Head-to-head token pricing, context window limits, and blended inference cost comparison between DeepSeek V4.1 Flash (DeepSeek) and Step 5 Preview (StepFun).
Step 5 Preview costs 5.4x more than DeepSeek V4.1 Flash on a 3:1 blended token workload. DeepSeek V4.1 Flash has a context window of 1049k tokens, while Step 5 Preview provides 1000k tokens.