Liquid AI releases d1-ultra, leading the Artificial Analysis Decision Index v1.0

What happened

Liquid AI has released d1-ultra, which Artificial Analysis reports leads its Decision Index v1.0 with a score of 65. On AA-Omniscience-Decision, its non-hallucination rate rose to 85% from d1’s 2%, while accuracy fell to 32% from 41%. This non-hallucination metric measures how often the model says it does not know among questions it does not answer correctly. d1-ultra takes 92 ms per task and costs $0.042 per 1M input tokens, billed only on input tokens.

The story so far

Liquid AI has released d1-ultra, which Artificial Analysis ranks first on its Decision Index v1.0 with a score of 65. On AA-Omniscience-Decision, Artificial Analysis reports that its non-hallucination rate increased to 85%, compared with d1’s 2%, while accuracy fell to 32% from 41%. The non-hallucination metric measures how often a model says it does not know among questions it does not answer correctly; it does not measure overall accuracy. Artificial Analysis reports that d1-ultra takes 92 ms per task and costs $0.042 per 1M input tokens, with billing based only on input tokens.

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