Fish Audio S vs Soniox

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-08
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At a glance

DimensionFish Audio SSoniox
PricingFreePaid (no public tier listed)
Core OfferingTTS + voice cloning + emotion controlSTT + TTS + translation via unified API
Languages30+60+ (STT & TTS), 3600 translation pairs
LatencyReal-time (no sub-100ms guarantee)Sub-200ms streaming
Compliance/EnterpriseNot specifiedSOC 2, ISO 27001, HIPAA, GDPR, data residency
Latest NewsJune 2026: Free TTS API + professional voice cloningJune 2026: v5 Real-Time & Async with major accuracy gains

Choose Fish Audio S if you need free, emotionally expressive TTS and voice cloning for creative projects. Choose Soniox if you need a compliant, multilingual STT/TTS/translation API for enterprise voice products. Fish Audio wins on cost and emotion; Soniox wins on breadth, latency, and enterprise readiness.

Try Fish Audio STry Soniox
Fish Audio S
Fish Audio S

Fish Audio S2.1 Pro is a real-time text-to-speech and voice cloning platform built around emotion-tag control and a free API tier for developers.

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Soniox
Soniox

Soniox speech AI API: real-time speech-to-text, TTS, and translation in 60+ languages.

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Pricing
Freemium
Paid
Plans
$0/mo
$11/mo billed annually ($15/mo month-to-month)
$75/mo billed annually ($100/mo month-to-month)
$749/mo billed annually ($999/mo month-to-month)
Custom
~$0.10/hr of audio (token-based: $1.50/1M input audio
~$0.12/hr of audio (token-based: $2.00/1M input audio
~$0.70/hr of generated speech (token-based: $4.00/1M input
Popularity
17 views
7.2k views
Skill Level
Beginner-friendly
Advanced
API Available
Platforms
WebAPI
WebAPI
Categories
🎙️ Voice & Speech
✨ Transcription & Speech-to-Text🎙️ Voice & Speech✨ Translation & Localization
Features
Real-time streaming text-to-speech API
Emotion tags including [angry], [sad], [excited], [whispering], [soft], [breathy]
Special-effect tags including [laughing], [sobbing], [sighing], [panting], [long pause]
Voice cloning from roughly 15 seconds of audio
Professional voice cloning with verified studio-quality output
AI Voice Design: generate a custom voice from a text prompt
2,000,000+ user-uploaded voice library
Multilingual support across 30+ languages
Speech-to-text with multispeaker handling and emotion tags
End-to-end voice agent solution
Ultra-low latency streaming for conversational chatbots
ACX/Audible-compliant audiobook narration
Web editor with 30,000 character input per generation
Avatar Lipsync for talking avatars, ads and explainers
Free API tier for developers
Real-time speech-to-text streaming with sub-200ms latency
Async (batch) file transcription at about $0.10/hour of audio
Text-to-speech generation in 60+ languages with expressive audio tags
Instant voice cloning from a few seconds of clear speech audio
Voice library with 200+ built-in voices tagged by accent, age, gender, and style
Real-time speech translation across 3,600 language pairs
Transcription and translation returned in the same real-time API call
Multi-speaker diarization bundled into the hourly rate
Language identification and mid-sentence code-switching support
Smart formatting, punctuation, and alphanumeric accuracy bundled
stt-rt-v5 streaming model and TTS v2 speech generation model
Low-latency streaming TTS that starts generating audio from the first few words
WebSocket streaming API and REST API for batch workflows
SDKs for Python, Node, Web, React, and React Native
Soniox Compare runs head-to-head STT, TTS, and translation on your own audio
Integrations
LiveKit
Pipecat
Agora
Tencent Cloud

What real users say: Fish Audio S vs Soniox

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Fish Audio S

15 mentions across 1 sources · 0% positive — critical (averaged across 1 source)

Lemmy

What users praise

  • • Real-time TTS with emotion control via simple tags.
  • • Voice cloning from just 10 seconds of audio.
  • • Multilingual support including Japanese, French, Arabic.
  • • Large voice library with 2,000,000+ voices.

