Stemma Machinarum

Model · gpt-neo-125m

gpt-neo-125m

Developer: EleutherAI
Availability: available · checked 2026-09-24 · source

Raw record: /data/models/gpt-neo-125m.json

Fields

id
gpt-neo-125m
identifiers
huggingface
EleutherAI/gpt-neo-125m
developer
EleutherAI
release_date
2022-03-02partial · source
note:  HF repo creation date; may predate or postdate public release.
weights_status
open
availability
available · checked 2026-09-24 · source
license
mitpartial · source
note:  From HF card metadata (uploader-declared); confirm against the license text.
architecture
family
decoder_only
note
family read from config 'architectures': ['GPTNeoForCausalLM'].
n_layers
12recorded · source
hidden_size
768recorded · source
n_heads
12recorded · source
vocab_size
50257recorded · source
context_length
2048recorded · source
positional_encoding
learned_absoluterecorded · source
note:  Code: wpe = nn.Embedding(max_position_embeddings, ...), same as gpt-neo-2-7b.
activation
GELU (tanh approximation, config 'gelu_new')recorded · source
training_data
The Pile, an 825 GiB curated English text corpus (EleutherAI). Same training recipe as the 2.7B model.recorded · source
techniques
primary_sources
https://huggingface.co/EleutherAI/gpt-neo-125m
https://huggingface.co/EleutherAI/gpt-neo-125m/raw/21def0189f5705e2521767faed922f1f15e7d7db/config.json
record_history
date:2026-09-24 · change:ingested as candidate from HF (EleutherAI/gpt-neo-125m@21def0189f5705e2521767faed922f1f15e7d7db) · by:ingest_hf.py ·
date:2026-09-24 · change:preparer: developer, positional encoding, activation set; trained_on accepted · by:claude (preparer, Sonnet 5) ·
date:2026-09-24 · change:preparer cleanup: removed 2 stale flag(s), filled training_data · by:claude (preparer, Sonnet 5) ·
date:2026-09-24 · change:reviewed and promoted from staging (1 edge(s) accepted) · by:Wilson Pruitt ·

Parents

Training data

Children

No edges recorded.

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