FrontierThe story, in brief
SpaceXAI's Grok 4.6 matches OpenAI's best model and undercuts it on price
Grok 4.6 ties OpenAI's flagship — and does agentic tasks in half the steps at 60% lower cost.
The KeyNews take
Why it matters
xAI's latest model matches frontier capability benchmarks while claiming significant efficiency and cost advantages on agentic workloads, reshaping the competitive hierarchy between OpenAI, Anthropic, and Musk's lab.
The key facts
5 to knowGrok 4.6 scores 61 on Artificial Analysis Intelligence Index, tying GPT-5.6 Sol
Trails only Anthropic's Claude Opus 5 on the benchmark
Completes agentic workflows in ~53 steps vs Claude Opus 5's 103 steps
Priced 60% lower than competing frontier models
Published August 12, 2026
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: xAI's Grok 4.6 scores 61 points on the Artificial Analysis Intelligence Index, tying GPT-5.6 Sol and trailing only Anthropic's Claude Opus 5. On agentic tasks, it completes complex workflows in about 53 steps where Claude Opus 5 needs 103, at a price more than 60 percent lower.