ModelTreeAI Model Lineage
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Model creator

Meta

Creator of two model lines that reach people differently, so not every Meta model is downloadable. Llama is published as downloadable weights under Meta's own community licences, collected at huggingface.co/meta-llama. Muse, developed by Meta Superintelligence Labs, is served only through Meta's own surfaces — the Meta AI app, meta.ai, and the Meta Model API — and no Muse weights are released. Both lines are announced on AI at Meta, which is what website and releasePage record: it is an announcement stream rather than an index of releases, and nothing checked here shows a single Meta page that lists both lines. The Hugging Face collection is Llama-only and is recorded as a source rather than as this creator's release page. The former Llama-only site www.llama.com now redirects to developer.meta.com and is no longer recorded here.

3 familiesChecked Sep 1, 2026
Featured ecosystems

Recorded lineage, creator by creator

Nesting shows a recorded predecessor Model Passport
CreatorMetaCreator of two model lines that reach people differently, so not every Meta model is downloadable. Llama is published as downloadable weights under Meta's own community licences, collected at huggingface.co/meta-llama. Muse, developed by Meta Superintelligence Labs, is served only through Meta's own surfaces — the Meta AI app, meta.ai, and the Meta Model API — and no Muse weights are released. Both lines are announced on AI at Meta, which is what website and releasePage record: it is an announcement stream rather than an index of releases, and nothing checked here shows a single Meta page that lists both lines. The Hugging Face collection is Llama-only and is recorded as a source rather than as this creator's release page. The former Llama-only site www.llama.com now redirects to developer.meta.com and is no longer recorded here.
Family

Muse

First released Apr 8, 2026

1 recorded lineage link in this family.

No creator statement of what these 3 variant names mean is recorded for Muse.

Family

Llama 4

First released Apr 5, 2025

0 recorded lineage links in this family.

No creator statement of what these 2 variant names mean is recorded for Llama 4.

Family

Llama 3

First released Jul 23, 2024

No recorded lineage links in this family, so no releases are connected here.

No creator statement of what these 6 variant names mean is recorded for Llama 3.

Families without a featured release are not drawn here. Every record in the catalog, featured or not, is listed in the model index and the Model Tree.

Official record

The organization's own surfaces, and the verification date these facts were last checked against them.

Website
https://ai.meta.com/
Release page
https://ai.meta.com/blog/
Type
company
Verified
Sep 1, 2026

Releases

Every release recorded for Meta, current and legacy alike. Filter by lifecycle status; the choice is kept in the page address so it survives a reload or a shared link.

Showing all 12 releases.

Primary sources

The organization-level sources behind the summary above.