StepFun

2 models behind one key

Shanghai lab known for its Step series of large multimodal models.

ModelContextInput /1MOutput /1M

Step 3.7 FlashMay 28, 2026256K$0.200 + 3% $0.0060 = $0.206$1.15 + 3% $0.034 = $1.18ctx 256K · in$0.200 + 3% $0.0060 = $0.206out$1.15 + 3% $0.034 = $1.18
Step 3.5 FlashJan 29, 2026262K$0.100 + 3% $0.0030 = $0.103$0.300 + 3% $0.0090 = $0.309ctx 262K · in$0.100 + 3% $0.0030 = $0.103out$0.300 + 3% $0.0090 = $0.309

Prices per 1M tokens, flat 3% fee included. Hover or tap a price for the math.