Soniox and spf.io are both AI meeting assistants for recording, transcription, and summaries, compared here on pricing, features, and workflow fit. Soniox: Multilingual speech AI platform offering real-time and async speech-to-text and translation APIs for meetings and voice apps. spf.io: AI captioning and translation platform for in-person, virtual, and hybrid events, supporting 100+ languages with broad streaming integrations. They overlap on ai-meeting-assistants, ai-transcription, so the right pick depends on team size, budget, and which meeting workflows you automate.
How Hosiqo compares and tests toolsFinal recommendation
For ai-meeting-assistants, ai-transcription workflows, shortlist Soniox when transcribing multilingual meetings and calls in real time matters most, and spf.io when captioning and translating large in-person conferences across projectors and mobile devices matters most. Both record across Zoom, Google Meet, and Microsoft Teams; trial each on real meetings before committing.
Multilingual speech AI platform offering real-time and async speech-to-text and translation APIs for meetings and voice apps.
AI captioning and translation platform for in-person, virtual, and hybrid events, supporting 100+ languages with broad streaming integrations.
Soniox is a free tier with paid upgrades (freemium); spf.io is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Soniox | spf.io |
|---|---|---|
| Core capability | Real-time and asynchronous speech-to-text APIs | Automatic live captions and translation in 100+ languages, with translated audio in 70+ |
| Standout feature | Speaker separation for multi-participant conversations | Projector display of up to four languages plus mobile QR/URL attendee access |
| Team usage | Real-time speech translation across many language pairs | Integrations with Zoom, Teams, Google Meet, YouTube, OBS, StreamYard, vMix, and Twitch |
| Integrations | Code-switching support for mid-sentence language changes | Supervised/edited captioning and bidirectional translation modes |
| Languages & capture | Web and server SDKs for browser and backend integration | Vocabulary fine-tuning, custom speech recognition, and adapted translation models |
| Best-fit workflow | Enterprise compliance with SOC 2, ISO 27001, HIPAA, and GDPR | Optional professional captioners, interpreters, and remote operators as add-ons |
Soniox
Choose Soniox if you need transcribing multilingual meetings and calls in real time — strengths include strong multilingual and translation capabilities for global meetings.
spf.io
Choose spf.io if you need captioning and translating large in-person conferences across projectors and mobile devices — strengths include very broad language coverage for both captions and translated audio.
Soniox
spf.io
It depends on your workflow. Soniox is strong for transcribing multilingual meetings and calls in real time, while spf.io is strong for captioning and translating large in-person conferences across projectors and mobile devices. Both transcribe and summarize meetings.
Soniox is a free tier with paid upgrades and spf.io is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Yes. Many teams run more than one meeting assistant when the workflows are complementary and the budget is justified.