Model Tracker
SeamlessM4T v2
SeamlessM4T v2 is an AI model made by Meta. Meta released it on 30 November 2023. It is generally available. It takes text, audio and returns text, audio.
SeamlessM4T v2 is an AI model made by Meta. Meta released it on 30 November 2023. It is generally available. It takes text, audio and returns text, audio. Its weights are open. Its licence is CC-BY-NC 4.0.
- Released
- 30 November 2023 — ai.meta.com, read 16 October 2026
- Status
- Generally available — github.com, read 16 October 2026
- Takes
- Text, Audio — github.com, read 16 October 2026
- Returns
- Text, Audio — github.com, read 16 October 2026
- Open weights
- Yes — github.com, read 16 October 2026
- Licence
- CC-BY-NC 4.0 — github.com, read 16 October 2026
- Context window
- Not confirmed: The checked Meta pages and model card do not print a context-window value.
- Longest answer
- Not confirmed: The checked Meta pages and model card do not print a standard maximum output-token limit.
- Knowledge cutoff
- Not confirmed: The checked Meta pages and model card do not state a knowledge-cutoff date.
- API price, input
- Not confirmed: The checked Meta pages provide no standard API input-token price for this model.
- API price, output
- Not confirmed: The checked Meta pages provide no standard API output-token price for this model.
- Where
- Downloadable weights — github.com, read 16 October 2026
- Parameters
- Not confirmed: the figure is not printed in its sentence (a sum or a figure the page does not give)
- Model card
- https://huggingface.co/facebook/seamless-m4t-v2-large — github.com, read 16 October 2026
Questions
When was SeamlessM4T v2 released?
Meta released SeamlessM4T v2 on 30 November 2023.
Is SeamlessM4T v2 still available?
Yes: it is generally available, as Meta states it.
Are the weights of SeamlessM4T v2 open?
Yes: Meta publishes the weights of SeamlessM4T v2 for download.
What is the licence of SeamlessM4T v2?
The licence of SeamlessM4T v2 is CC-BY-NC 4.0, as Meta names it.
What does SeamlessM4T v2 take and return?
SeamlessM4T v2 takes text, audio and returns text, audio.
More from Meta
- Audiobox
- AudioGen
- Chameleon
- CM3leon
- Code Llama
- DINOv2
- DINOv3
- Emu
- Emu Edit
- Emu Video
- EnCodec
- I-JEPA
- ImageBind
- LLaMA
- Llama 2
- Llama 3
- Llama 3.1
- Llama 3.2
- Llama 3.3
- Llama 4 Maverick
- Llama 4 Scout
- M2M-100
- Make-A-Video
- Movie Gen
Sources
- Seamless Communication Models - AI at Meta (read 16 October 2026)
- Introducing a suite of AI language translation models that preserve expression and improve streaming (read 16 October 2026)
- seamless_communication/docs/m4t/README.md at main · facebookresearch/seamless_communication (read 16 October 2026)
- GitHub - facebookresearch/seamless_communication: Foundational Models for State-of-the-Art Speech and Text Translation (read 16 October 2026)
- facebook/seamless-m4t-v2-large · Hugging Face (read 16 October 2026)