StepFun Step API Pricing (October 2026)

6 StepFun models with API prices, USD per 1M tokens.

Lowest input price among StepFun models
Step 3.5 Flash · $0.10
Longest context among StepFun models
Step 5 Preview · 1.02M
StepFun model prices, USD per 1M tokens
Source
Step 1 (32K)$2.05$9.59$0.4133Kmodels.dev
Step 2 (16K)$5.21$16.44$1.0416Kmodels.dev
Step 3.5 Flash$0.10$0.30$0.02256Kmodels.dev
Step 3.5 Flash 2603$0.10$0.30$0.02256Kmodels.dev
Step 3.7 Flash$0.185$1.11$0.037256Kmodels.dev
Step 5 Preview$1.00$2.70$0.051.02Mmodels.dev

StepFun price changes

No price changes recorded for StepFun models yet.

Questions

How much does the StepFun Step API cost?
StepFun lists 6 models. Input prices range from $0.10 (Step 3.5 Flash) to $5.21 (Step 2 (16K)) per 1M tokens, and output prices range from $0.30 (Step 3.5 Flash) to $16.44 (Step 2 (16K)) per 1M tokens.
Does StepFun offer prompt caching or batch prices?
6 of 6 StepFun models have a published cache read price, and 0 have a batch price.
How often are StepFun prices updated?
We check prices every 6 hours; last checked Oct 10, 2026. These are StepFun's list prices as compiled by models.dev.