MDL
Step-3.5-Flash
stepfun-ai
Capability
—
percentile index
Downloads
333.1K
on HF
Likes
818
Avg score
—
Weights
Open
Released
Feb 1, 2026
About
Step-3.5-Flash is a open-weights model in the Step family from stepfun-ai.
apache-2.0text-generation
Benchmark scores · 0
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The research behind this model
all papers mentioning it →Step 3.5 Flash: Open Frontier-Level Intelligence with 11B Active ParametersPaCoRe: Learning to Scale Test-Time Compute with Parallel Coordinated ReasoningStep-3 is Large yet Affordable: Model-system Co-design for Cost-effective DecodingOPD-Evolver: Cultivating Holistic Agent Evolver via On-Policy Distillation▲ 27 on HF · Jun 16, 2026
Mentions matched by name in title/abstract — from the arXiv + HF daily corpus.