Solar Pro 2 | OpenRouter | Page 1

sleek wedge Jul 29, 2025, 1:32 PM

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https://www.upstage.ai/blog/en/solar-pro-2-launch
https://www.upstage.ai/blog/en/solar-pro-2-preview-small-powerful-now-with-reasoning

Solar Pro 2: Fluent. Reasoning. Frontier.

Solar Pro 2—31B LLM with frontier-level reasoning, tool use, and multilingual strength—meet Solar Pro 2.

Solar Pro 2 Preview: Small. Powerful. Now with reasoning.

Solar Pro 2 Preview is here: a compact 31B model that rivals 70B giants, now with hybrid reasoning mode. Still small but smarter, and free to use until July 15 on the Upstage Console.

wraith bobcat Jul 29, 2025, 1:51 PM

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its benched against old models ?

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ok this is kinda insane actually

686ea3dcc3314308ea148884_solar_pro2_table_frontiers_en.jpg

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30B btw

gusty fable Jul 29, 2025, 2:38 PM

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Non-reasoning benchmarks interestinglt, the reasoning version looks slightly worse than Qwen3 32B reasoning

red finch Jul 29, 2025, 4:13 PM

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is this yapping a lot ?

keen mauve Jul 29, 2025, 6:32 PM

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this model reasons a lot with reasoning effort "high", from 62k tokens (reasoning off) -> 813k tokens (output total)
(worst case)

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in coding it only went from 38k -> 121k with a reasonable improvement

#Solar Pro 2