Tier 2 Restricted open-weight
What the publisher claims: open weights
The one-liner: Technically open embedding weights under research-only licences, including a corrected licence mistake.
The six questions
weights downloadable
non-commercial research licences only
standard tooling, vLLM support
model cards and evals; corpus withheld
Limited to moderate.
Public repos accept outside PRs and Jina documents contribution paths, though direction stays corporate.
License
CC-BY-NC 4.0 for v3; Qwen Research License for v4 (research-only, non-commercial; the model card states v4 was first published under CC-BY-NC 4.0 by mistake and corrected to the Qwen Research License because it derives from Qwen2.5-VL-3B) — license source ↗
- non-commercial use only
- commercial use requires a separate licence request to Alibaba Cloud under the Qwen Research License
- attribution and Notice-file obligations on redistribution
What is actually released
- weights (v3 text and v4 multimodal)
- adapters
- custom modeling code
- model cards
- technical reports
- MTEB and ViDoRe results
Why it matters
Shows a licence error being corrected in public, and the practical consequence of inheriting a base model licence.
Sources
- https://huggingface.co/api/models/jinaai/jina-embeddings-v3
- https://huggingface.co/jinaai/jina-embeddings-v4/raw/main/README.md
Derived from the openness dataset behind But Is It Open? — snapshot 2026-11-07 ↗. Scores are qualitative readings of the cited evidence, not verdicts; tier measures openness, not intelligence.