SIMBA is built by Speechify — the world's largest consumer voice AI company
Speechify has spent nearly a decade training voice models used by 50M+ people across 270+ countries. SIMBA is what happens when that infrastructure, research, and experience gets aimed at businesses.
50M+
Speechify users worldwide
270+
Countries served
70+
Languages supported
~10 years
Voice AI research
One mission
Voice makes the world more productive
Chapter 1 — Consumers
Making information accessible through voice
Speechify started with a simple idea: people absorb information faster by listening than by reading. Students, professionals, and people with dyslexia could reclaim hours every day if any text could be spoken to them naturally. So Speechify built the voice models to do it — and 50 million people adopted it.
Chapter 2 — Businesses
Making every business conversation scalable through voice
Businesses have the same bottleneck — millions of conversations that need to happen, and not enough people to have them. Support calls go unanswered. Leads wait hours for a callback. Appointments go unbooked. SIMBA applies Speechify's voice technology to this problem: every call, handled naturally, at scale, 24/7.
The mission didn't change. The customer did. Speechify made voice work for individuals. SIMBA makes it work for the businesses that serve them.
The structural advantage
Why SIMBA can charge 60% less than ElevenLabs
It's not a pricing strategy. It's a structural cost advantage that other platforms can't match.
Most voice agent platforms are resellers
Retell, Vapi, Bland, and most others don't own their voice models. They pay ElevenLabs, Deepgram, or another TTS provider per character or per minute — then pass that cost to you with a margin on top. Their pricing is structurally constrained by their suppliers.
ElevenLabs charges $0.10/min for conversational AI. When they raise prices — or start passing through LLM costs they currently absorb — every platform built on top of them raises prices too.
SIMBA owns the model layer
Speechify didn't license voice technology — it built it. Nearly a decade of research, billions of real-world listens as training signal, and proprietary neural TTS models running on owned infrastructure. SIMBA runs on that stack directly.
There is no TTS middleman. No per-character fee flowing to a third party. When you pay SIMBA $0.04/min on Scale, that covers compute, LLM inference, and voice rendering — not a reseller margin on top of ElevenLabs.
SIMBA Scale
$0.04/min
LLM included
SIMBA Pro
$0.06/min
LLM included
ElevenLabs
$0.10/min
LLM costs extra
What Speechify's scale means for your agents
We own the voice model layer
Most voice agent companies are resellers. They pay ElevenLabs or another TTS provider per minute, then pass that cost to you. Speechify has spent nearly a decade training its own proprietary neural TTS models — the same models powering billions of consumer listens. SIMBA runs on that infrastructure directly. No middleman. No passthrough.
Trained on billions of real listens
Speechify's voice models have been refined by actual usage at scale — 50M+ users, across accents, languages, and listening contexts that no synthetic dataset can replicate. That's why SIMBA agents sound natural where competitors sound robotic, and why our multilingual quality across multiple languages is unmatched.
Production-proven infrastructure
Speechify runs one of the highest-throughput real-time audio systems in the consumer world — millions of concurrent streams, sub-second rendering, global edge delivery. SIMBA inherits that infrastructure. When you deploy a SIMBA agent, it runs on systems that have been handling production voice load for years, not months.
A decade of voice research, not months
ElevenLabs was founded in 2022. Most voice agent startups are even newer. Speechify has been doing this since 2017 — fine-tuning voice quality, understanding how people perceive naturalness, and building the engineering systems to deliver it reliably at scale. That head start compounds.
The road to SIMBA
Speechify founded — starts converting text to speech for students and professionals
Reaches 1M users. Voice model research accelerates.
Launches proprietary neural TTS models, surpassing off-the-shelf quality
20M+ users. Speechify voices used for billions of listens globally
50M+ users across 270+ countries. #1 consumer voice AI app.
SIMBA Voice Agents launches — Speechify's voice technology, built for businesses
Learn more
Pricing
See how SIMBA's voice model ownership translates to the lowest per-minute rates in the market.
SIMBA vs ElevenLabs
Full pricing, concurrency, and feature comparison between SIMBA and ElevenLabs Conversational AI.
All comparisons
See how SIMBA compares to Retell, Vapi, Bland, Synthflow, PolyAI, and Assort Health.
Start with the team that built consumer voice AI at scale
10,000 free minutes per month. No credit card required.