Code · best for

Top picks for Code Refactoring (2026)

Safely restructuring an existing codebase across many files. Ranked from 334 live models on the OpenRouter catalog, weighted for context window, reasoning quality, structured output.

What this is Ranked by capability match + real benchmark scores (Aider Polyglot, Artificial Analysis Intelligence Index) + live pricing. Models need the right specs for Code Refactoring, then benchmark performance refines the order. Full methodology →
#ModelScoreIn / 1MOut / 1MContext
1 Anthropic: Claude Sonnet 4.6anthropic/claude-sonnet-4.6 181 $3.00 $15.00 1,000,000 Details →
2 Anthropic: Claude Opus 4.7anthropic/claude-opus-4.7 180 $5.00 $25.00 1,000,000 Details →
3 OpenAI: GPT-5.4openai/gpt-5.4 174 $2.50 $15.00 1,050,000 Details →
4 Z.ai: GLM 5.2z-ai/glm-5.2 171 $1.00 $4.00 1,048,576 Details →
5 Anthropic: Claude Opus 4.8anthropic/claude-opus-4.8 171 $5.00 $25.00 1,000,000 Details →
6 DeepSeek: DeepSeek V4 Prodeepseek/deepseek-v4-pro 170 $0.43 $0.87 1,048,576 Details →
7 Google: Gemini 3.1 Pro Previewgoogle/gemini-3.1-pro-preview 169 $2.00 $12.00 1,048,576 Details →
8 DeepSeek: DeepSeek V4 Flashdeepseek/deepseek-v4-flash 167 $0.09 $0.18 1,048,576 Details →
9 OpenAI: GPT-5.5openai/gpt-5.5 167 $5.00 $30.00 1,050,000 Details →
10 Google: Gemini 3.5 Flashgoogle/gemini-3.5-flash 162 $1.50 $9.00 1,048,576 Details →
11 MoonshotAI: Kimi K2.6moonshotai/kimi-k2.6 160 $0.66 $3.50 262,144 Details →
12 MiniMax: MiniMax M3minimax/minimax-m3 160 $0.30 $1.20 1,048,576 Details →
13 Xiaomi: MiMo-V2.5-Proxiaomi/mimo-v2.5-pro 158 $0.43 $0.87 1,048,576 Details →
14 OpenAI: GPT-5.4 Miniopenai/gpt-5.4-mini 158 $0.75 $4.50 400,000 Details →
15 Qwen: Qwen3.7 Maxqwen/qwen3.7-max 158 $1.25 $3.75 1,000,000 Details →

How we ranked these

For Code Refactoring, we weight models on context window, reasoning quality, structured output. Scores combine each model's public specs with independent benchmark results (Aider Polyglot coding scores, Artificial Analysis intelligence/coding/agentic indices) and live pricing. See full methodology →

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