# Ai2 — OlmoEarth v1.3: State-of-the-art embeddings for the whole planet

- Company: Ai2 (allenai.org)
- Announced: 2026-10-22
- Category: new-model
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://allenai.org/blog/olmoearth-v1-3
- Record: https://forck.live/items/26638-olmoearth-v1-3-state-of-the-art-embeddings-for-the-whole-planet
- Subject: Olmo / Molmo / Asta
- Open weights: yes
- Models affected: OlmoEarth v1.3, OlmoEarth v1.2, Tessera v2, AlphaEarth Foundations

Ai2 is releasing OlmoEarth v1.3, a satellite embedding model it says produces one 128-dimensional vector for every 10-meter pixel on Earth, and sharing annual embeddings for the whole planet. The post says users previously had to fine-tune in OlmoEarth Studio, which needs GPU access and imagery storage, while embeddings compress satellite data into features that can be reused cheaply. Ai2 evaluated the embeddings against AlphaEarth Foundations and Tessera v2 across 27 evaluations spanning six continents; it says the 128-dimensional version scores highest on 20 of 27 and the 64-dimensional version, at half the size, leads on 18. Ai2 says OlmoEarth v1.3 was its cheapest model to train, taking 53% of the computing time of v1.2 and 18% of v1, with 50% and 22% of the carbon emissions. Precomputed embeddings sit on Source Cooperative, and the OlmoEarth Embeddings Explorer lets users pan a false-color map, flip between years, find similar places, train a small classifier and export a GeoTIFF without an account. The archive holds 10-meter-resolution embeddings at roughly 150 TB per year; at launch 2025, 2024 and 2023 are global, and 2017 to 2022 cover select countries.

## Evidence

Verbatim from https://allenai.org/blog/olmoearth-v1-3:

> OlmoEarth v1.3 reads a year of radar (Sentinel-1) and multispectral (Sentinel-2 and Landsat) satellite time series and produces one 128-dimensional vector for every 10-meter pixel on Earth; the first 64 dimensions also work on their own as a smaller embedding.

## Follow-ups

- SiliconANGLE (reported, 22 Oct): Ai2 releases OlmoEarth v1.3 state-of-the-art AI-ready satellite embeddings for the whole planet — https://forck.live/items/26611-ai2-releases-olmoearth-v1-3-state-of-the-art-ai-ready-satellite-embeddings-for

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Record: https://forck.live/items/26638-olmoearth-v1-3-state-of-the-art-embeddings-for-the-whole-planet
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