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Unverified55% confidenceFactTime unknown

阶跃星辰（StepFun）发布了开源模型Step 3.5 Flash，拥有1960亿总参数，运行时只激活110亿参数

1

Sources

55%

Confidence

Medium-term (~90 days)

Relevance

6/1/2026

First Seen

Valid until: 8/30/2026

Sources

Step 3.5 Flash深度解析：1960亿参数开源模型击败Gemini的秘密

bilibili安得广厦千万间678

Related Entities

阶跃星辰company Step 3.5 Flashmodel

Related Claims

UnverifiedStepFun发布的STEP3.7 Flash大模型在AA Benchmark（Artificial Analysis）上排名第一，涵盖速度、性价比和端到端多模态性能三个维度75% similar UnverifiedStep 3.7 Flash 在 V* 基准测试中达到 95.3 分69% similar Unverified盘古2.0 Flash采用MoE（混合专家）架构，参数规模为92B A6B（总参数92B，激活参数6B）67% similar VerifiedDeepSeek V4 Flash uses a Mixture of Experts (MOE) architecture with a total parameter count exceeding 600 billion (600B+).67% similar UnverifiedDeepSeek在4月底开源了V4 Flash版本，参数量为2840亿，采用MIT协议63% similar

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