Retired model
Step 3.5 Flash (free)Archive and alternatives
Step 3.5 Flash (free) is no longer available on OpenRouter. Explore a current alternative below.
Specifications
Step 3.5 Flash (free) at a glance
Context
256K tokens
Max output
256K tokens
Input price
$0.0000 / 1M
Output price
$0.0000 / 1M
Capabilities
What it is good at
Good for
Long documents
Compare
Compare Step 3.5 Flash (free)
Step 3.5 Flash (free) vs Step 3.5 Flash
Step 3.5 Flash is StepFun's most capable open-source foundation model.
Open comparisonStep 3.5 Flash (free) vs Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
Open comparisonStep 3.5 Flash (free) vs DeepSeek V4 Flash (free)
V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window.
Open comparisonFAQ
Questions about Step 3.5 Flash (free)
Clear answers based on the model catalog and Krater access.
Step 3.5 Flash (free) supports a context window of 256,000 tokens.