# Stepfun (阶跃星辰) — https://platform.stepfun.com
# Models: 4

[provider]
id = "stepfun"
display_name = "Stepfun (阶跃星辰)"
api_key_env = "STEPFUN_API_KEY"
base_url = "https://api.stepfun.com/v1"
key_required = true

[[models]]
id = "step-3.5-flash"
display_name = "Step 3.5 Flash"
tier = "smart"
context_window = 256000
max_output_tokens = 256000
input_cost_per_m = 0.1
output_cost_per_m = 0.3
supports_tools = true
supports_vision = false
supports_streaming = true
aliases = ["stepfun-flash", "step-flash"]

[[models]]
id = "step-3"
display_name = "Step 3"
tier = "frontier"
context_window = 65536
max_output_tokens = 16384
input_cost_per_m = 0.1
output_cost_per_m = 0.3
supports_tools = true
supports_vision = true
supports_streaming = true
aliases = ["stepfun-3"]

[[models]]
id = "step-2-mini"
display_name = "Step 2 Mini"
tier = "fast"
context_window = 32768
max_output_tokens = 8192
input_cost_per_m = 0.14
output_cost_per_m = 0.29
supports_tools = true
supports_vision = false
supports_streaming = true
aliases = ["stepfun-mini"]

[[models]]
id = "step-1o-turbo-vision"
display_name = "Step 1o Turbo Vision"
tier = "smart"
context_window = 32768
max_output_tokens = 8192
input_cost_per_m = 0.36
output_cost_per_m = 1.14
supports_tools = false
supports_vision = true
supports_streaming = true
aliases = ["stepfun-vision"]