4 models
Ranked by Artificial Analysis Coding Index
Reasoning Tools JSON Open weights 37.1

Newer StepFun flash model for faster agents, coding, and multimodal prompts

stepfun/step-3.7-flash 2026-05-29 256K context $0.185/M input $1.11/M output
17 providers
Open weights 31.6

StepFun flash lane for quick multimodal reasoning and coding assistance

stepfun/step-3.5-flash 2026-01-29 256K context $0.1/M input $0.3/M output
14 providers
Reasoning Tools Open weights 29.5

Late GLM-4 workhorse for coding agents, reasoning, and structured tasks

zhipuai/glm-4.6 2025-09-30 204.8K context $0.6/M input $2.2/M output
18 providers
Tools Open weights 19.4

Smaller Qwen coder for efficient local agents and repo-level fixes

alibaba/qwen3-coder-30b-a3b-instruct 2025-04 262.144K context $0.45/M input $2.25/M output
13 providers