Claim · 2026-10-13 · publication · Stated in source · Supported

The StepFun Model License 1.0 deems a model trained to a material extent on outputs of the licensed model to reproduce or contain a substantial part of it, bringing such a model within its definition of a Derivative Work.

One recorded claim. The claim panel gives its qualification, the source passages with their place in each source, and how it was checked.

What it connects

StepFun Model License 1.0 → states provision → A model trained to a material extent on the model's outputs counts as a Derivative Work

Where it appears

No collection page holds this claim. It is listed with its records in the explorer.

Claim and evidence

StepFun Model License 1.0states provision ↓A model trained to a material extent on the model's outputs counts as a Derivative Work

Machine-checked, not reviewed by an editorStated in sourceSupported

Supporting evidence: primary · 1 source

Provision: Statement · provision ID stepfun-licence-outputs
Date: 2026-10-13 · publication Records dated 2026 →

Scope and limitsWhat the licence text states (Section 1, definitions); how "material extent" is assessed is not stated in the text, and enforcement is not recorded.

The evidence 01

primary sourceSupports the claim

Step-5-Preview LICENSE.txt (StepFun Model License 1.0)

StepFun (stepfun-ai, Hugging Face) · 2026-10-13

Cite the original source

Cite the original document, not Selekoa. Check these details against it.

Source excerpt

“A model trained to a material extent on outputs of the Model is deemed to reproduce or contain a substantial part of the Model.”

Location in source Section 1, definition of "Derivative Work"

How it was read Retrieved directly from the publisher

Machine-checked · 2026-10-31

Source details and check notes

Authors: StepFun
Version: Dated document, retrieved on 2026-10-29 (SHA-256 01aa781a1a68a9007cb01dadf93ead44a31ee0dcd49e13c854c4129b4a894b83) directly from the publisher. Version: f3112587a3eb4b2144b93e95df52b7eb8c78bf7d. LICENSE.txt at the commit of 13 October 2026 ("Upload 2 files"), which added LICENSE.txt and LICENSE-CN.txt; the file at the commit of 15 October 2026 is byte-identical. The Chinese LICENSE-CN.txt was retrieved but not quoted.
Canonical address: Open the canonical source ↗
Accessed: 2026-10-29
Language: English (en)
Attribution: StepFun, “Step-5-Preview LICENSE.txt (StepFun Model License 1.0)”, 2026-10-13.
Reuse: No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution.
Check notes: Candidate pack passage, Chinese frontier-AI institutions, third collection (research/china-labs-3). The quotation (24 words) matched the text retrieved for the candidate pack on 2026-10-29 and again in a fresh retrieval the same day, read directly from the publisher. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-31, item K119) re-read the record’s sources directly and found full support. No human editorial review.

Status and meaning

Editorial status. Not reviewed by an editor. An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.

Relation. An exact framework edition, or another document with an exact expression, states one provision: a capability threshold or risk level and its trigger, a required safeguard or action, a decision authority (who decides, recommends, can overrule or is informed), a stated exception, or another statement of its content, such as a licence term or a prospectus statement. The passage records what the document says, not implementation, compliance or effectiveness. Provisions with the same key align across editions of one family.

Date. Provision as stated in LICENSE.txt at the cited commit.

Record ID c3-stepfun-licence-outputs