Hallucinations are still a headache in 2026. Rates vary wildly by benchmark, so...

https://holdenlvxt779.theburnward.com/the-death-of-the-hallucination-rate-understanding-delusional-spiraling-in-agentic-workflows

Hallucinations are still a headache in 2026. Rates vary wildly by benchmark, so don't trust vendor claims blindly. With the HalluHard test hitting a 30.2% failure rate even with web search, you need real data. We show how to vet models for your production