Pricing Details
Speech-to-Text API:Async (file): $1.50 per 1M input audio tokens, $3.50 per 1M input text tokens, and $3.50 per 1M output text tokens.Real-time (streaming): $2.00 per 1M input audio tokens, $4.00 per 1M input text tokens, and $4.00 per 1M output text tokens.Equivalent to about $0.10 per hour for async and $0.12 per hour for real-time transcription. Async (file): $1.50 per 1M input audio tokens, $3.50 per 1M input text tokens, and $3.50 per 1M output text tokens. Real-time (streaming): $2.00 per 1M input audio tokens, $4.00 per 1M input text tokens, and $4.00 per 1M output text tokens.Equivalent to about $0.10 per hour for async and $0.12 per hour for real-time transcription. Equivalent to about $0.10 per hour for async and $0.12 per hour for real-time transcription. Free: $0.00 per month; includes real-time transcription and translation in 60+ languages, summaries and insights, project organization, online/offline recording, 10 free credits weekly, and 100 bonus credits per referral. Pro: $19.99 per month; includes unlimited transcription, translation, summaries, insights, priority processing, and early access to new features. Business: $25.00 per user per month (billed annually); includes all Pro features plus multi-user team support, centralized management, shared projects, team-wide access, collaboration tools, region selection, discounts for additional members, and advanced admin controls. Disclaimer: Please note that pricing information may not be up to date. For the most accurate and current pricing details, refer to the official Soniox Speech-to-Text website.
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Strengths
- High Accuracy Across Languages: Strong performance in non-English audio, accents, and mixed-language speech compared with large incumbents.
- Single API for Many Tasks: Transcription, diarization, and translation delivered together, reducing engineering overhead.
- Low-Latency Streaming: Suitable for live captions, interactive agents, and instant translation during meetings or calls.
- Flexible Context Inputs: Domain hints and custom terms significantly cut down post-editing for jargon-heavy use cases.
- Cost-Effective at Scale: Effective rates around $0.10 per hour async and $0.12 per hour streaming compare favorably to Google, Azure, Speechmatics, and OpenAI.
Limitations
- Token-Based Pricing Complexity: Developers must think in tokens for audio and text, which can feel less intuitive than flat per-minute billing.
- Regional Availability Still Expanding: Sovereign cloud regions are currently limited to the US, EU, and Japan, with more promised but not yet live.
- Ecosystem Maturity: Compared with hyperscalers, there are fewer prebuilt third-party integrations and templates, so more integration work may fall on the team.
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What You Get
Key Features
- Universal Multilingual Model: Single API for speech recognition and any-to-any translation between 60+ languages, including mixed-language utterances and dialects.
- Real-Time Token-Level Streaming: Returns token-level output within milliseconds, keeping captions, voicebots, and assistants tightly in sync with live speech.
- Context and Domain Adaptation: Accepts hints such as domain, topic, custom vocabulary, and reference documents to improve recognition of medical, legal, financial, or branded terminology.
- Conversation Intelligence Built In: Handles automatic language detection, speaker diarization, endpointing, timestamps, and confidence scores in a single unified stream.
- Privacy and Compliance Controls: Offers regional data residency (US, EU, Japan), keeps audio in memory only by default, and is SOC 2 Type II, HIPAA, and GDPR compliant.
- Soniox App Companion: iOS and Android app for live transcription, translation, summaries, and insights, powered by the same universal speech AI.
- ProsHigh Accuracy Across Languages: Strong performance in non-English audio, accents, and mixed-language speech compared with large incumbents.Single API for Many Tasks: Transcription, diarization, and translation delivered together, reducing engineering overhead.Low-Latency Streaming: Suitable for live captions, interactive agents, and instant translation during meetings or calls.Flexible Context Inputs: Domain hints and custom terms significantly cut down post-editing for jargon-heavy use cases.Cost-Effective at Scale: Effective rates around $0.10 per hour async and $0.12 per hour streaming compare favorably to Google, Azure, Speechmatics, and OpenAI.ConsToken-Based Pricing Complexity: Developers must think in tokens for audio and text, which can feel less intuitive than flat per-minute billing.Regional Availability Still Expanding: Sovereign cloud regions are currently limited to the US, EU, and Japan, with more promised but not yet live.Ecosystem Maturity: Compared with hyperscalers, there are fewer prebuilt third-party integrations and templates, so more integration work may fall on the team.
Best For
- Contact Centers and BPOs: Using Soniox for multilingual call transcription, analytics, and automated quality monitoring.
- Healthcare Providers and Healthtech: Applying medical-grade transcription with domain context for clinical documentation and ambient note-taking.
- SaaS Voice and AI Assistant Vendors: Powering voicebots, agent assist tools, and real-time translation in customer-facing products.
- Media, Events, and EdTech Platforms: Delivering live captions, multilingual subtitles, and searchable transcripts for streams, webinars, and courses.
- Uncommon Use Cases: Deployed in automotive voicebots for license-plate recognition and domain-specific identifiers, and explored in wearables or field devices that need low-latency transcription and translation on the go.
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