Meta SeamlessM4T
by Meta AI
Meta SeamlessM4T is an open research model for multilingual speech and text translation. It supports speech recognition, speech-to-speech translation, speech-to-text translation, text translation, and text-to-speech translation.
Why Abandoned
Meta’s Seamless Communication research page and public GitHub repository remain available. Meta released SeamlessM4T v2 and related SeamlessExpressive and SeamlessStreaming models in November 2023; no verified shutdown has been announced.
💵 Pricing & access
- Pricing model
- Not documented
- Starting at
- Not documented
- Official site
- Visit Meta SeamlessM4T →
🩺 Health Signals
- HTTP Status
- 200
- Response
- —
- SSL
- —
- Confidence
- 86%
- Domain expires
- —
- Last content change
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- Last tweet
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- API status
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📅 Timeline
SeamlessM4T announced
Research paper published
SeamlessM4T v2 released
🔄 Alternatives to Meta SeamlessM4T
DeepL Translator
🟢ActiveDeepL Translator is a neural machine translation service from DeepL SE. It translates typed text, documents, and supported websites across multiple languages through web, desktop, mobile, browser, and API products.
Google Translate
🟢ActiveGoogle Translate is a multilingual machine-translation service for translating text, documents, websites, images, handwriting, and speech. It is available on the web and through mobile apps and developer APIs.
ModernMT
🟢ActiveModernMT is an adaptive machine translation platform developed by Translated. It uses document context and learns from translation memories and human corrections to tailor output for enterprises and language-service workflows.
Naver Papago
🟢ActiveNaver Papago is a neural machine translation service from South Korea's Naver. Its web and mobile apps translate text, speech, images, documents, websites, and conversations across supported languages.
🪦 Other dead Translation tools
Skype Translator
🔴Shutdown / DeadSkype Translator was Microsoft’s speech and text translation feature for Skype calls and chats. It provided live translated captions and machine-translated instant messages across supported languages.
Transifex
🟡Acquired / MergedTransifex is a cloud localization platform for managing software, website, and digital-content translation. It combines translation workflows, team collaboration, integrations, translation memory, and AI-assisted automation.
❓ Frequently Asked Questions
What is Meta SeamlessM4T?
Meta SeamlessM4T is a multilingual, multimodal AI model designed to perform speech recognition and translation across speech and text within one model.
What can Meta SeamlessM4T do?
It supports automatic speech recognition, speech-to-text translation, speech-to-speech translation, text-to-text translation, and text-to-speech translation, with language coverage varying by task and model version.
Is Meta SeamlessM4T free and open source?
Meta publicly released model code and research checkpoints, but usage is governed by Meta’s repository licenses rather than an unrestricted public-domain grant. Users should review the current license before commercial deployment.
How is SeamlessM4T v2 different from the original model?
SeamlessM4T v2 uses an updated architecture and training data and serves as the foundation for SeamlessExpressive and SeamlessStreaming, which target expressive speech preservation and low-latency translation.
What are the best Meta SeamlessM4T alternatives?
Catalogue alternatives include Google Translate and Naver Papago for consumer translation, DeepL Translator for text and document translation, and ModernMT for adaptive machine translation workflows.