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stepfun-ai/step3

step3

Provider: SiliconFlow (China), Context: 66000, Output Limit: 66000

Available at 3 Providers

Provider Source Input Price ($/1M) Output Price ($/1M) Description Free
siliconflowcn models-dev Input: $0.57 Output: $1.42 Provider: SiliconFlow (China), Context: 66000, Output Limit: 66000
siliconflow models-dev Input: $0.57 Output: $1.42 Provider: SiliconFlow, Context: 66000, Output Limit: 66000
openrouter openrouter Input: $0.57 Output: $1.42 Step3 is a cutting-edge multimodal reasoning model—built on a Mixture-of-Experts architecture with 321B total parameters and 38B active. It is designed end-to-end to minimize decoding costs while delivering top-tier performance in vision–language reasoning. Through the co-design of Multi-Matrix Factorization Attention (MFA) and Attention-FFN Disaggregation (AFD), Step3 maintains exceptional efficiency across both flagship and low-end accelerators. Context: 65536