name = "Step 3.5 Flash"
description = "StepFun flash model for efficient multimodal reasoning, coding, and tool use"
release_date = "2026-02-02"
last_updated = "2026-02-02"
attachment = false
reasoning = false
temperature = true
tool_call = true
knowledge = "2025-01-01"
open_weights = false

[cost]
input = 0.10
output = 0.30

[limit]
context = 256_000
output = 64_000

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