Step 3.5 Flash 2603 is optimized for high-frequency agentic and coding workflows with improved token efficiency and faster reasoning. NOTE: This model runs via StepFun, which may log and train on your prompts.
Added Apr 14, 2026
Context Window
256.0K
Max Output
256.0K
Input Price
$0.10/1M
Output Price
$0.30/1M
Capabilities
Performance metrics and benchmarks
Sourced from Artificial Analysis.
No benchmark data is available yet for this model.
