A listing on the Artificial Analysis website revealed that Step Fun's latest unannounced model charges $1.00 per 1 million input tokens and $2.70 per 1 million output tokens. The Step 5 Preview achieved a score of 44 on the platform's Intelligence Index and offers a 1 million token context window for processing large amounts of data.

No official announcement has been made by the company regarding the release of the model. Users who have accessed the preview describe the current version as underbaked in several respects, though they indicate the full version is positioned to join the top tier of frontier AI models in China.