media r/LocalLLaMA · 1h ago · open_models

Upstage releases Solar Open 2 models with performance on par with DeepSeek V4 Flash

from English

Upstage has released the Solar Open 2 family of open-weight language models, including a 250B-A15B variant and a 100B-A12B variant. The release highlights competitive benchmark scores against proprietary models like DeepSeek-V4-Flash.

Solar Open 2 (250B-A15B) achieves 86.2 on MMLU-Pro, 86.3 on GPQA-Diamond, and 92.4 on LiveCodeBench v6.
The smaller Solar Open 100B (102B-A12B) model scores 80.4 on MMLU-Pro and 56.5 on LiveCodeBench v6.
On agent benchmarks, the 250B model reaches 70.4 on SWE-Bench Verified and 16.6 on APEX-Agents.
Performance is compared directly against DeepSeek-V4-Flash, Command A+, Mistral Medium 3.5, and MiMo-V2.5 across knowledge, reasoning, and agent tasks.

The models are available for download via Hugging Face.

Importance 2/3 r/LocalLLaMA Upstage Benchmark results Open weights

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