All AI models · LLM benchmarks · Methodology

StepFun

Step-3

StepFun flash model for efficient multimodal reasoning, coding, and tool use

Model facts

Context window
66K tokens
Maximum output
64K tokens
Cheapest paid input
$0.21 per 1M tokens
Cheapest paid output
$0.57 per 1M tokens
Open weights
no
Providers
1

Capabilities and modalities

reasoning, tool calling, attachments, temperature control, text, image.

Observed price history

  • 2026-08-24: $0.21 input / $0.57 output per 1M tokens

API providers