Upstage @upstageai

Thank you @thenewstack for the thoughtful deep dive on Solar Pro 4. Like they said — Consistent across turns, strong on long-context, ~90% cheaper per workflow. The workhorse for real work.

The New Stack @thenewstack

10 hours ago

Upstage AI's Solar Pro 4 targets reliable AI agents for enterprise workflows, promising 90% lower costs than frontier models for document tasks. thenewstack.io/upstage-solar-…

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🎉 We just hit #10 on the @OpenRouter LLM Leaderboard (Closed models, Today) Solar Pro 4 is now sitting alongside the biggest names in the world — and that’s entirely thanks to you. To everyone who’s been building with Solar Pro 4: thank you, sincerely. Every token you ran got us here. @NousResearch We’re still in our promo period, so keep it coming — let’s climb even higher together. 🚀🌞 #SolarPro4 #Upstage #OpenRouter

Solar Pro 4 is #2 on @OpenRouter's value leaderboard right now. That board scores capability per dollar: @ArtificialAnlys benchmarks over the posted input/output rate. Only models in the top half of the benchmarks qualify at all — Solar Pro 4 lands in the top third on agentic (67th percentile), and the top 40% on intelligence and coding (63, 64). 524K context. And it's #2 because ✨we're running 90% off✨ through Sept 10. $0.03 in, $0.12 out per 1M. Which makes this the cheap month to find out whether it holds up on your workload. Go break it 👉 openrouter.ai/upstage/solar-… #SolarPro4 #Upstage #OpenRouter

@witcheer from @NousResearch walks through what Hermes Agent is and how it works. Then Taeho (@TaehoLe24246520) and @KaseyRoh from @upstageai builds a run of demos with it, from a 3D game on up, powered by Solar Pro 4. A taste of Solar’s capabilities, live, inside an open-source agent. Your turn — see what you can make! Go watch 📷 go.upstage.ai/wsr_nous #SolarPro4 #HermesAgent #Upstage #AIAgents

Thanks @MervinPraison! Thanks for the clear guide on using the Hermes agent! It'll be super helpful for newbies. As Mervin said, it's free until August 18, so hurry up and give it a try!

Mervin Praison @MervinPraison

a week ago

Solar Pro 4 is FREE until Aug 18 — and the best way to use it is Hermes Agent Desktop Full beginners setup (step by step), 200k+ GitHub ⭐: Telegram, Discord, Slack, WhatsApp built in Kanban board — drag tasks, agent executes Daily automations at 8am via Cron Auto-creates its

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🌠 Solar Pro 4 is now officially listed on Artificial Analysis. Intelligence Index: 42, up from Solar Pro 3's 14. A 3× gain in one generation. It finishes terminal tasks, keeps its footing across many tool calls, and stays accurate deep into long documents. Try it free on Nous Research’s Hermes Agent through August 18. -> go.upstage.ai/4hLo3l1 Build with it at 90% off on Upstage Console and OpenRouter through September 10. Thanks! @ArtificialAnlys

Artificial Analysis @ArtificialAnlys

a week ago

Korean AI lab Upstage has released Solar Pro 4, scoring 42 on the Artificial Analysis Intelligence Index, a significant increase from Solar Pro 3’s 14 Solar Pro 4 is @upstageai's new proprietary flagship reasoning model, replacing Solar Pro 3 from April 2026. At 42 on the

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Free for one week, exclusively in Nous Portal: Solar Pro 4, the new agentic model from @upstageai, built to complete multi-step tasks across long documents and to recognize when it needs more information rather than inventing it. Try it today at portal.nousresearch.com

Upstage @upstageai

a week ago

Solar Pro 4 is live. Built for one job: production agents that finish the work. ▸ GDPval-AA (real work deliverables): 39 ▸ τ³-Banking (policy retrieval + tool use): 23 ▸ Terminal-Bench 2.1: 57 🪙 $0.30 / $1.20 per 1M tokens · $0.06 cached 90% off on Upstage Console and

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Solar Pro 4 by @upstageai is the first Korean Lab to hit the Arena leaderboards for Agent Arena, Code Arena: WebDev, and Text Arena! Solar Pro 4 debuts in the Agent Arena at #44 on par with models like: MiniMax M2.7 and Nemotron 3 Ultra. Agent Arena uses causal tracing methodology to measure a model's net improvement across real-world, long-horizon agentic workflows. It indicates how much it improves outcomes relative to the average model. Solar Pro 4 has an overall-net improvement score of -12.10%. By signal it landed: - Confirmed Success: -7.3% - Praise vs. Complaint: -23.4% - Steerability: -13.6% - Bash Recovery: -16.5% - Tool Hallucination: +0.3% Congrats to @upstageai for their contribution to the AI ecosystem!

Upstage @upstageai

a week ago

Solar Pro 4 is live. Built for one job: production agents that finish the work. ▸ GDPval-AA (real work deliverables): 39 ▸ τ³-Banking (policy retrieval + tool use): 23 ▸ Terminal-Bench 2.1: 57 🪙 $0.30 / $1.20 per 1M tokens · $0.06 cached 90% off on Upstage Console and

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@superalesha If it’s open weights you’re after, our latest open model — Solar Open 2 — is up on Hugging Face! 🤗 huggingface.co/upstage/Solar-…

Solar Pro 4 is live. Built for one job: production agents that finish the work. ▸ GDPval-AA (real work deliverables): 39 ▸ τ³-Banking (policy retrieval + tool use): 23 ▸ Terminal-Bench 2.1: 57 🪙 $0.30 / $1.20 per 1M tokens · $0.06 cached 90% off on Upstage Console and OpenRouter through Sep 10. How it’s trained to finish jobs → go.upstage.ai/4cy3VPz

@OpenRouter Solar Pro 4, now on Hermes Agent. @NousResearch Free through Aug 18. Hand it a task. It browses, runs code, builds the files. Blog → go.upstage.ai/4cy3VPz Setup → go.upstage.ai/4hLo3l1 Start building with Solar Pro 4 — agents that finish the job.

🎟️ 90% off on Upstage Console and @OpenRouter through Sep 10. $0.30 / $1.20 per 1M tokens · $0.06 cached How it’s trained to finish jobs → go.upstage.ai/4capBBe

Super happy to announce @upstageai' new model, #SolarOpen2. It's a very good model. Please try it out: huggingface.co/upstage/Solar-…

Introducing #UpstageStudio by @upstageai Processing documents is easy in 2026. A Claude Skill pulls fields from an invoice in a minute. Open-source parsers run locally. So why build a document agent platform? Because the second document is a different problem. Three walls everyone hits: 𝗔𝗰𝗰𝘂𝗿𝗮𝗰𝘆 — demos hold at 10 pages, collapse on 300. 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 — 10 docs work, 10,000 crash the pipeline. 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 — “the model said so” doesn’t fly in regulated industries. We know these walls because we’ve spent five years walking into them. Studio runs on OCR and LLMs processing 3M+ pages a day. Every output traceable to its source. SaaS, or private in your AWS/Azure/on-prem with zero data exposure. Bring us your second document: studio.upstage.ai #DocumentAgents #UpstageStudio

#SolarPro3 is now free to try. Stronger reasoning and instruction following — with the same API and a seamless upgrade from Solar Pro 2. Free until Mar 2 🚀 Try it now: upstage.ai/blog/en/solar-…

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