asyncai
- Company typePrivate
- Founded-
- Headquarters—
- Headcount—
- GTM typeB2B
- OfferingSoftware
asyncai firmographics
Firmographics- Name
- asyncai
- Website
- https://async.ai
- Company type
- Private
- Operating status
- Operating
- Ownership category
- akta.pro rank
asyncai industry classification
Industry- Product category
- Voice AI APIs
- NAICS
- Software Publishers (513210)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Text-to-Speech (TTS) & Voice Synthesis (HDAAAFAB)
- akta.pro secondary industry
- Automatic Speech Recognition (ASR) (HDAAAFAA)
Keywords
asyncai business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales
Revenue model
- Text-to-Speech API Usage: Pay-per-use model based on generated audio duration. Prepaid wallet system with automatic top-up option. Users pay only for audio generated, with no subscription commitments required.
- Enterprise Contracts: Custom pricing for enterprise teams with volume discounts, dedicated support, and custom rate limits. SLA guarantees and early access to new models included.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Pay-as-you-go | Developer Plan - Pay-per-hour with free tier |
| Usage-based | Multi-year contract | Enterprise Plan - Custom pricing for high-volume teams |
| Usage-based | Pay-as-you-go | Comparison pricing vs competitors |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
asyncai product offering
Product offeringCore offering
Async provides a developer API platform for Text-to-Speech (TTS) and Speech-to-Text (STT) with human-like voice synthesis and voice cloning capabilities. The platform delivers sub-200ms latency streaming TTS through multiple model tiers (Async Pro v1.0 for quality, Async Flash v1.5 for speed) with usage-based pricing starting at $0.50 per hour of generated audio.
Product overview
Async provides a unified developer platform for human-like voice AI. The core offering is the Async Voice API, which combines Text-to-Speech (TTS) and Speech-to-Text (STT) capabilities through multiple API endpoints. TTS is powered by two model tiers: Async Pro v1.0 (best quality, English) and Async Flash v1.5 (low-latency, 6 languages), with Async Flash v1.0 available for legacy multilingual support. Voice cloning enables creation of custom voices from 3-second samples. Advanced features include custom phonemes (IPA), digit pronunciation control, and silent pause insertion. The platform integrates natively with Pipecat, LiveKit, and Twilio for voice agent development. All services use a prepaid wallet billing model with pricing from $0.50/hour.
Differentiator
Problem solved
Functional benefit
Brands
- Async Voice API: Human-like text-to-speech and speech-to-text API with sub-200ms latency
Products and services
- Async Voice API A unified developer platform for human-like voice AI combining Text-to-Speech (TTS) and Speech-to-Text (STT) capabilities through multiple API endpoints (HTTP POST, WebSocket streaming, batch operations). Designed for developers and enterprise teams building real-time voice AI applications including voice assistants, chatbots, phone agents, and conversational AI experiences.
- Async Pro v1.0 High-quality TTS model optimized for the most natural-sounding speech output. Best suited for content production, audiobooks, and highest audio quality applications. Features English language support with built-in text normalization handling for dates, currencies, numbers, and abbreviations. Priced at $1.00/hour of generated audio.
- Async Flash v1.5 Latency-optimized streaming TTS model with strong built-in text normalization handling dates, currencies, numbers, and abbreviations. Designed for real-time streaming, voice agents, and low-latency applications. Supports 6 languages (English, Spanish, French, German, Italian, Portuguese). Achieves median TTFB of 166ms. Priced at $0.50/hour of generated audio.
- async_asr_v1.0 Multilingual speech-to-text model supporting 15+ languages. Supports file upload (WAV, MP3, FLAC, WebM, OGG, M4A) and real-time WebSocket streaming. Billed per processed audio duration.
Quantifiable outcome
- 34% faster TTFB than ElevenLabs (166ms vs 253ms median)
- +4 more outcomes
Companies that use asyncai
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
asyncai technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability6 records
Feature11 records
asyncai partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and supporting.
- PipecatcoreOfficial integration with Pipecat open-source framework for voice and multimodal AI agents. Provides low-latency streaming TTS via AsyncAITTSService (WebSocket) and AsyncAIHttpTTSService (HTTP). Recommended for interactive voice experiences.
- LiveKitcoreOfficial integration via livekit-plugins-asyncai plugin for LiveKit Agents. Enables real-time streaming TTS with low TTFB for voice agents. Streaming-only behavior optimized for conversational AI systems.
- TwiliocoreIntegration for building voice experiences with calls, IVR, and contact centers. Guide shows how to connect Async TTS WebSocket to Twilio media streams via ngrok.
