Model reference · open weights

OlmoEarth-v1_2-Nano

Embeddings allenai Image embed 1 build Its own licence terms 2k dl/mo

OlmoEarth-v1_2-Nano is an open-weight embedding model from allenai. OlmoEarth-v1_2-Nano (BF16) weighs 17 MB; the smallest configuration that runs it is RTX 3060 12 GB.

  • OlmoEarth-v1_2-Nano is a ViT-Nano foundation model with 1.7M parameters developed by allenai for remote sensing tasks.
  • It is designed to process Sentinel-1, Sentinel-2, and Landsat images or image time series.
  • The model is licensed under the OlmoEarth Artifact License.

Summary of the allenai/OlmoEarth-v1_2-Nano model card, 2026-10-01

What it is

Released byallenai
Released2026-06-24
VRAM17 MB for the weights

What it runs on

Memory and cards for OlmoEarth-v1_2-Nano (BF16)

17 MBweights, file size
1.1 GBruntime overhead
CardRunsMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What allenai says about OlmoEarth-v1_2-Nano

Read the model card

OlmoEarth-v1_2-Nano is a ViT-Nano (1.7M parameters) foundation model for remote sensing tasks over Sentinel-1, Sentinel-2, and Landsat images or image time series.

It was presented in the paper OlmoEarth v1.2: A more efficient family of OlmoEarth models.

Please see our GitHub and paper for more information about OlmoEarth.

  • GitHub: https://github.com/allenai/olmoearth_pretrain
  • Paper: https://allenai.org/papers/olmoearth_v1_2

If you are interested in computing embeddings with OlmoEarth, or fine-tuning OlmoEarth for a downstream task, see our tutorials:

The OlmoEarth model is deployed in the OlmoEarth Platform, a solution that enables any organization to leverage our models and accelerate their mission, without requiring deep AI or engineering expertise. Sign up to get updates and partner access.

This model is licensed under the OlmoEarth Artifact License. It is intended for use in accordance with Ai2's Responsible Use Guidelines.

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

How it works

How embedding models work

Your textsentence / documentEncodermaps meaningVectorlist of numbersAn embedding model turns text into a vector, so similar meanings sit close together, which is the basis of search and RAG.
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