Back to upstage
upstage /

SO
Solar-Open2-250B

Open WeightsChat & ReasoningtextUpdated July 22, 2026

Solar-Open2-250B

Model Overview

Solar-Open2-250B is a 250.3B-parameter Mixture-of-Experts text generation model developed by upstage. Built on the SolarOpen2ForCausalLM architecture. Supports en, ko, ja. Released on 2026-07-22.


📊 Quick Specs

Specification Table
SpecificationValue
Parameters250.3B
ArchitectureSolarOpen2ForCausalLM
Tasktext generation
Modalitytext
LicenseOTHER
Frameworktransformers
MoEYes
Languagesen, ko, ja

✨ Key Features

  • 250.3B parameters with sparse MoE architecture for efficient inference
  • Built on SolarOpen2ForCausalLM architecture (transformers)
  • Primary task: text generation (text modality)
  • Language support: en, ko, ja
  • Open-weights under OTHER license — self-hostable and fine-tunable

📈 Community Adoption

  • 543 likes on Hugging Face
  • 1,106 downloads on Hugging Face

🔗 Resources


📜 License & Access

OTHER — Open-weights model available for download, fine-tuning, and self-hosted deployment.

Key Features

250.3B parameters with sparse MoE architecture for efficient inference

Feature 01

Built on SolarOpen2ForCausalLM architecture (transformers)

Feature 02

Primary task: text generation (text modality)

Feature 03

Language support: en, ko, ja

Feature 04

Open-weights under OTHER license — self-hostable and fine-tunable

Feature 05

You might also want to compare

Verified Sources

Tags

open-weightstrendinghuggingfacemoetransformerstext-generation

Model Specs

open-weights

Parameters

250.3B

Context Window

unknown

License

OTHER

Deployment

self-hostable

Resources & Links

Curator Notes

Auto-ingested from HuggingFace Trending on 2026-07-25. Architecture: SolarOpen2ForCausalLM. Params: 250.3B. License: OTHER.

Compare Specs

Compare parameters, context windows, modalities, and benchmark scores of this model side-by-side with others.

Compare Model