Sign up for 3 to 5 providers
A single experiment means funding multiple balances before you know what stack wins.
$250 to $500 upfront
One API, one balance, one stack
One API for Every Voice Agent
Zero Markup. Zero BS.
Build voice agents with Deepgram, ElevenLabs, OpenAI, Google, and more without juggling multiple provider accounts, hidden fees, or orchestration sprawl.
DeepgramElevenLabsOpenAIGoogleAnthropic
The Problem
Building Voice Agents Today Is A Nightmare
Manage separate billing
Different invoices, different credits, different dashboards for one product feature.
3+ billing accounts
Learn different APIs
Every provider has different auth, websockets, retries, and stream formats.
100+ lines of glue code
Waste budget testing
Trying combinations is expensive when every provider needs separate pre-funded credits.
Weeks of integration
The old way: multiple accounts, multiple APIs, and expensive trial-and-error.
Skip the fragmentationThe Solution
With OVoice, It Is Simple
OVoice unifies the full voice pipeline so developers can move from prototype to production without provider lock-in.
One Account
Deposit once and access all supported STT, LLM, and TTS providers.
One API
Install @ovoice/sdk and compose your full voice stack in one object.
Zero Markup Usage
Usage is billed at provider retail rates, without hidden surcharges.
Switch Instantly
Change providers in one line, no full rewrite of your voice pipeline.
Pricing
Transparent Pricing. No Markup.
You pay provider retail rates through one unified balance. No hidden usage fees.
Speech-to-Text
Per minute
- Deepgram Nova-2$0.0043 / min
- OpenAI Whisper$0.006 / min
- AssemblyAI$0.00065 / sec
Text-to-Speech
Per 1K chars
- ElevenLabs$0.18 / 1K chars
- OpenAI TTS-1$0.015 / 1K chars
- Cartesia Sonic$0.045 / 1K chars
Large Language Models
Input / output
- Gemini 2.5 Flash$0.075 / $0.30
- GPT-4o$2.50 / $10.00
- Claude Sonnet 4$3.00 / $15.00
Optional Pro plan: $29/mo
Includes advanced analytics, A/B testing tools, and priority support.
Sample public rates shown as of February 11, 2026. Final usage follows live provider retail pricing.
Best Model Combos
Current Best-In-Class Stacks
Copy a preset and tune from there. Updated monthly with real usage data.
Speed
Best for Low Latency
Optimized for real-time response and conversational snappiness.
- STT
- deepgram.nova-2
- LLM
- gemini-2.5-flash
- TTS
- cartesia.sonic
Latency: ~450msCost: ~$0.02/min
Cost
Best for Lowest Cost
Built for high volume usage where budget efficiency is the top priority.
- STT
- assemblyai.universal
- LLM
- gemini-2.5-flash
- TTS
- openai.tts-1
Latency: ~600msCost: ~$0.008/min
Quality
Best for Voice Quality
Higher fidelity stack for premium voice experiences and clarity.
- STT
- deepgram.nova-2
- LLM
- gpt-4o
- TTS
- elevenlabs.turbo
Latency: ~800msCost: ~$0.05/min
How It Works
Get Started in Minutes
Step 1
Add $10
Create an account and top up one shared balance.
Step 2
Install SDK
npm install @ovoice/sdk and set your API key.
Step 3
Start Building
Ship voice agents and swap providers without rewrites.
Trust
Backed by Transparency
Production Infrastructure
Managed routing, retries, and model orchestration under one platform.
Built for production workloads from day one.
Real-Time Pricing
See provider rates in one place and optimize for cost or latency quickly.
Provider price in, provider price out.
Built for Developers
Transparent billing, composable API, and fast model switching.
1 API1 invoice0 lock-in
Waitlist
Join 500+ Developers Building on OVoice
Get early beta access, launch support, and a lifetime 20% discount on the Pro tools plan.
- Early access to beta
- Lifetime 20% Pro plan discount
- Direct feedback channel with the founders
FAQ
Frequently Asked Questions
How does OVoice make money if there is no usage markup?
OVoice keeps negotiated provider volume discounts. Your usage is billed at provider retail rates.
Is this cheaper than integrating providers directly?
For most teams, yes. You avoid pre-funding multiple balances, reduce integration overhead, and still pay retail usage rates.
Do I need provider accounts like Deepgram or ElevenLabs?
No. You use one OVoice account and one balance, then route usage across supported providers from the same API.
When is launch?
Waitlist users receive rolling beta invitations throughout 2026.