Model Tracker
SeamlessExpressive
SeamlessExpressive is an AI model made by Meta. Meta released it on 30 November 2023. It is generally available. It takes audio and returns audio.
- Released
- 30 November 2023 — ai.meta.com, read 16 October 2026
- Status
- Generally available — ai.meta.com, read 16 October 2026
- Takes
- Audio — github.com, read 16 October 2026
- Returns
- Audio — github.com, read 16 October 2026
- Open weights
- Not confirmed: Meta says it is publicly releasing the models, but access to SeamlessExpressive artifacts requires approval and the model has a separate license. The maker's pages checked do not explicitly classify its weights as open.
- Licence
- Not confirmed: The repository says SeamlessExpressive is under its own Seamless license, but the license's own name is “Seamless Licensing Agreement”; the register requires the license's own name, and the repository does not explicitly state that this title is the name of the model's license.
- Context window
- Not confirmed: The maker's pages checked do not print a context-window figure for SeamlessExpressive.
- Longest answer
- Not confirmed: The maker's pages checked do not print a standard maximum-output limit for SeamlessExpressive.
- Knowledge cutoff
- Not confirmed: The maker's pages checked do not state a knowledge-cutoff date for SeamlessExpressive.
- API price, input
- Not confirmed: The maker's pages checked do not list a standard API input price for SeamlessExpressive.
- API price, output
- Not confirmed: The maker's pages checked do not list a standard API output price for SeamlessExpressive.
- Where
- Downloadable weights — github.com, read 16 October 2026
- Parameters
- Not confirmed: The maker's repository links to a model card but does not print a parameter count for SeamlessExpressive in the maker-owned pages checked.
- Model card
- Not confirmed: The repository links to a model card hosted on a third-party domain. Its address is not printed in the maker-owned page text, so it is excluded under the maker-pages-only source rule.
Questions
When was SeamlessExpressive released?
Meta released SeamlessExpressive on 30 November 2023.
Is SeamlessExpressive still available?
Yes: it is generally available, as Meta states it.
What does SeamlessExpressive take and return?
SeamlessExpressive takes audio and returns audio.
More from Meta
- Audiobox
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- CM3leon
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- Emu
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- 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 - 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)
- GitHub - facebookresearch/seamless_communication: Foundational Models for State-of-the-Art Speech and Text Translation (read 16 October 2026)
- seamless_communication/docs/expressive/README.md at main · facebookresearch/seamless_communication · GitHub (read 16 October 2026)
- seamless_communication/SEAMLESS_LICENSE at main · facebookresearch/seamless_communication · GitHub (read 16 October 2026)