Step 3.7 Flash · deepinfra

Step 3.7 Flash is an open-source multimodal reasoning model by StepFun with 198B total parameters (11B active) using Mixture of Experts. It accepts text and image inputs and features a 256K context window, selectable reasoning effort, tool calling, and agentic capabilities for coding and search workflows, scoring 80.9% on GPQA Diamond and 56.3% on SWE-bench Pro.

Base modelAll models on this baseAll models of the providerto the provider

All StepFun models at every provider

Input, $/1M $0.20

Output, $/1M $1.15

Context 262 144

Accepts images, text, video

Last checked 04.11.2026 12:00:14 UTC

Source —