Soniox

Introducing Soniox STT v6, the world’s first speech recognition model that knows what your voice agent is saying and automatically filters out the agent’s own voice.

Two connected innovations make this possible:
→ Agent text input gives recognition context from both sides of the conversation, improving its understanding of user responses.
→ Agent voice echo cancellation filters out the agent’s playback while continuing to listen to the user, even when they interrupt.

The result: fewer false interruptions, fewer clarification loops, and more reliable conversations.

V6 also delivers significantly higher accuracy across 60+ languages for voice typing, meeting transcription, multilingual recognition, and real-time translation, with stronger speaker diarization, language identification, endpoint detection, and context customization.

One unified speech model. All 60+ languages. The full feature set, with languages freely mixed.

Available now for real-time streaming and asynchronous transcription.

Explore what’s new in Soniox STT v6:
soniox.com/blog/soniox-st…

Soniox STT v6 is the most accurate real-time STT in the world right now, according to @pipecat_ai's benchmark.

And because we are also fast, the top 3 models on the Pareto frontier are all Soniox real-time STT models.

Soniox STT v6 hit a 0.71% pooled semantic word error rate and delivered final transcripts a median of 266 ms after the speaker stopped.

Do not take any benchmark at face value. Test providers side by side on your own audio: soniox.com/compare-stt

Soniox STT v6 delivers our most accurate and fastest voice typing yet across 60+ languages.

More accurate where it matters: numbers, currencies, units, dates, names, alphanumeric identifiers, and specialized terminology.

For v6, we invested heavily in real-world dictation data across applications, professional vocabulary, speaking styles, and languages. The result is significantly higher accuracy for the speech your users actually dictate.

Developers can further improve accuracy by supplying context such as product names, professional vocabulary, and project terminology.

Fewer corrections. Less friction. Voice input people can rely on.

Build voice typing into editors, messaging apps, forms, medical software, and enterprise tools across all 60+ languages.

Explore voice typing with Soniox STT v6:
soniox.com/blog/soniox-st…

Your voice agent should never interrupt itself. Soniox STT v6 is the world’s first speech-to-text model with agent voice echo cancellation.

When the agent’s playback reaches the microphone, STT can mistake it for user speech. The agent interrupts itself, responds to its own words, or enters a feedback loop.

V6 uses agent text input capability to distinguish the agent’s playback from user speech and automatically filter it out of recognition.

Crucially, it keeps listening while the agent speaks. When the user interrupts, v6 recognizes their speech while filtering out the agent’s voice.

Fewer false interruptions. Fewer feedback loops. More reliable voice conversations.

Across speakerphones, laptops, in-car systems, and other devices where playback reaches the microphone. Available across all 60+ languages.

Explore agent voice echo cancellation:
soniox.com/blog/soniox-st…

Speech recognition has been missing half the conversation. Soniox STT v6 is the world’s first STT model that knows what your voice agent is saying.

Introducing agent text input. Developers can stream the agent’s outgoing text into STT as it is sent to TTS, giving recognition context from both sides of the conversation.

The question asked, the options offered, and the details being confirmed all help the model recognize the user’s response.

V6 uses that context to recognize names, numbers, specialized terms, and short answers significantly more accurately.

Fewer clarification loops. Less frustration. More reliable voice agents.

Available across all 60+ languages.

Explore agent text input:
soniox.com/blog/soniox-st…