Specification

Release date: 16 Feb 2023
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Openness: open-weights
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
License: apache-2.0
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Architecture: BertModel
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Languages: en
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Hugging Face repo: allenai/specter2_base
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Pipeline tag: feature-extraction
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Model card: huggingface.co/allenai/specter2_base
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Downloads: 1,063,982
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 54 min agomedium
Likes: 48
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 54 min agomedium
Datasets: allenai/scirepeval
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Gated: No
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Hf inference providers: hf-inference
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Last modified: 2024-12-04T07:45:10+00:00
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Library name: transformers
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Downloads all time: 10,824,831
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 54 min agomedium
Model type: bert
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium
Tags: transformers, pytorch, bert, feature-extraction, en, text-embeddings-inference
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

18

Source tiers

T218

Freshest observation

54 min ago

Conflicts

None

Modalities

Modalities unavailable.

Capabilities

Tool calling
Unavailable
Structured output
Unavailable
Reasoning
Unavailable
Vision
Unavailable
Audio
Unavailable
Fine-tuning available
Unavailable

No capability flags have been observed from a source yet — we do not infer them.

Languages: en
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 57 min agomedium

No benchmark results recorded

Results appear when a tier 1–3 source publishes them; we never copy scores without a source.

Current prices

No current prices recorded

Prices appear when a provider publishes a public pricing page we crawl.

Price history

No hardware estimate available

Estimates need a parameter count; this model has none recorded from a source.

No lineage recorded

Lineage comes from explicit `derived_from`, `fine_tuned_from`, `distilled_from` and `quantized_from` relations stated by sources.

Papers 0

No papers linked yet.

Repositories 0

No repositories linked yet.

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history · Pipeline tag

1 claims · 1 propertiesShow all properties

Pipeline tagpipeline_tag1

Claim history for Pipeline tag
Value	Valid from → to	Status	Source	Confidence	Extractor
feature-extraction	11 Sept 2026 21:10 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
New modelModelspecter2_baseAllen Institute for AI
New model: specter2_base (Allen Institute for AI)
huggingface
huggingface.co

Full timeline →

Source documents
Source	Document	Type	Tier	Last observed	Snapshots
Hugging Face Hub (public pages, model cards, papers)	huggingface.co/allenai/specter2_base	model_page	T2· Quality secondary	54 min ago	2
Hugging Face Hub (public pages, model cards, papers)	huggingface.co/models?author=allenai&p=0&sort=downloads	listing	T2· Quality secondary	57 min ago	2

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.