Claim · 2026-09-20 · publication · Stated in source · Supported

The initial commit of StepFun's Step-5-Preview Hugging Face repository is dated 20 September 2026; at that commit its model card held only a metadata header naming the licence apache-2.0.

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 / 阶跃星辰 → published → Step-5-Preview model card

Where it appears

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

Claim and evidence

StepFun / 阶跃星辰published ↓Step-5-Preview model card

Machine-checked, not reviewed by an editorStated in sourceSupported

Supporting evidence: primary · 1 source

Date: 2026-09-20 · publication Records dated 2026 →

Scope and limitsA licence tag in card metadata is not a licence text; the repository held no LICENSE file at this commit. The tag was later replaced (see the record on the StepFun Model License 1.0). Whether the repository was publicly visible on 20 September 2026 is not known.

The evidence 01

primary sourceSupports the claim

Step-5-Preview model card (README.md), initial upload

StepFun (stepfun-ai, Hugging Face) · 2026-09-20

Cite the original source

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

Paraphrase

The README holds only a metadata header with one field, license, set to apache-2.0.

Location in source README, metadata header (entire file)

How it was read Retrieved directly from the publisher

Machine-checked · 2026-10-31

Source details and check notes

Authors: StepFun
Version: Dated page, retrieved on 2026-10-29 (SHA-256 98b45ea81164d1e1a1dd82255207053b15cd6c69d922a1c5cf3387ce604d4b74) directly from the publisher. Version: 43fa7aabe7c2e503bdee2c99a64954d17ab069da. README at the commit of 20 September 2026 ("Upload 10 files"); at this commit the README holds only a metadata header.
Canonical address: Open the canonical source ↗
Accessed: 2026-10-29
Language: English (en)
Attribution: StepFun, “Step-5-Preview model card (README.md), initial upload”, 2026-09-20.
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 candidate pack’s quotation of this passage matched the text retrieved for the candidate pack on 2026-10-29, read directly from the publisher; the fresh retrieval returned a page the tool treats as a block page, byte-identical to the first copy. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. The paraphrase is Selekoa’s. The candidate pack quoted this passage; the README of 20 September 2026 is a 28-byte metadata header, so quoting its one line would reproduce the whole document, and at admission it became Selekoa’s paraphrase (Admission fix). 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. Publication of a specific document or version. Publication of a policy is not evidence of implementation.

Date. Date of the cited commit (the repository's initial commit and the upload of model files are of the same day).

Record ID c3-stepfun-step5-card-initial