption	HIPAA $2,000/mo, zero-retention $1,000/mo add-ons

What will an agent cost at your volume?

SpeechifyAI is one per-minute rate with the LLM included. Most competitors quote a platform fee, then bill the LLM and telephony on top. Drag your monthly minutes and switch the competitor to see the difference. Rates are from each vendor's public pricing.

Your monthly volume

6,000 minutes / mo

≈ 1,200 calls at ~5 min each

500 min50,000 min

SpeechifyAI · all-in one bill

$420 /mo

$0.07/min · everything included

LLM
Speech-to-text
Text-to-speech
Telephony orchestration

One line item. No passthrough, no token math.

ElevenLabs · platform fee + extras

$480 /mo +

$0.08/min platform fee

Rates vary by usage, region, and contract.

Compare against

SpeechifyAI at the $0.07/min Pro rate, LLM included; Scale drops to $0.068 and Enterprise to $0.06. Competitor "+" items are billed separately on top of the platform fee, so a competitor's true all-in is higher than its headline rate.

Pre-computed scenarios

Monthly volume	SpeechifyAI, all-in ($0.07/min)	Vapi platform fee ($0.05/min)	You save
1,000 min · ≈200 calls	$70/mo	from $50/mo	$-20/mo +
6,000 min · ≈1,200 calls	$420/mo	from $300/mo	$-120/mo +
20,000 min · ≈4,000 calls	$1,400/mo	from $1,000/mo	$-400/mo +

The "+" marks the LLM and telephony Vapi bills separately on top of the platform fee — so the true saving is larger than the platform-fee gap shown.

SpeechifyAI vs Vapi, in plain English

The whole stack runs on day one

Vapi gives you an API to glue voice agents together at $0.05 a minute for hosting plus whatever your model provider charges on top, with $10 per phone line per month. The Build plan ships without SSO, RBAC, SOC 2 reports, or an SLA, and compliance is sold separately at $2,000 a month for HIPAA and $1,000 a month for zero data retention. SpeechifyAI rolls all of that into a single per-minute rate from $0.07 on Pro that covers the LLM, the speech stack, the workflow runtime, tool calling, webhooks, and SOC 2 Type II compliance without the per-feature procurement add-ons.

Tests built for voice, not borrowed from web apps

A voice agent breaks in ways a unit test cannot catch: callers talk over the agent, wait too long, or ask the same thing two different ways inside two seconds. SpeechifyAI ships simulated callers as a first-class feature so a regression hits the test runner instead of a real customer, and the visual workflow editor lets a non-engineer trace exactly which branch each recorded call took. Vapi leaves that whole layer for you to build; doing it well is a quarter of engineering work.

The verdict

SpeechifyAI gives engineering teams a production voice-agent stack pre-wired in the platform fee, on one rate from $0.07 a minute, with SOC 2 Type II, SSO, RBAC, telephony, and integrations built in rather than bolted on as separate compliance line items.

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More comparisons

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