- Grok-4.20 Expert Mode and OpenAI GPT 5.4 Pro (Vision) tie for the top spot in TrackingAI’s April 2026 Mensa Norway benchmark, each scoring 145.
- The top tier is getting crowded, with several leading models now separated by only a few points.
- Scores have risen sharply from 2025, highlighting how quickly frontier AI reasoning has improved on visual pattern-recognition tests.
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