Stability AIStable LM

Stable LM 2 12B

Stable LM 2 12B is the larger base release in the Stable LM 2 family. It was pretrained on multilingual text and code, with a decoder architecture designed for later task adaptation.

Model design and access

The model uses parallel attention and feed-forward layers, per-head query-key normalization and partial rotary embeddings. Its Arcade100k tokenizer is shared with the smaller family. The published sequence length is 4,096 tokens, despite its larger parameter count.Stable LM 2 12B official model card

Practical use

Practical guidance. The larger base can be useful for adaptation studies with enough local compute. It does not provide a larger document window than the 1.6B model. Plan memory and document handling separately, and compare the value of fine-tuning it with starting from an already instruction-tuned release.

Specifications & access

Stable LM 2 12B specifications
DetailValue and conditions
AccessDownloadable
Model identifiersstablelm-2-12b
Context window4,096 tokens

Published checkpoint sequence length; prompt and generated text share the window.

Stable LM 2 12B official model card
Parameters12,143,605,760.Stable LM 2 12B official model card
Attention32 query heads and 8 key-value heads across 40 layers.Stable LM 2 12B official model card
LicenseStability AI Community License.Stable LM 2 12B official model card

Related models

  • A 1.6B base language model pretrained on multilingual text and code.

    Launch date not confirmedDownloadable
  • Stable LM 2 Chat 12B is an English instruction-tuned model with documented function calling.

    Launch date not confirmedResearch releaseDownloadable