xAI’s Grok 4.6 just handed the AI benchmark charts a reason to pay attention. Launched in early August 2026, the model scored 1,753 Elo on the GDPval-AA v2 leaderboard, placing third overall and cementing itself as the highest-ranked model from any company not named Anthropic.
That gap from its predecessor is not trivial. Grok 4.5 was sitting in the mid-1500 Elo range before this update, meaning Grok 4.6 added roughly 200 Elo points in a single generational jump.
What GDPval actually measures
OpenAI introduced the GDPval benchmark in September 2025 with a specific goal: stop measuring AI against academic puzzles and start measuring it against the kind of work that actually generates economic value.
The benchmark evaluates models on tasks developed by professionals with an average of 14 years of experience across various industries. The Elo system used here works the same way it does in chess: models compete head-to-head on identical tasks, and ratings shift based on wins and losses.
