Soniox vs Google speech-to-text
Compare the Soniox and Google Gemini 3.5 Transcribe APIs on your own audio: accuracy, real-time streaming, translation, and cost.
Soniox vs Google pricing, side by side
Google and most speech-to-text APIs charge extra for diarization, translation, and multilingual support, so the headline rate hides the real bill. Soniox is one flat rate with all of it included. Set your monthly hours below to calculate your all-in cost per hour and see how Soniox compares to Google, side by side.
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.
Why teams choose Soniox over Google
Global fluency, not just coverage.
Soniox delivers native-speaker level accuracy across 60+ languages, including mixed-language phrases, regional accents, and spelled names and codes – even in noisy, unscripted conversations. No clean audio or tagging required. It just works.
“It just gets the words right, any language, any accent, any context. That’s what accuracy is supposed to look like.”
Gemini 3.5 Transcribe covers 85+ languages. Live streaming has no speaker attribution, and mixed-language phrases still need Soniox-style mid-sentence code-switching.
Transcribe and translate at the speed of speech.
Soniox captures every word the moment it’s spoken, with token-level updates that appear instantly. Captions stay in sync. Assistants respond in real time. Conversations never fall behind.
“It’s so fast, captions appear before people even finish talking. Zero lag. No buffering. Nothing.”
gemini-3.5-transcribe-live streams interim and final transcripts, without Soniox token-level non-final → final refinement.
Understand conversations, not just words.
Soniox recognizes speaker turns, sentence boundaries, and conversational pauses, automatically separating speakers and structuring dialogue. It’s made for the way people actually talk.
“Soniox knows who’s speaking and when each thought ends. The real-time transcripts read like true dialogue, not data dumps.”
Google speaker attribution runs on gemini-3.5-transcribe for pre-recorded audio (up to 3 speakers), not on gemini-3.5-transcribe-live.
One model that works everywhere.
Transcribe, translate, and understand speech, all from a single API call. Soniox handles speaker separation, language detection, and any-to-any translation out of the box. Build in the language you know, deploy globally with no tuning or switching endpoints.
Google splits live transcription, pre-recorded transcription, and translation across separate models and APIs, not one real-time call like Soniox.
Built-in domain intelligence.
Soniox understands technical terms, industry jargon, and custom phrasing, adapting on the fly. You can even enforce terminology and steer translations to match your product and audience.
“Soniox captures complex medical terminology with high accuracy, helping physicians finalize notes faster and focus on patient care.”
Gemini 3.5 Transcribe supports custom vocabulary, but not real-time translation steering or contextual vocabulary like Soniox.
Trusted by teams building global voice products
Developers choose Soniox for accuracy that scales globally
Gemini 3.5 Transcribe supports 85+ languages. Developers still split live transcription, pre-recorded transcription, and translation across separate APIs. Soniox delivers higher accuracy, faster streaming, and all features in one API at about 4.5x lower cost on streaming.
Higher accuracy on real-world speech
English Word Error Rate 1.25% vs 2.24% for Google (lower is better).
Streaming that feels live
Token-level updates in milliseconds, with manual finalization and endpoint detection.
Lower cost, higher value
Soniox is about 4.5x cheaper than Google on streaming (~$0.10–0.12/hr vs ~$0.30–0.54/hr).
Soniox surpasses Google in any language
Get the most accurate, real-time speech-to-text transcription and translation in 60+ languages
Frequently asked questions about Soniox vs Google
Is Soniox cheaper than Google Speech-to-Text?
Does Google support more languages than Soniox?
Does Google support diarization and timestamps?
Can Soniox handle multiple languages in one stream?
How does Soniox streaming compare to Google's?
Do I need multiple APIs with Google?
Does Google support two-way translation?
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