- n8nsupportingWorkflow automation integration for voice-powered applications. Enables voice AI capabilities within n8n automation workflows.
- Picsart FlowsupportingIntegration with Picsart Flow no-code AI workflow tool for creative applications. Enables voice synthesis within AI creative workflows.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
asyncai competitors and assessment
Company assessmentDirect peers
- ElevenLabs: ElevenLabs is the leading commercial TTS and voice cloning platform, offering a developer API and consumer products. It is Async's primary benchmarked competitor (latency, quality, and pricing) and the most direct peer in TTS-as-a-service.
- Cartesia: Cartesia offers real-time, low-latency TTS models for voice agents and is explicitly benchmarked against Async. Direct head-to-head competitor on streaming TTS latency for conversational AI workloads.
- PlayHT: PlayHT provides a TTS API with voice cloning and a marketplace of voices, targeting developers and content creators. Competes directly on developer-first TTS with multilingual support and enterprise features.
- Murf AI: Murf AI offers studio-quality AI voices for content creation, e-learning, and enterprise voiceover, with voice cloning and an API. Comparable developer-and-creator focus on TTS with multilingual voice library.
- Resemble AI: Resemble AI provides real-time voice cloning and TTS APIs for enterprise and developers, with focus on custom voices and emotion control. Comparable API-first TTS offering with cloning as a core capability.
- WellSaid Labs: WellSaid Labs offers studio-quality AI voice generation for enterprise content and training materials, with API access. Comparable enterprise-focused TTS with subscription and usage-based pricing tiers.
- LMNT: LMNT provides fast, high-quality open-weights-friendly TTS with a developer API and voice cloning. Competes on low-latency streaming TTS and developer ergonomics, similar to Async's positioning.
Broad incumbents
- Google Cloud Text-to-Speech: Google Cloud TTS is a hyperscaler offering with broad multilingual support and deep enterprise integration. Acts as a default incumbent for enterprise procurement and a commoditizing force on TTS pricing.
- Amazon Polly: Amazon Polly provides TTS as part of the AWS ecosystem, often bundled with other AWS services. A broad incumbent that competes on price and integrated cloud workflows rather than on dedicated TTS quality.
- Microsoft Azure Speech: Microsoft Azure AI Speech offers TTS and STT as part of Azure Cognitive Services, with neural voices and enterprise compliance. Comparable incumbent for enterprise customers seeking integrated cloud + compliance.
Market position
Weaknesses1 record
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
asyncai compliance and trust
Trust signalCompliance2 records
asyncai financial estimates
Financial estimateRevenue estimate
Valuation estimate
asyncai leadership team
Management profileNumber of profiles
asyncai funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
asyncai M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about asyncai
What does asyncai do?
Async provides a developer API platform for Text-to-Speech (TTS) and Speech-to-Text (STT) with human-like voice synthesis and voice cloning capabilities. The platform delivers sub-200ms latency streaming TTS through multiple model tiers (Async Pro v1.0 for quality, Async Flash v1.5 for speed) with usage-based pricing starting at $0.50 per hour of generated audio.
Is asyncai a public or private company?
asyncai is a private company. It is classified as unknown and is currently operating.
When was asyncai founded?
asyncai was founded in -1.
How does asyncai make money?
Two revenue lines are on record. Text-to-Speech API Usage is the primary driver. The others are enterprise Contracts.
Who are asyncai's main competitors?
Direct peers on record are ElevenLabs, Cartesia, PlayHT, Murf AI, Resemble AI, WellSaid Labs and LMNT. Broad incumbents are Google Cloud Text-to-Speech, Amazon Polly and Microsoft Azure Speech.
Does asyncai have an API?
Yes. Async Voice API is a developer platform offering Text-to-Speech and Speech-to-Text capabilities. The API provides multiple endpoints including HTTP POST, WebSocket streaming, and batch operations. Authentication uses API keys (sk_...). Rate limits default to 20 requests/minute with concurrency of 1. The API supports multiple TTS models (async_pro_v1.0, async_flash_v1.5, async_flash_v1.0) and ASR model (async_asr_v1.0). Output formats include raw PCM, MP3, with configurable sample rates up to 44100Hz. Developer documentation is at docs.async.com.
What industry is asyncai in?
asyncai's product category is Voice AI APIs. Its primary akta.pro industry code is HDAAAFAB, Text-to-Speech (TTS) & Voice Synthesis, with a secondary code of HDAAAFAA, Automatic Speech Recognition (ASR). Its NAICS code is 513210 and its SIC code is 7372.