Step 5 Preview vs DeepSeek V4.1 Flash Pricing Comparison

Head-to-head token pricing, context window limits, and blended inference cost comparison between Step 5 Preview (StepFun) and DeepSeek V4.1 Flash (DeepSeek).

Direct Answer Summary (3:1 Blended Cost)

Step 5 Preview costs 5.4x more than DeepSeek V4.1 Flash on a 3:1 blended token workload. Step 5 Preview has a context window of 1000k tokens, while DeepSeek V4.1 Flash provides 1049k tokens.

StepFun

Step 5 Preview

Input / 1M
$1.0000
Output / 1M
$2.7000
3:1 Blended / 1M
$1.4250
Context Window
1000k tokens
DeepSeek

DeepSeek V4.1 Flash

Input / 1M
$0.1500
Output / 1M
$0.6000
3:1 Blended / 1M
$0.2625
Context Window
1049k tokens
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