ModelRadar
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What shipped in AI.

Releases from frontier labs, major companies and research institutes — grouped by model, deduplicated across HuggingFace, OpenRouter and official blogs.

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Last week1 model

Solar Mini 4

Upstage🇰🇷Major lab

TextReasoningAPI

Solar 4 is a model family by Upstage. The Pro variant supports a context window of 512K tokens and is available via OpenRouter under the ID upstage/solar-pro4.

⧉ 524K$0.05 / $0.2OR

Week of August 10, 20261 model

Solar Pro 4

Upstage🇰🇷Major lab

TextReasoningAPI

Solar 4 is a model family by Upstage. The Pro variant supports a context window of 512K tokens and is available via OpenRouter under the ID upstage/solar-pro4.

⧉ 524K$0.09 / $0.36OR

Week of July 20, 20261 model

Solar-Open2

Upstage🇰🇷Major lab

Textopen

Solar-Open2 is a 250 billion parameter large language model designed for agentic workflows, such as office productivity and coding. It utilizes a Hybrid-Attention Mixture-of-Experts architecture, allowing efficient inference even with long context lengths of up to 1 million tokens.

1 variant250B