Upstage

Building the future of work with AI

Upstage boosts work efficiency with industry-leading document processing engines and large-language models (LLMs).

[Upstage @upstageai]

Thank you all for using Solar Pro 4 — you’ve been running it SO much that we’re extending the free promo by another week! @NousResearch

And to say thank you, we’ve got a giveaway. We’ll send this special goodie kit to (random winner):
🎁👕👖 3 people who RT *this post*, 7 people who DM us a screenshot of Solar Pro 4 in action.
Winners will be contacted individually on Sept 7. (Fingers crossed you’re somewhere we can ship to!) Make sure you follow us so we can DM you if you win!

Thank you again to everyone building with us — now go tell the world about Solar Pro 4!
#SolarPro4 #Upstage

[Nous Research @NousResearch]

Solar Pro 4 is free exclusively through Nous Portal for another week, in partnership with @upstageai

Try it today at https://t.co/KCXV2EtbOa

[Upstage @upstageai]

Using @cline already?
Then you’ve gotta try Solar Pro 4.

And if you haven’t tried Cline yet—
this is your sign. Cline is an open coding agent that doesn’t just autocomplete your code. It reads your repo, edits files, runs commands, and actually gets the work done. Now pair it with Solar Pro 4.

Try Cline. Try Solar Pro 4.
See what you can build.

Free in Cline through Sept 15. 🚀
Check it out here 👉 https://t.co/Q4fwpYKUTR

[Upstage @upstageai]

Solar Pro 4 hit #3 by usage on OpenRouter (Closed models, today). ☀️

Sitting in the top 3 next to the biggest labs in the world . Every request that got us here came from you.

Thank you for building with us. Keep 'em coming.
👉 https://t.co/aFuERk7pmC

#SolarPro4 #Upstage #OpenRouter

[Upstage @upstageai]

Autocomplete just finishes your line.
@cline finishes the issue. It’s an open coding agent that lives in your editor and actually does the work: reads your repo, edits files, runs commands, ships the task.

An agent like that needs a model that won’t lose the thread halfway through — consistent tool calls, instructions that hold across turns. Solar Pro 4 was built for exactly this.

Now free in Cline through Sept 15.

Give it your messiest repo. Check it out here 👉 https://t.co/Q4fwpYKUTR Or just type this in your terminal: npm i -g cline

[Cline @cline]

Solar Pro 4 by South Korean lab @upstageai is free in Cline.

It’s a 512k context model that excels at agentic coding and handling long tabular documents like invoices or tech specs with hundreds of line items.

Try now:
npm i -g cline
/model
Choose Solar Pro 4 under free models.

[Upstage @upstageai]

Solar Pro 4 is free and unlimited on https://t.co/wSHsWOw97q this weekend.

Our flagship model landed on Freebuff last week — this weekend it's the only model with no hourly cap.

Give it work and let us know how it does.

[James Grugett @jahooma]

We made Korea’s flagship model, Solar Pro 4, 100% free and unlimited this weekend.

This is insane value!

Try it now in our coding agent: https://t.co/uCHw0PuzKO

[Upstage @upstageai]

Good news for everyone who’s been building on Solar Pro 4:✨ it stays free✨ — now through September 15, in Nous Portal.
Usage hasn’t slowed down, so we didn’t want the free window to either. Consider it a thank-you for putting in the work.
Haven’t tried it yet? Here’s your window 👉https://t.co/V5ZnvQwIBc
#SolarPro4 #Upstage @NousResearch

[Upstage @upstageai]

Solar Pro 4's usage keeps climbing — and for the first time, it’s showing up on OpenRouter’s all-models / today list, not just the closed-model one. That’s a genuinely meaningful milestone for us.
None of that happened without you. Every token came from someone building something real.

