StepFun price history

Every pricing change we record for StepFun API models, newest first. Tracking began Oct 8, 2026. Prices re-verified Oct 8, 2026.

What changed

3 recorded changes · newest first · every move keeps its receipt

Oct 8, 2026

New model added: Step 5 Preview new listing

Step 5 Preview began being tracked.
Oct 8, 2026

New model added: Step 3.7 Flash new listing

Step 3.7 Flash began being tracked.
Oct 8, 2026

New model added: Step 3.5 Flash new listing

Step 3.5 Flash began being tracked.

2 models · cheapest blended first

Per 1M tokens, cheapest blended first. "First tracked" is when this model entered our price history.

Current StepFun model prices per 1M tokens with the date each entered our price history
Model	Blended*	Input	Output	First tracked
Step 3.5 Flash	$0.150	$0.100	$0.300	Oct 8, 2026
Step 3.7 Flash	$0.438	$0.200	$1.15	Oct 8, 2026

* Blended = (3×input + 1×output) ÷ 4 $/1M tokens MODELPRICEWATCH.COM · 2026-10-08

ModelPriceWatch re-verifies StepFun API pricing against its official pricing page on a twice-daily refresh cycle and records every change here.