Iris Search Agent: Open Source Context Management Beats Parameter Scaling

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Iris Search Agent: Open Source Context Management Beats Parameter Scaling The Open Source Search Agent Revolution AllSpark Research has released Iris, an open-source search agent that is changing the competitive landscape. Two models are available: Model Total Params Active Params BrowseComp Iris-mini 35B 3B 82.2 Iris-pro 397B 17B 88.6 Both use Mixture-of-Experts architecture with 256K context windows. Context management is the real differentiator. Closed-source products tune both; open source often releases only the model. Iris releases model weights, context management strategy, and data construction method — the complete package.

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