0

Step 5 Preview

Publisher
Stepfun
Input
Output
Released
18 Sep 2026

Cite

Notes

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Attribution

Benchmark scores
AAVals AI
Attribution policy →
Input
$1
/1M tok
Output
$2.70
/1M tok
Blended
$1.43
#396/ 494/1M · 3:1
Speed
89

Price & speed via Artificial Analysis · ranked across tracked models

Reported on 6 evals across 5 domains - best 70.4% on Vibe Code Bench v1.1 · #30 of 90

Reported eval scores

6