Model creator

Sakana AI

A research-focused company that states its core focus is applying nature-inspired ideas such as evolution and collective intelligence to creating foundation models, and that released a set of Japanese-language foundation models produced by its Evolutionary Model Merge method.

1 familyChecked Aug 29, 2026

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CreatorSakana AIA research-focused company that states its core focus is applying nature-inspired ideas such as evolution and collective intelligence to creating foundation models, and that released a set of Japanese-language foundation models produced by its Evolutionary Model Merge method.

Family

EvoLLM-JP

First released Mar 2024

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

No creator statement of what this variant name means is recorded for EvoLLM-JP.

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.

Sakana AI / EvoLLM-JP Verified

EvoLLM-JP v1 7B

An experimental general-purpose Japanese language model that Sakana AI produced by merging existing models with its Evolutionary Model Merge method, released as a research prototype. Recorded at month precision because the announcement post’s date, its own retrospective wording, and the repository timestamp do not agree on a day.

Release: Mar 2024
Status: Research
Access: Open-weight

Recorded lineage

Earlier in lineage: No recorded predecessor.
Later in lineage: No recorded successor.
Released alongside: No recorded sibling release.
Derived from: No recorded derivation.

Lineage trail

Focus dims unrelated releases and lists every recorded relationship.

When to use it

Research and development only; the card states the model is an experimental prototype, which is why the record carries research status. The weights ship under Microsoft Research License Terms because a Microsoft model was merged in, which is a licence fact and not an attribution: the card names Sakana AI as the developer and this dataset records Sakana AI as the creator. The three merged input models are not recorded entities here, so no derivation links are recorded.

View Model Passport Add to comparison Primary source

Microsoft Research License Terms shipped with EvoLLM-JP-v1-7B | Checked Sep 6, 2026

Official record

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

Website: https://sakana.ai/
Release page: https://huggingface.co/SakanaAI
Type: company
Verified: Aug 29, 2026

Releases

Every release recorded for Sakana AI, 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 1 release.

EvoLLM-JP v1 7B Research
EvoLLM-JP7B Mar 2024 Open-weight

Primary sources

The organization-level sources behind the summary above.

official announcementEvolving New Foundation Models: Unleashing the Power of Automating Model Development
Sakana AI | Checked Sep 1, 2026
model cardEvoLLM-JP-v1-7B model card
Sakana AI | Checked Sep 1, 2026