In 2026, "accuracy" is just marketing noise. Hallucination rates shift wildly...

https://lukasnpyy234.cavandoragh.org/why-did-grok-3-score-94-citation-errors-on-news-queries

In 2026, "accuracy" is just marketing noise. Hallucination rates shift wildly depending on your chosen benchmark. For example, the HalluHard suite captures a 30.2% failure rate in complex reasoning that simpler tests miss entirely