Context Window
256,000
Tokens
Model Cost Profile
Developer: stepfun
Pricing updated Mar 11, 2026
StepFun: Step 3.5 Flash is designed for applications requiring extensive context, supporting up to 256,000 tokens, making it ideal for complex document analysis and long-form content generation. With an input price of $0.10 per million tokens and an output price of $0.30 per million tokens, teams can effectively manage costs while leveraging the model for tasks like real-time data processing and interactive chatbots. This pricing structure allows organizations to scale their usage based on project needs, ensuring efficient resource allocation for both small and large-scale implementations.
Context Window
256,000
Tokens
Input Price / 1M
$0.1000
Prompt tokens
Output Price / 1M
$0.3000
Completion tokens
Intelligence (MMLU)
Benchmark Pending
Massive Multitask Language Understanding
| Usage Type | Price / 1M Tokens |
|---|---|
| Input (Prompt) | $0.1000 |
| Output (Completion) | $0.3000 |
Price History
Current Input / 1M
$0.1000
Current Output / 1M
$0.3000
Estimate monthly spend for StepFun: Step 3.5 Flash based on your workload.
Estimated Monthly Cost
$6.10
25M input + 12M output tokens
Quick links for cost-down decisions before production rollout.
Common pricing and benchmark questions for StepFun: Step 3.5 Flash.
StepFun: Step 3.5 Flash input pricing is $0.1000 per 1M tokens based on the latest synced provider data.
StepFun: Step 3.5 Flash output pricing is $0.3000 per 1M tokens based on the latest synced provider data.
StepFun: Step 3.5 Flash supports a context window of 256,000 tokens.
Use the comparison links on this page to open direct model-vs-model pricing and benchmark pages, then evaluate monthly spend projections for your workload.