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Top picks for Regex Writing (2026)
Crafting regular expressions that actually match what you intend. Ranked from 452 live models on the OpenRouter catalog, weighted for reasoning quality, low cost.
Updated 2026-10-13 · prices checked at this morning's rebuild
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 →
1
Anthropic: Claude Opus 4.7 (batch)
132 score
$2.50 in / $12.50 out per 1M
2
OpenAI: o3 (batch)
131 score
$1.00 in / $4.00 out per 1M
3
Anthropic: Claude Sonnet 4.6 (batch)
131 score
$1.50 in / $7.50 out per 1M
Which should you use? Anthropic: Claude Opus 4.7 (batch) tops this ranking on blended score. If cost drives the decision, OpenAI: o4 Mini (batch) is the cheapest of the leaders at $0.55/M input.
| # | Model | Score | In / 1M | Out / 1M | Context | |
|---|---|---|---|---|---|---|
| 1 | Anthropic: Claude Opus 4.7 (batch)anthropic/claude-opus-4.7:batch | 132 | $2.50 | $12.50 | 1,000,000 | Details → |
| 2 | OpenAI: o3 (batch)openai/o3:batch | 131 | $1.00 | $4.00 | 200,000 | Details → |
| 3 | Anthropic: Claude Sonnet 4.6 (batch)anthropic/claude-sonnet-4.6:batch | 131 | $1.50 | $7.50 | 1,000,000 | Details → |
| 4 | OpenAI: o3openai/o3 | 130 | $2.00 | $8.00 | 200,000 | Details → |
| 5 | OpenAI: o4 Mini (batch)openai/o4-mini:batch | 130 | $0.55 | $2.20 | 200,000 | Details → |
| 6 | OpenAI: o4 Miniopenai/o4-mini | 129 | $1.10 | $4.40 | 200,000 | Details → |
| 7 | OpenAI: GPT-5 (batch)openai/gpt-5:batch | 129 | $0.62 | $5.00 | 400,000 | Details → |
| 8 | Anthropic: Claude Sonnet 4.6anthropic/claude-sonnet-4.6 | 129 | $3.00 | $15.00 | 1,000,000 | Details → |
| 9 | OpenAI: GPT-5openai/gpt-5 | 128 | $1.25 | $10.00 | 400,000 | Details → |
| 10 | Anthropic: Claude Sonnet 5.5 (batch)anthropic/claude-sonnet-5.5:batch | 128 | $1.00 | $5.00 | 1,000,000 | Details → |
| 11 | OpenAI: GPT-5.4 (batch)openai/gpt-5.4:batch | 128 | $1.25 | $7.50 | 1,050,000 | Details → |
| 12 | Google: Gemini 2.5 Flash (batch)google/gemini-2.5-flash:batch | 127 | $0.15 | $1.25 | 1,048,576 | Details → |
| 13 | Google: Gemini 2.5 Flashgoogle/gemini-2.5-flash | 127 | $0.30 | $2.50 | 1,048,576 | Details → |
| 14 | Xiaomi: MiMo-V2.6-Proxiaomi/mimo-v2.6-pro | 127 | $0.43 | $0.87 | 1,050,000 | Details → |
| 15 | OpenAI: GPT-6.1 Sol (batch)openai/gpt-6.1-sol:batch | 127 | $1.00 | $5.00 | 1,050,000 | Details → |
From this site
PicksByModel API
These rankings as live JSON: quality scores, pricing, and context for every model.
See plans →
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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