stepfunPopular for OpenClaw
StepFun: Step 3.5 Flash
stepfun/step-3.5-flash
For $1, you can send approximately:
~357messages
How do we get this number?
One message = ~7,000 input tokens + ~7,000 output tokens
Input cost per message7,000 x $0.10/M = $0.000700
Output cost per message7,000 x $0.30/M = $0.002100
Total cost per message$0.002800
Messages for $1357.14
Context window
262k
tokens
Max response
66k
tokens
Input price
$0.10
per million tokens
Output price
$0.30
per million tokens
Modalities
Input:textOutput:text
Description
Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....