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Upstage: AI models, benchmarks & research

Korean AI company building Solar language models and document AI for agentic enterprise workloads.

Proprietary
#9long context
Model
Solar Mini 4New
Solar Pro 4
At a glance

Upstagemodels, benchmarks & research

Key facts about Upstage's portfolio of 2 AI models — sourced from public benchmarks, provider APIs, and model releases.

Models
2 models across 0 families
Portfolio
2 language models
Licensing
0 open-weight, 2 proprietary
Benchmarks
Evaluated on 14 benchmarks
Cheapest model
Solar Mini 4 at $0.10 per 1M input tokens
Active since
Shipping models since August 2026, latest release September 2026

FAQ

Common questions about Upstage.

What is Upstage?

Upstage is an AI research organization that develops large language models and other AI systems. They have released 2 models across 0 model families.

How many AI models has Upstage released?

Upstage has released 2 AI models tracked on LLM Stats. See the Models tab for the full catalog with technical specifications, benchmark scores, and pricing.

How do Upstage's models perform on benchmarks?

Upstage's models have been evaluated on 14 benchmarks. Their top-performing model is Solar Pro 4 on AIME 2026 with a score of 1.0. See the Benchmarks tab for the full breakdown.

What does it cost to use Upstage's models?

Upstage's most affordable model is Solar Mini 4 with input pricing from $0.10 per 1M tokens via commercial API providers. 2 of their models have public pricing. See the Pricing tab for the full comparison.

When did Upstage start releasing AI models?

Upstage has been releasing AI models since August 2026. Their latest release was in September 2026. See the Timeline tab for the full release history.

How can I use Upstage's models?

Visit https://www.upstage.ai for official documentation and API access. Many of Upstage's models are also available through third-party API providers — check the Pricing tab to compare pricing across providers.