Code · best for
Top picks for Regex Writing (2026)
Crafting regular expressions that actually match what you intend. Ranked from 334 live models on the OpenRouter catalog, weighted for reasoning quality, low cost.
What this is
Ranked by capability match + real benchmark scores (Aider Polyglot, Artificial Analysis Intelligence Index) + live pricing. Models need the right specs for Regex Writing, then benchmark performance refines the order. Full methodology →
| # | Model | Score | In / 1M | Out / 1M | Context | |
|---|---|---|---|---|---|---|
| 1 | Anthropic: Claude Sonnet 4.6anthropic/claude-sonnet-4.6 | 140 | $3.00 | $15.00 | 1,000,000 | Details → |
| 2 | DeepSeek: DeepSeek V4 Prodeepseek/deepseek-v4-pro | 137 | $0.43 | $0.87 | 1,048,576 | Details → |
| 3 | OpenAI: GPT-5.4openai/gpt-5.4 | 136 | $2.50 | $15.00 | 1,050,000 | Details → |
| 4 | Z.ai: GLM 5.2z-ai/glm-5.2 | 136 | $1.00 | $4.00 | 1,048,576 | Details → |
| 5 | DeepSeek: DeepSeek V4 Flashdeepseek/deepseek-v4-flash | 136 | $0.09 | $0.18 | 1,048,576 | Details → |
| 6 | MoonshotAI: Kimi K2.6moonshotai/kimi-k2.6 | 136 | $0.66 | $3.50 | 262,144 | Details → |
| 7 | Anthropic: Claude Opus 4.7anthropic/claude-opus-4.7 | 135 | $5.00 | $25.00 | 1,000,000 | Details → |
| 8 | MiniMax: MiniMax M3minimax/minimax-m3 | 134 | $0.30 | $1.20 | 1,048,576 | Details → |
| 9 | Google: Gemini 3.1 Pro Previewgoogle/gemini-3.1-pro-preview | 134 | $2.00 | $12.00 | 1,048,576 | Details → |
| 10 | Google: Gemini 3.5 Flashgoogle/gemini-3.5-flash | 133 | $1.50 | $9.00 | 1,048,576 | Details → |
| 11 | Z.ai: GLM 5.1z-ai/glm-5.1 | 133 | $0.98 | $3.08 | 202,752 | Details → |
| 12 | MoonshotAI: Kimi K2.7 Codemoonshotai/kimi-k2.7-code | 133 | $0.61 | $3.07 | 262,144 | Details → |
| 13 | Qwen: Qwen3.5 397B A17Bqwen/qwen3.5-397b-a17b | 133 | $0.39 | $2.45 | 256,000 | Details → |
| 14 | Xiaomi: MiMo-V2.5-Proxiaomi/mimo-v2.5-pro | 132 | $0.43 | $0.87 | 1,048,576 | Details → |
| 15 | OpenAI: o3openai/o3 | 132 | $2.00 | $8.00 | 200,000 | Details → |
How we ranked these
For Regex Writing, we weight models on reasoning quality, low cost. 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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