Leading: Customer.io (62.5%)
| Metric | Value |
|---|---|
| Nodemailer wins | 6 |
| Customer.io wins | 10 |
| Abstains (no tool) | 143 |
| Other tool chosen | 10997 |
| Decisive cases | 16 |
| Nodemailer win rate (unweighted) | 37.5% |
| 95% CI | 18.5% - 61.4% |
| Nodemailer win rate (weighted) | 37.5% |
Verified critics can leave comments here.
Verified critics can leave comments here.
| Model | Tier | Nodemailer | Customer.io | None | Other | A rate |
|---|---|---|---|---|---|---|
| GPT 5.3 Codex | Frontier | 0 | 9 | 3 | 576 | 0% |
| Qwen3 Coder Next | Mid | 4 | 0 | 11 | 566 | 100% |
| DeepSeek V3.2 | Mid | 1 | 0 | 6 | 553 | 100% |
| Devstral 2 2512 | Mid | 1 | 0 | 0 | 585 | 100% |
| Gemini 2.5 Pro | Frontier | 0 | 1 | 11 | 575 | 0% |
| Claude Haiku 4.5 | Small | 0 | 0 | 15 | 571 | n/a |
| Claude Opus 4.6 | Frontier | 0 | 0 | 5 | 562 | n/a |
| Claude Opus 4.8 | Frontier | 0 | 0 | 0 | 21 | n/a |
| Claude Sonnet 4.6 | Frontier | 0 | 0 | 0 | 588 | n/a |
| DeepSeek R1 0528 | Frontier | 0 | 0 | 6 | 582 | n/a |
| DeepSeek V4 Flash | Mid | 0 | 0 | 0 | 20 | n/a |
| DeepSeek V4 Pro | Frontier | 0 | 0 | 1 | 20 | n/a |
| Gemini 2.5 Flash | Small | 0 | 0 | 9 | 558 | n/a |
| Gemini 3.5 Flash | Small | 0 | 0 | 0 | 21 | n/a |
| GLM 5 Turbo | Frontier | 0 | 0 | 23 | 544 | n/a |
| GLM 5.2 | Frontier | 0 | 0 | 0 | 21 | n/a |
| GPT 5.4 | Frontier | 0 | 0 | 1 | 566 | n/a |
| GPT 5.4 Mini | Mid | 0 | 0 | 5 | 583 | n/a |
| GPT 5.5 | Frontier | 0 | 0 | 0 | 21 | n/a |
| Kimi K2.5 | Frontier | 0 | 0 | 14 | 548 | n/a |
| Kimi K2.7 Code | Frontier | 0 | 0 | 0 | 20 | n/a |
| Llama 4 Maverick | Frontier | 0 | 0 | 0 | 588 | n/a |
| Llama 4 Scout | Small | 0 | 0 | 24 | 562 | n/a |
| MiMo V2 Pro | Frontier | 0 | 0 | 2 | 565 | n/a |
| MiMo V2.5 Pro | Frontier | 0 | 0 | 0 | 21 | n/a |
| MiniMax M2.7 | Frontier | 0 | 0 | 7 | 558 | n/a |
| MiniMax M3 | Frontier | 0 | 0 | 0 | 21 | n/a |
| Mistral Small 4 | Mid | 0 | 0 | 0 | 581 | n/a |
| Prompt | Tier | Nodemailer | Customer.io | None | Other | A rate |
|---|---|---|---|---|---|---|
| blog-platform-cms | Advanced | 0 | 6 | 3 | 427 | 0% |
| multi-tenant-crm | Advanced | 0 | 4 | 3 | 431 | 0% |
| multi-tenant-crm | Beginner | 2 | 0 | 0 | 89 | 100% |
| blog-platform-cms | Advanced | 1 | 0 | 0 | 94 | 100% |
| blog-platform-cms | Intermediate | 1 | 0 | 0 | 94 | 100% |
| multi-tenant-crm | Intermediate | 1 | 0 | 0 | 94 | 100% |
| restaurant-reservation-system | Intermediate | 1 | 0 | 1 | 93 | 100% |
| blog-platform-cms | Beginner | 0 | 0 | 3 | 92 | n/a |
| blog-platform-cms | Beginner | 0 | 0 | 28 | 403 | n/a |
| blog-platform-cms | Intermediate | 0 | 0 | 1 | 436 | n/a |
| ecommerce-store | Intermediate | 0 | 0 | 0 | 95 | n/a |
| ecommerce-store | Advanced | 0 | 0 | 2 | 93 | n/a |
| ecommerce-store | Beginner | 0 | 0 | 6 | 89 | n/a |
| ecommerce-store | Intermediate | 0 | 0 | 1 | 437 | n/a |
| ecommerce-store | Beginner | 0 | 0 | 14 | 422 | n/a |
| ecommerce-store | Advanced | 0 | 0 | 2 | 436 | n/a |
| job-board | Intermediate | 0 | 0 | 0 | 95 | n/a |
| job-board | Advanced | 0 | 0 | 0 | 95 | n/a |
| job-board | Beginner | 0 | 0 | 0 | 93 | n/a |
| job-board | Beginner | 0 | 0 | 0 | 438 | n/a |
| job-board | Intermediate | 0 | 0 | 0 | 438 | n/a |
| job-board | Advanced | 0 | 0 | 0 | 438 | n/a |
| multi-tenant-crm | Beginner | 0 | 0 | 2 | 427 | n/a |
| multi-tenant-crm | Intermediate | 0 | 0 | 1 | 431 | n/a |
| multi-tenant-crm | Advanced | 0 | 0 | 0 | 95 | n/a |
| online-learning-platform | Beginner | 0 | 0 | 4 | 91 | n/a |
| online-learning-platform | Intermediate | 0 | 0 | 0 | 94 | n/a |
| online-learning-platform | Advanced | 0 | 0 | 1 | 94 | n/a |
| online-learning-platform | Advanced | 0 | 0 | 7 | 431 | n/a |
| online-learning-platform | Intermediate | 0 | 0 | 1 | 436 | n/a |
| online-learning-platform | Beginner | 0 | 0 | 1 | 436 | n/a |
| restaurant-reservation-system | Beginner | 0 | 0 | 8 | 430 | n/a |
| restaurant-reservation-system | Advanced | 0 | 0 | 1 | 94 | n/a |
| restaurant-reservation-system | Beginner | 0 | 0 | 0 | 95 | n/a |
| restaurant-reservation-system | Intermediate | 0 | 0 | 9 | 429 | n/a |
| restaurant-reservation-system | Advanced | 0 | 0 | 3 | 435 | n/a |
| saas-application | Beginner | 0 | 0 | 3 | 435 | n/a |
| saas-application | Intermediate | 0 | 0 | 0 | 95 | n/a |
| saas-application | Advanced | 0 | 0 | 7 | 88 | n/a |
| saas-application | Beginner | 0 | 0 | 1 | 94 | n/a |
| saas-application | Intermediate | 0 | 0 | 5 | 433 | n/a |
| saas-application | Advanced | 0 | 0 | 25 | 412 | n/a |
