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stepfun-ai /
Step-3.5-Flash
31.5 DZD in 105 DZD out 7 DZD cached/ 1M tokens
Step 3.5 Flash is an open-source reasoning model by StepFun with 196B total parameters (11B active) using Mixture of Experts. It features a 256K context window, deep reasoning, tool calling, and agentic capabilities, achieving 97.3 on AIME 2025 and 74.4% on SWE-bench Verified.
ArchitectureMoE
Context Window262K