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Solar Pro 4 · Upstage — forck
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Upstage
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Solar Pro 4
Announcements
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Upstage models
Mini 4
Pro 4
Pro 3
So
far
11 Aug
announced
·
2026
2
posts about it
·
First-party
0
outlets reported
·
On its posts
So
far
11 Aug
announced
·
2026
2
posts about it
·
First-party
0
outlets reported
·
On its posts
Upstage
·
All models
Upstage models
Solar Mini 4
23 Sep
Solar Pro 3
27 Jan
Launch
Upstage
· 11 Aug
Solar Pro 4: The Agentic Model That Finishes the Job
Solar Pro 4 targets complex agent workloads with 512K context and 128K output tokens.
New model
Everything else, by date
Upstage AI Unveils Solar Pro 4, Scoring 42 on Artificial Analysis Index to Rank Among Global Frontier Models
New model
20 Aug
About the model
Lab
Upstage
Context window
512K context with up to 128K output tokens
Price
To mark the launch, Solar Pro 4 is 90% off on Upstage Console and OpenRouter through September 10.
Released
6 August 2026, per models.dev
OpenRouter
Listed 10 August 2026
upstage/solar-pro4
About the model
Lab
Upstage
Context window
512K context with up to 128K output tokens
Price
To mark the launch, Solar Pro 4 is 90% off on Upstage Console and OpenRouter through September 10.
Released
6 August 2026, per models.dev
OpenRouter
Listed 10 August 2026
upstage/solar-pro4
Solar Pro 4