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Model

LFM2.5 Encoder 230M

This encoder needs a suitable task and setup; it is not a ready-made chat assistant. 8GB RAM estimate. Best use: Fine-tuning compact classifiers, routers, token taggers, retrieval systems, and similarity models.

0.2297BTask-specific encoder

Best use

Fine-tuning compact classifiers, routers, token taggers, retrieval systems, and similarity models.

Memory planning

8GB RAM estimate

Expected pace

Depends on your hardware, app, and conversation length

License

LFM Open License v1.0; read the model’s terms before use

Who should use this model?

  • Fine-tuning compact classifiers, routers, token taggers, retrieval systems, and similarity models.

Choose something else when

  • You want a ready-made chat assistant or drop-in retriever without adaptation.

What hardware makes sense?

The download is only part of the memory needed. Leave room for the app, the input it processes, and other open programs. Document-search memory also depends on input length, batch size, and the document index; a chat-memory estimate does not confirm that workload.

CPU only
A possible starting point with a compressed model and short conversation; check the exact file size.
8GB system memory
A possible starting point with a compressed model and short conversation; check the exact file size.
16GB system memory
A possible starting point with a compressed model and short conversation; check the exact file size.
32GB system memory
A possible starting point with a compressed model and short conversation; check the exact file size.
8GB GPU memory
Not required
12GB GPU memory
Not required
24GB GPU memory
Not required
Apple unified memory
A possible starting point with a compressed model and short conversation; check the exact file size.

Model facts that change the decision

Parameters
0.2297B
Input
Text
Published context limit
8,192 tokens
Model format
safetensors · Transformers
Languages
English · German · Spanish · French · Italian · Dutch · Polish · Portuguese

Adapting an encoder

This encoder is intended for tasks such as classification or retrieval after suitable adaptation. Follow its model card rather than assuming that a chat app or an embedding app can use it unchanged.

First setup

llama.cpp

The official card uses custom Transformers code; do not assume llama.cpp support.

Conditions that change the answer

  • This is a masked-language-model encoder, not a generative chat model.
  • The official card requires trust_remote_code=True; review remote code before use.
  • The custom license includes a commercial-use revenue threshold.

Read the controlling license text →