Best StepFun Models for Coding

Quick answer · Updated June 2026

Step 3.7 Flash is the best StepFun model for coding, with a 37.1 Artificial Analysis Coding Index across benchmarks like SWE-bench and SciCode. Step 3.5 Flash (31.6) is next.

37.1Coding

42.6Intelligence

92 t/sSpeed

$0.200Input /M

256KContext

AI models ranked by the Artificial Analysis Coding Index, measuring real-world software engineering ability across benchmarks like SWE-bench, SciCode and terminal tasks. The best LLMs for code generation, debugging and agentic development.

Frequently asked

What is the best StepFun model for coding?

Step 3.7 Flash is the best StepFun model for coding, with a 37.1 Artificial Analysis Coding Index across benchmarks like SWE-bench and SciCode. Step 3.5 Flash (31.6) is next.

What's a good alternative to Step 3.7 Flash?

Step 3.5 Flash (31.6) is the closest alternative on this metric. See the full ranking above for the tradeoffs.

How many StepFun models are there?

modelgrep tracks 2 StepFun models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Step 3.7 Flash. 2 of them qualify for this ranking.

More StepFun rankings

StepFun: Smartest LLMs StepFun: Best LLMs for Design & Frontend StepFun: Fastest LLMs StepFun: Lowest-Latency LLMs StepFun: Cheapest LLMs StepFun: Best Free LLMs StepFun: Best Reasoning LLMs StepFun: Best Vision LLMs StepFun: Best LLMs for Agents StepFun: Best Open-Source LLMs StepFun: Longest-Context LLMs

All rankings

Small & Fast LLMs Smartest LLMs Best LLMs for Design & Frontend Fastest LLMs Lowest-Latency LLMs Cheapest LLMs Best Free LLMs Best Reasoning LLMs Best Vision LLMs Best LLMs for Agents Best Open-Source LLMs Longest-Context LLMs