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Map / Core AI / Foundation Models / Solar

Solar

by Upstage

Upstage's model family, from open-weights Solar Open to the agentic Solar Pro

CuratedLanguage Models

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What it does

Solar is Upstage's family of language models. Solar Pro 4 is an agentic model for multi-step work and Solar Mini 4 a compact model with 3B active parameters for high-volume tasks, both served through Upstage's API. Solar Open 100B and Solar Open2 250B are released with open weights on Hugging Face.

Models and versions

The models in Solar and when each version came out. Each dot is a release.

2023202420252026TodayProSolar Pro, 4 Dec 20241Solar Pro 2, 10 Jul 20252Solar Pro 3, 26 Jan 20263Solar Pro 4, 6 Aug 20264MiniSolar Mini, 25 Jan 20241Solar Mini 4, 22 Sep 20264OpenSolar Open 100B, 31 Dec 20251Solar Open 2, 22 Jul 2026210.7BSOLAR 10.7B (SOLAR-10.7B-v1.0), 14 Dec 20231.0DecideSolar Decide, 22 Sep 2026, preview1

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Alternatives on the map

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Foundation Models, starting with the other Language Models.

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