Step 5 Preview

Publisher: Stepfun
Input
Output
Released: 18 Sep 2026

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Attribution

Benchmark scores: AA

Attribution policy →

Input

$1

/1M tok

Output

$2.70

/1M tok

Blended

$1.43

#386/ 479/1M · 3:1

Speed

93

Price & speed via Artificial Analysis · ranked across tracked models

Reported on 2 evals across 2 domains - best 58.9% on SciCode · #3 of 451

Reported eval scores

2

Humanity's Last Exam (HLE)46.5