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StepFun: Step 3.5 Flash

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....

β€”
Rank
256K
Context Window
$0.09
Min Input /1M
$0.30
Min Output /1M

Model Info

Model ID stepfun-step-3-5-flash
Modality text->text
Context Window 256K tokens
Platforms OR

Usage & Rankings

Rank Unranked
Weekly Usage β€”

Cross-Platform Pricing

Platform Input /1M Output /1M Context Model ID
OR OpenRouter $0.090 $0.300 256K stepfun/step-3.5-flash
Input
$0.090
/ 1M tokens
Output
$0.300
/ 1M tokens
Round Trip
$0.39
/ 1M tokens
Value Rating
🟒
🟒 Economy β€” great for high volume

About StepFun: Step 3.5 Flash

StepFun: Step 3.5 Flash is a large language model with a 256K token context window.

The best available input price is $0.090/1M tokens and output price is $0.300/1M tokens, with a round-trip cost of $0.39/1M tokens.