What frustrates them

  • • No community feedback to validate quality or reliability.
  • • S1 model superseded quickly, raising upgrade concerns.
  • • Paid plans may be costly for heavy commercial use.
  • • Emotion control might sound unnatural in practice.

Researched Jul 3, 2026

Soniox

41 mentions across 2 sources · 80% positive (averaged across 2 sources)

Hacker News, Bluesky

What users praise

  • • Sub-200ms latency for real-time streaming.
  • • Cost-effective pricing at 8-10x less than major cloud providers.
  • • Multilingual support for 60+ languages with code-switching.
  • • Bundled translation across 3,600 language pairs at no extra cost.

What frustrates them

  • • Relatively expensive for low-volume or hobbyist use.
  • • Requires API skills; no no-code integrations available.
  • • Accuracy with heavy foreign accents can lag behind competitors.
  • • Not available as a standalone macOS app or on App Store.

Researched Jul 16, 2026

Who should pick which

  • Content creator
    Pick: Fish Audio S

    Free, emotionally controllable TTS and voice cloning ideal for YouTube videos, audiobooks, and character voices.

  • Enterprise voice agent builder
    Pick: Soniox

    Compliant, low-latency, multilingual STT/TTS/translation for global customer support or sales agents.

  • Indie developer prototyping
    Pick: Fish Audio S

    Free real-time TTS API with zero upfront cost; quick to integrate for expressive voice features.

  • Healthcare app developer
    Pick: Soniox

    HIPAA compliance, audio never stored, and in-region processing meet strict regulatory requirements.

  • Game developer
    Pick: Fish Audio S

    Emotion tags and voice cloning enable dynamic character voices; free tier fits indie budgets.

Frequently Asked Questions

Fish Audio S vs Soniox: which should you choose?

Choose Fish Audio S if you need free, emotionally expressive TTS and voice cloning for creative projects. Choose Soniox if you need a compliant, multilingual STT/TTS/translation API for enterprise voice products. Fish Audio wins on cost and emotion; Soniox wins on breadth, latency, and enterprise readiness.

Does Fish Audio offer real-time speech-to-text?

Yes, Fish Audio includes speech-to-text (transcription) capabilities in its platform.

Which tool has the best language support?

Soniox supports 60+ languages and 3,600 translation pairs; Fish Audio supports 30+ languages. Soniox is broader for multilingual use.

Can I clone a voice with Soniox?

No, Soniox does not offer voice cloning. Fish Audio specializes in cloning from 10–15 seconds of audio.

Is Fish Audio compliant with HIPAA or SOC 2?

Fish Audio does not advertise compliance certifications. Soniox is SOC 2 Type 2, ISO 27001, HIPAA, and GDPR compliant.

Which tool is better for real-time translation?

Soniox is built for real-time translation across 3,600 language pairs with sub-200ms latency. Fish Audio focuses on TTS and voice cloning, not translation.

Does either tool have a free tier?

Fish Audio offers a free TTS API and S2.1 Pro model. Soniox is paid with no public free tier.

Can Fish Audio handle mid-sentence language switching?

Fish Audio does not advertise code-switching. Soniox supports mid-sentence language switching natively.

Which tool has lower latency for real-time voice?

Soniox claims sub-200ms streaming latency. Fish Audio's real-time API does not specify sub-100ms, so Soniox is likely more suitable for latency-critical applications.

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Explore each tool further

Fish Audio S
View Fish Audio S reviewFish Audio S alternatives
Soniox
View Soniox reviewSoniox alternatives

Browse these categories

Best AI Voice & Speech toolsBest AI Transcription & Speech-to-Text toolsBest AI Translation & Localization tools
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Last reviewed: July 3, 2026