Frontier models are failing one in three production attempts — and getting harder to audit

AI agents are now embedded in real enterprise workflows, and they're still failing roughly one in three attempts on structured benchmarks. That gap between capability and reliability is the defining operational challenge for IT leaders in 2026, according to Stanford HAI's ninth annual AI Index report. This uneven, unpredictable performance is what the AI Index calls the "jagged frontier," a term c
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VentureBeat
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