StepFun

Step 3

Type
language model
Context
66K tokens
Max output
8K
Released
31 July 2025
Knowledge cutoff
January 2025
API string
step-3

Prices by provider

Provider Input, $ per 1M Output, $ per 1M In our data since
ZenMux $0.21 $0.57 31 Jul 2026
NanoGPT $0.25 $0.649 31 Jul 2026

Only the base tier and only per-token prices are shown. Batch, discounted and cached rates, as well as prices per image or per second of video, do not go into this table: they cannot stand in the same column as a price per million tokens.

The date in the last column is the day this price first entered our collection. The price may well be older: before that day we simply were not recording it. It has not changed since — otherwise a new row with a new date would stand in its place.

Measurement results

Task set Result Run conditions Measured by
Arena Score in Spanish 1,380.53 1,338–1,424
Arena Score in English 1,370.04 1,360–1,380
Arena Score, mathematics 1,367.15 1,336–1,398
Arena Score, programming 1,365.68 1,349–1,382
Arena Score, hard prompts 1,354.57 1,344–1,365
Arena Score, overall 1,349.74 1,342–1,357
Arena Score, multi-turn dialogue 1,338.08 1,320–1,356
Arena Score, instruction following 1,332.15 1,318–1,347
Arena Score, expert questions 1,330.51 1,296–1,365
Arena Score, long queries 1,327.15 1,311–1,343
Arena Score in Russian 1,324.81 1,297–1,353
Arena Score, creative writing 1,318.79 1,298–1,340
Arena Score, working with images 1,176.31 1,165–1,188
Arena Score, text recognition in images 1,168.14 1,151–1,185
Arena Score, understanding diagrams 1,153.08 1,123–1,183