name = "StepFun: Step 3.5 Flash"
description = "StepFun flash model for efficient multimodal reasoning, coding, and tool use"
release_date = "2026-01-29"
last_updated = "2026-01-29"
attachment = false
reasoning_options = [{ type = "effort", values = ["low", "medium", "high"] }]
reasoning = true
temperature = true
tool_call = true
open_weights = true

[cost]
input = 0.1
output = 0.3
cache_read = 0.02

[limit]
context = 256000
output = 256000

[modalities]
input = ["text"]
output = ["text"]