PALO ALTO, Calif.–(BUSINESS WIRE)–Aug 11, 2026–

Pathway, an AI lab building a Post-Transformer architecture and models, today published benchmark results for BDH-CQ, a 150-million-parameter reasoning model. BDH-CQ scored 29.5% pass@2 on the public ARC-AGI-1 evaluation set at a computed inference cost of $0.0007 per task. Thanks to a new approach to reasoning, BDH-CQ runs approximately 11 times as cheaply per task as GPT 5.6 Luna (Low), even after accounting for OpenAI’s 80% price cut of 5.6 Luna on July 30th. Luna scores 34.2% against BDH-CQ’s 29.5%, a modest accuracy gain at 11 times the cost.

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