Model creator

ByteDance Seed

ByteDance’s Seed team, the research organization that develops and publishes the Seed model line. It is recorded as the creator of those models and is deliberately kept separate from ByteDance’s consumer assistant products, which this dataset does not record.

1 familyChecked Aug 29, 2026

Featured ecosystems

Recorded lineage, creator by creator

Nesting shows a recorded predecessor Model Passport

CreatorByteDance SeedByteDance’s Seed team, the research organization that develops and publishes the Seed model line. It is recorded as the creator of those models and is deliberately kept separate from ByteDance’s consumer assistant products, which this dataset does not record.

Family

Seed-OSS

First released Aug 20, 2025

0 recorded lineage links in this family.

No creator statement of what these 2 variant names mean is recorded for Seed-OSS.

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.

ByteDance Seed / Seed-OSS Verified

Seed-OSS 36B Base

ByteDance Seed’s pretrained (non-instruction-tuned) 36B open-weight base model, released the same day as its Instruct sibling. The card states "This model card is dedicated to the `Seed-OSS-36B-Base` model." and that the series was trained "with only 12T tokens", released "under the Apache-2.0 license"; the card’s Model Summary gives "Parameters: 36B" and "Context Length: 512K". The card notes it is released "both with and without synthetic data versions"; this record covers the base line without asserting a ranking between them.

Release: Aug 20, 2025
Status: Available
Access: Open-weight

Recorded lineage

Earlier in lineage: No recorded predecessor.
Later in lineage: No recorded successor.
Released alongside: Seed-OSS 36B Instruct
Derived from: No recorded derivation.

Lineage trail

Focus dims unrelated releases and lists every recorded relationship.

When to use it

Pretraining base for downstream fine-tuning and research. The card highlights a "Research-Friendly" motivation: "we released pre-trained models both with and without instruction data, providing the research community with more diverse options". The recorded contextWindow applies this dataset’s documented mapping of the card’s stated "512K" to a token number, matching the Instruct sibling.

View Model Passport Add to comparison Primary source

Seed-OSS-36B-Base model card | Checked Sep 7, 2026

Official record

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

Website: https://seed.bytedance.com/en/
Release page: https://huggingface.co/ByteDance-Seed
Type: company
Verified: Aug 29, 2026

Releases

Every release recorded for ByteDance Seed, 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 2 releases.

Seed-OSS 36B Base Available
Seed-OSS36B Base Aug 20, 2025 Open-weight
Seed-OSS 36B Instruct Available
Seed-OSS36B Instruct Aug 20, 2025 Open-weight

Primary sources

The organization-level sources behind the summary above.

official docsByteDance Seed
ByteDance Seed | Checked Aug 29, 2026
model cardByteDance-Seed/Seed-OSS-36B-Instruct model card
ByteDance Seed | Checked Sep 11, 2026