How much does Step 2 16K cost?

The lowest price for Step 2 16K is $2 /1M, at AIHubMix.

Is Step 2 16K open source?

We have not found Step 2 16K's weights published by its maker.

1 API providers serve Step 2 16K. Compare their prices above, or open a provider to see everything it offers.

Step 2 16K is a text model by StepFun. One provider serves it: AIHubMix, at $2 /1M.

Lowest price$2/1Mat AIHubMix

Maker's price—The maker does not sell it

Providers1

Context—

Against the 737 text models on the site priced the same way.

Mid-priced: its lowest price is $2 /1M against a median of $1.10; 62% of comparable models cost less.
1 providers serve it; 0% of comparable models have fewer.

Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.

Provider	Input	Output	Prompt caching	Context
AIHubMix	$2/1M	$2/1M	—	—

Prices in US dollars, updated daily from each provider. Prices last checked Oct 25, 2026.

Same kind of model from other makers, at a similar price.

Model	Lowest price	Context	Arena	Providers
Step 2 16Kthis model	$2/1M	—	—	1
GLM-5.3	$1.10/1M	1.05M	1623	49
Qwen3.8 2.4T A95B	$4.11/1M	1M	—	22
Grok 4.7	$4.80/1M	500K	1637	28
Gemini 3 Flash	$2.40/1M	1.05M	1466	5
Mistral Large 4	$2.09/1M	1.05M	1543	13
Muse Spark 1.3	$4.25/1M	1.05M	1657	11
Sonar	$1/1M	127K	—	9
GLM-5.2	$1.80/1M	1M	1604	44