Voice AI Cloud

Voice AI infrastructure with unmatched price-performance

Deploy anywhere, scale instantly, and route intelligently—without giving up performance or control.

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How AssemblyAI compares

AssemblyAI API Recommended

Other APIs

Self-hosted Voice AI

Time to value

Ship in days with a simple API and SDKs

Long sales cycles and contract negotiations

Fast prototype, but weeks to harden for production

Engineering effort

No model serving, GPUs, or infrastructure to manage

Complex SDKs and inconsistent docs

You build the pipelines, serving, batching, and scaling

Ops and maintenance

Upgrades, scaling, and reliability handled for you

Patchy reliability and slow product updates

On-call burden, CUDA drivers, and patching

Scale and burst

Elastic capacity for spikes and new launches

Tight concurrency limits and rate throttling

Capacity planning, idle GPUs, or dropped work

Real-time streaming

Streaming infrastructure tested at production scale

Inconsistent streaming support

Endpointing and stability are hard to get right

Accuracy and features

Strong out-of-the-box quality plus a deep feature set

Feature gaps and accuracy that varies by use case

Baseline quality — tuning and evaluation required

Security and compliance

Enterprise security posture and compliance options

Varying compliance levels and data retention concerns

You own all the risk and audit

Cost / TCO

Lowest TCO — pay-as-you-go with no GPU or ops headcount

Premium pricing and minimum commitments

Higher TCO — GPU capex, infrastructure, and on-call team

Inference 600M+

inference calls per month

API 840M+

API calls per month

Audio 40TB

of audio processed daily

Platform

Build, ship, and scale voice apps on complete Voice AI infrastructure

Quality and reliability your applications can lean on, at economics that scale with your business. Purpose-built for the performance production workloads demand.

Pricing

Predictable, usage-based pricing

Pay only for what you use, billed per second
No GPU costs, no DevOps overhead, no over-provisioning
Reallocate $750K+ a year from infrastructure to product work
No minimums, no long-term contracts

Infrastructure

Zero infrastructure to manage

Scale instantly from zero to thousands of concurrent streams
Skip GPU provisioning, capacity planning, and hardware tuning
Handle unpredictable voice traffic automatically
Get infrastructure updates and optimizations with no effort on your end

Reliability

Reliability and security, proven at scale

99.9% uptime SLA with multi-region redundancy and automatic failover
Millions of hours of audio processed every day for production apps
SOC 2 and GDPR support — no extra work on your side
Built for the security and performance enterprise workloads require

Developer experience

One API to ship faster

Build on a complete Voice AI platform instead of stitching one together
Access our Universal models and managed inference through a single API
Free up your infrastructure team to build features that drive revenue
One vendor, one support team for your entire Voice AI stack

Quality that matters. Infrastructure that scales.

Why developers choose AssemblyAI to build their Voice AI products.

Quality customers feel

Customers tell us their end users notice the difference the moment they switch to AssemblyAI — higher NPS, fewer support tickets, and better CSAT scores.

Ship faster, stay ahead

Teams building on AssemblyAI report faster ship cycles and quicker time to value than with any other speech-to-text provider.

Continuous innovation

We ship product improvements every week and set the bar for speech-to-text accuracy. AssemblyAI evolves ahead of the industry so you can too.

Economics that scale with you

Simple, transparent pricing with no upfront commits and unlimited concurrency. Nothing throttles you or gets in the way of shipping.

Unlock the value of voice data

Build what's next on the platform behind thousands of the industry's best Voice AI apps.

Try our API for free