Beating GPT-5.6 Sol on retrieval with 100x cheaper open models
A 4B open-source model post-trained with Castform retrieved search results as accurately as GPT-5.6 Sol, while costing 100x less.
Summary
A new open-source model demonstrates that it can match the search accuracy of GPT-5.6 Sol at a fraction of the cost, highlighting the potential for more affordable AI solutions. This development could reshape how businesses approach AI-powered retrieval systems.
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