| Metric | Value |
|---|---|
| Mailgun wins | 288 |
| Postmark wins | 791 |
| Abstains (no tool) | 143 |
| Other tool chosen | 9934 |
| Decisive cases | 1079 |
| Mailgun win rate (unweighted) | 26.7% |
| 95% CI | 24.1% - 29.4% |
| Mailgun win rate (weighted) | 26.7% |
Verified critics can leave comments here.
Verified critics can leave comments here.
| Model | Tier | Mailgun | Postmark | None | Other | A rate |
|---|---|---|---|---|---|---|
| GPT 5.3 Codex | Frontier | 1 | 172 | 3 | 412 | 1% |
| Mistral Small 4 | Mid | 8 | 147 | 0 | 426 | 5% |
| Gemini 2.5 Pro | Frontier | 34 | 99 | 11 | 443 | 26% |
| Claude Opus 4.6 | Frontier | 46 | 80 | 5 | 436 | 37% |
| Llama 4 Maverick | Frontier | 81 | 0 | 0 | 507 | 100% |
| Claude Sonnet 4.6 | Frontier | 28 | 44 | 0 | 516 | 39% |
| Qwen3 Coder Next | Mid | 1 | 71 | 11 | 498 | 1% |
| Devstral 2 2512 | Mid | 21 | 38 | 0 | 527 | 36% |
| Gemini 2.5 Flash | Small | 18 | 33 | 9 | 507 | 35% |
| GPT 5.4 Mini | Mid | 0 | 51 | 5 | 532 | 0% |
| MiMo V2 Pro | Frontier | 15 | 6 | 2 | 544 | 71% |
| GPT 5.4 | Frontier | 5 | 12 | 1 | 549 | 29% |
| MiniMax M2.7 | Frontier | 10 | 6 | 7 | 542 | 63% |
| Llama 4 Scout | Small | 14 | 0 | 24 | 548 | 100% |
| DeepSeek V3.2 | Mid | 2 | 8 | 6 | 544 | 20% |
| Kimi K2.5 | Frontier | 0 | 9 | 14 | 539 | 0% |
| GPT 5.5 | Frontier | 0 | 7 | 0 | 14 | 0% |
| Claude Opus 4.8 | Frontier | 0 | 3 | 0 | 18 | 0% |
| DeepSeek R1 0528 | Frontier | 1 | 1 | 6 | 580 | 50% |
| GLM 5.2 | Frontier | 1 | 1 | 0 | 19 | 50% |
| GLM 5 Turbo | Frontier | 0 | 2 | 23 | 542 | 0% |
| Claude Haiku 4.5 | Small | 1 | 0 | 15 | 570 | 100% |
| Gemini 3.5 Flash | Small | 1 | 0 | 0 | 20 | 100% |
| DeepSeek V4 Pro | Frontier | 0 | 1 | 1 | 19 | 0% |
| DeepSeek V4 Flash | Mid | 0 | 0 | 0 | 20 | n/a |
| Kimi K2.7 Code | Frontier | 0 | 0 | 0 | 20 | n/a |
| MiMo V2.5 Pro | Frontier | 0 | 0 | 0 | 21 | n/a |
| MiniMax M3 | Frontier | 0 | 0 | 0 | 21 | n/a |
| Prompt | Tier | Mailgun | Postmark | None | Other | A rate |
|---|---|---|---|---|---|---|
| blog-platform-cms | Beginner | 131 | 2 | 28 | 270 | 98% |
| saas-application | Advanced | 0 | 98 | 25 | 314 | 0% |
| blog-platform-cms | Intermediate | 84 | 9 | 1 | 343 | 90% |
| online-learning-platform | Advanced | 1 | 80 | 7 | 350 | 1% |
| ecommerce-store | Advanced | 15 | 63 | 2 | 358 | 19% |
| saas-application | Beginner | 0 | 73 | 3 | 362 | 0% |
| blog-platform-cms | Advanced | 12 | 55 | 3 | 366 | 18% |
| job-board | Advanced | 0 | 67 | 0 | 371 | 0% |
| restaurant-reservation-system | Advanced | 0 | 39 | 3 | 396 | 0% |
| saas-application | Intermediate | 0 | 38 | 5 | 395 | 0% |
| multi-tenant-crm | Advanced | 0 | 32 | 3 | 403 | 0% |
| blog-platform-cms | Beginner | 29 | 0 | 3 | 63 | 100% |
| ecommerce-store | Intermediate | 1 | 23 | 1 | 413 | 4% |
| restaurant-reservation-system | Beginner | 0 | 23 | 8 | 407 | 0% |
| saas-application | Advanced | 0 | 21 | 7 | 67 | 0% |
| blog-platform-cms | Advanced | 2 | 17 | 0 | 76 | 11% |
| ecommerce-store | Beginner | 0 | 19 | 14 | 403 | 0% |
| multi-tenant-crm | Intermediate | 0 | 19 | 1 | 412 | 0% |
| restaurant-reservation-system | Intermediate | 0 | 15 | 9 | 414 | 0% |
| blog-platform-cms | Intermediate | 12 | 2 | 0 | 81 | 86% |
| online-learning-platform | Beginner | 0 | 14 | 1 | 422 | 0% |
| multi-tenant-crm | Advanced | 0 | 11 | 0 | 84 | 0% |
| saas-application | Intermediate | 0 | 10 | 0 | 85 | 0% |
| saas-application | Beginner | 0 | 10 | 1 | 84 | 0% |
| ecommerce-store | Advanced | 1 | 8 | 2 | 84 | 11% |
| job-board | Advanced | 0 | 8 | 0 | 87 | 0% |
| online-learning-platform | Advanced | 0 | 7 | 1 | 87 | 0% |
| restaurant-reservation-system | Advanced | 0 | 7 | 1 | 87 | 0% |
| restaurant-reservation-system | Beginner | 0 | 6 | 0 | 89 | 0% |
| job-board | Beginner | 0 | 3 | 0 | 435 | 0% |
| online-learning-platform | Intermediate | 0 | 3 | 1 | 433 | 0% |
| ecommerce-store | Beginner | 0 | 2 | 6 | 87 | 0% |
| multi-tenant-crm | Beginner | 0 | 2 | 2 | 425 | 0% |
| restaurant-reservation-system | Intermediate | 0 | 2 | 1 | 92 | 0% |
| multi-tenant-crm | Beginner | 0 | 1 | 0 | 90 | 0% |
| multi-tenant-crm | Intermediate | 0 | 1 | 0 | 94 | 0% |
| online-learning-platform | Beginner | 0 | 1 | 4 | 90 | 0% |
| ecommerce-store | Intermediate | 0 | 0 | 0 | 95 | n/a |
| job-board | Intermediate | 0 | 0 | 0 | 95 | n/a |
| job-board | Beginner | 0 | 0 | 0 | 93 | n/a |
| job-board | Intermediate | 0 | 0 | 0 | 438 | n/a |
| online-learning-platform | Intermediate | 0 | 0 | 0 | 94 | n/a |
