Two Years After o1, Reasoning Tokens Are Table Stakes for All Frontier Models
CurieuxExplorer · x · 2026-09-26
Artificial Analysis marks two years since o1-preview, the first reasoning model that made models pause and think before answering—now standard across all frontier models.
- v1 of its Intelligence Index used just four single-turn exam-style evals: MMLU, GPQA, MATH, HumanEval
- Today's v4.3 incorporates 10 difficult evaluations covering long-horizon agentic tasks, hard coding, and knowledge work
- A snapshot of how the industry's eval focus shifted from Q&A to agentic capability
Related event: Two Years After o1-preview, Reasoning Is Standard Across Frontier Models(3 posts)→
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