Celeste AI: Brazilian Portuguese-focused AI voice and transcription platform offering on-demand transcription plus a meeting assistant and AI notes, with credit-based and subscription plans. SyncWords: Live AI captioning, subtitling, and voice-dubbing platform for webinars, streams, and hybrid events with real-time multilingual output. This comparison weighs them on pricing, features, and everyday workflow fit.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Celeste AI when brazilian teams transcribing meetings and calls in portuguese matters most, and SyncWords when delivering accessible, fcc-compliant live captions for a broadcast matters most. Test each on your own meetings; the right choice tends to become obvious quickly.
Brazilian Portuguese-focused AI voice and transcription platform offering on-demand transcription plus a meeting assistant and AI notes, with credit-based and subscription plans.
Live AI captioning, subtitling, and voice-dubbing platform for webinars, streams, and hybrid events with real-time multilingual output.
Celeste AI is a Brazilian voice AI and transcription platform that specializes in Portuguese, particularly Brazilian Portuguese, while also processing audio in additional languages such as English, Spanish, German, Italian, and French. Originally known for automated audio-to-text transcription that the company positions as far more efficient than manual transcription, Celeste AI has expanded into a broader suite that includes a Meeting Assistant (Assistente de Reunião) and AI Notes (Notas de IA), alongside transcription and quality-monitoring offerings. The platform uses machine learning speech models tuned for Portuguese and is offered both as an on-demand service and via an API, so users and businesses can transcribe content as needed. Its on-demand model lets customers pay only for the hours they actually use by purchasing credits, with flexible subscription plans available for those who have recurring transcription needs. As a Brazilian company connected to local institutions such as FGV Ventures and the São José dos Campos technology park, Celeste AI is oriented toward the Brazilian market and Portuguese-language workflows, and it reports a growing user base. The service is currently operating, with a functioning login, demo requests, and support, and is suited to professionals and companies that need accurate Portuguese transcription and meeting documentation. Pricing varies by plan. Check the official website for current pricing.
Best suited for
SyncWords is an AI-powered platform for delivering live and recorded video content to multilingual audiences through real-time captions, subtitles, and voice dubbing. For live scenarios, it produces frame-accurate AI captions that meet broadcast accessibility standards such as CEA-608/708, and its SyncWords Live offering provides professional captioning and real-time translated subtitles for webinars, streaming services, and hybrid events. The platform translates into a wide range of languages, including non-Latin scripts such as Cyrillic, CJK, Arabic, Hebrew, and Thai, and recent engineering work has driven latency down to roughly a second or less even in demanding live environments. Its newer Vocalics capability adds real-time AI voice dubbing that aims to preserve a speaker's tone and delivery across languages. Content is delivered through no-download widget URLs as well as streaming formats like HLS, SRT, CMAF, and VTT, with integrations spanning platforms such as AWS, YouTube, and Vimeo. SyncWords reports processing tens of thousands of events and hundreds of thousands of hours of media, and it received an industry innovation award in 2025, confirming active operation. It best fits broadcasters, media teams, and event organizers who need accessible, multilingual live captioning and translation at scale. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Celeste AI is a free tier with paid upgrades (freemium); SyncWords is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Celeste AI | SyncWords |
|---|---|---|
| Core capability | AI transcription specialized for Brazilian Portuguese | Real-time AI live captions with broadcast accessibility compliance |
| Standout feature | Meeting Assistant for capturing and documenting meetings | Live translated subtitles across many languages including non-Latin scripts |
| Team usage | AI Notes for organizing transcribed content | Vocalics real-time AI voice dubbing that preserves speaker delivery |
| Integrations | Support for multiple languages including English, Spanish, German, Italian, and French | Ultra-low latency output for live streams and events |
| Languages & capture | On-demand credit-based usage plus flexible subscription plans | No-download widget URLs plus HLS, SRT, CMAF, and VTT delivery |
| Best-fit workflow | API access for integrating transcription into other workflows | Custom dictionaries for accurate terminology in live sessions |
Celeste AI
Choose Celeste AI if you need brazilian teams transcribing meetings and calls in portuguese — strengths include strong focus on brazilian portuguese transcription accuracy.
SyncWords
Choose SyncWords if you need providing live translated subtitles for a webinar or streamed event — strengths include strong focus on broadcast-grade, low-latency live captioning.
Celeste AI
SyncWords
It depends on your workflow. Celeste AI is strong for brazilian teams transcribing meetings and calls in portuguese, while SyncWords is strong for providing live translated subtitles for a webinar or streamed event. Both transcribe and summarize meetings.
Celeste AI is a free tier with paid upgrades and SyncWords is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
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