Two Years On: Every Frontier Model Now Reasons Like o1 Did
ArtificialAnlys · x · 2026-09-26
Artificial Analysis marks two years since o1-preview, the first reasoning model; now every frontier model uses reasoning tokens to think before answering. Its Intelligence Index has grown from 4 exam-style benchmarks (MMLU, GPQA, MATH, HumanEval) to 10 evaluations spanning Terminal-Bench 4.0, SciCode and more, covering 15 of 58 model creators. The site also tracks big tech capex trends and released a 2025 year-end State of AI report.
Related event: Two Years After o1-preview, Reasoning Is Standard Across Frontier Models(3 posts)→
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