Fair, flexible pricing.
Built to scale with you.
Pricing calculator
Stop overpaying for speech AI
1,000 hours of audio / month
Pricing assumptions
Based on public pay-as-you-go pricing. Enterprise discounts and committed-use contracts may differ. Some providers charge separately for certain features. The calculator uses the public price for the provider configuration that most closely matches Soniox.
Speech-to-Text API
Token-based pricing
All API costs are calculated based on tokens.
Equivalent to about $0.10/hour for async (file) and $0.12/hour for real-time (streaming) transcription.
Duration of audio or streaming session
Custom instructions or context you provide
Transcription and optionally translation or other text returned by the model
Usage reference:
1 hour of audio is ~30,000 input audio tokens • 1 hour of speech is ~15,000 output text tokens • 1 character of output is ~0.3 tokens
Text-to-Speech API
Token-based pricing
All API costs are calculated based on tokens.
Equivalent to about $0.70/hour of generated speech.
Text input to generate
Duration of generated audio
Usage reference:
1 character ≈ 0.3 input text tokens • 15,000 input text tokens ≈ 1 hour of generated speech • 1 hour of generated speech ≈ 30,000 output audio tokens
Breakthrough innovation is why Soniox costs less
Soniox costs less because the technology is fundamentally more efficient. We built the full speech AI stack ourselves, from models to inference to real-time cloud infrastructure, and optimized every layer to process more audio with lower latency and less wasted compute.
That efficiency is what lets us offer production-grade speech AI at a fraction of the price of traditional providers.
Built for real-time speech AI
Soniox models are built from scratch for real-time speech understanding and generation, not adapted from general-purpose models that waste compute.
Custom inference engine
Our inference stack is built for low-latency audio streaming, batching, scheduling, and GPU utilization, so the same hardware processes more audio at lower cost.
Massive concurrency
The Soniox platform is engineered to run hundreds of thousands of concurrent streams efficiently, turning infrastructure scale into lower prices for every customer.