Don't tell me you still haven't tried it? 👀👉https://t.co/V5ZnvQwIBc
Curious what you’re building with it — drop it in the replies. 💌
#SolarPro4 #Upstage #HermesAgent

[Upstage @upstageai]

We just crossed 100B tokens in a single day on @OpenRouter 📷
Solar Pro 4 is holding a top-10 spot among closed models, right next to GPT-5.6, Gemini, and Claude.
Every one of those tokens came from you. Thank you for building with us — and the free promo is still running, so keep ’em coming. 🌞
#SolarPro4 #Upstage #OpenRouter

[Artificial Analysis @ArtificialAnlys]

South Korea’s Sovereign AI initiative has entered its next stage 🇰🇷 and Artificial Analysis was proud to have supported the Korean Government (NIPA) as an official global evaluation partner, independently benchmarking all four participating models

Launched in 2025 by Korea’s Ministry of Science and ICT (MSIT) and National IT Industry Promotion Agency (NIPA), the Sovereign AI Foundation Model project is a government-backed competition to develop globally competitive Korean frontier AI models, with substantial GPU, data, and talent support for participating teams.

The competition began with 5 teams: LG AI Research, SK Telecom, Upstage, Naver Cloud, and NC AI. Following the first evaluation, LG, SKT, and Upstage advanced, with Motif later joining through an additional selection round.

Artificial Analysis collaborated with NIPA as an official evaluation partner, with the Artificial Analysis Intelligence Index comprising the largest individual component of the judging criteria (25%), helping strengthen the credibility and fairness of the assessment and benchmark participating teams against the global AI frontier.

This month’s Round 2 evaluation narrowed the field from four teams to three:

➤ Upstage | Solar Open 250B (Intelligence Index score: 37)
➤ SK Telecom | A.X K2 (Intelligence Index score: 35)
➤ LG AI Research | K-EXAONE 2.0 (Intelligence Index score: 31)

Each advancing team is expected to receive access to roughly 1,000 NVIDIA B200 GPUs for six months, representing approximately ₩40B of support per team (₩120B total). The next round of the competition is expected in early 2027, when the field is currently planned to narrow to two teams.

We’re excited to continue supporting Korea’s rapidly developing AI ecosystem and its push toward the global frontier.

Link to announcement from Korean Government: https://t.co/2W6MWtu6WO

[Upstage @upstageai]

Lisa Su also committed to supporting the Korean AI ecosystem, including AMD Instinct GPU supply.

[Upstage @upstageai]

Upstage CEO Sung Kim sat down with Lisa Su, Chair and CEO of AMD, for the second time.
Solar Pro 4 crossed 80 billion tokens per day within three days of listing on OpenRouter, and that traffic runs in production on AMD Instinct GPUs. Engineers from both companies spent two months optimizing inference throughput together and landed a 25% gain over baseline.

📷 Watch the full conversation
https://t.co/0Xc4fXsxHi

[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]

Upstage AI's Solar Pro 4 targets reliable AI agents for enterprise workflows, promising 90% lower costs than frontier models for document tasks. https://t.co/LWdyTA14vH

[Upstage @upstageai]

🎉 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

[Upstage @upstageai]

🌞One more week.
Solar Pro 4 stays free on Hermes Agent through 🎉Aug 25. @NousResearch

Thank you for last week. Please use it even more this week and tell us about it — that's the whole ask.

It runs steadier than it did last week. Worth another week of your time. If you hit a problem, or you want your rate limit raised (we can only raise limits on Upstage Console keys), come find us on our Discord.

Bring the prompt, the trace, whatever you've got.
👉 Upstage Discord: https://t.co/R4MDVRvOGf

#SolarPro4 #HermesAgent #NousResearch #LLM

[Upstage @upstageai]

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 👉 https://t.co/qZ2U7cxi9Q

#SolarPro4 #Upstage #OpenRouter

[Upstage @upstageai]

@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 📷 https://t.co/evVNwakNBV

#SolarPro4 #HermesAgent #Upstage #AIAgents