| Metric | Value |
|---|---|
| Mailgun wins | 293 |
| Postmark wins | 866 |
| Abstains (no tool) | 134 |
| Other tool chosen | 9944 |
| Decisive cases | 1159 |
| Mailgun win rate (unweighted) | 25.3% |
| 95% CI | 22.9% - 27.9% |
| Mailgun win rate (weighted) | 25.3% |
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 | 198 | 2 | 387 | 1% |
| Mistral Small 4 | Mid | 3 | 150 | 0 | 429 | 2% |
| Gemini 2.5 Pro | Frontier | 36 | 105 | 12 | 434 | 26% |
| Claude Opus 4.6 | Frontier | 41 | 76 | 0 | 345 | 35% |
| Llama 4 Maverick | Frontier | 89 | 0 | 0 | 499 | 100% |
| Claude Sonnet 4.6 | Frontier | 28 | 53 | 0 | 507 | 35% |
| Qwen3 Coder Next | Mid | 0 | 70 | 8 | 507 | 0% |
| GPT 5.4 Mini | Mid | 0 | 58 | 6 | 524 | 0% |
| Devstral 2 2512 | Mid | 17 | 33 | 0 | 515 | 34% |
| Gemini 2.5 Flash | Small | 15 | 23 | 1 | 423 | 39% |
| GPT 5.5 | Frontier | 1 | 36 | 1 | 87 | 3% |
| Claude Opus 4.8 | Frontier | 0 | 20 | 0 | 106 | 0% |
| MiMo V2 Pro | Frontier | 14 | 5 | 2 | 441 | 74% |
| Llama 4 Scout | Small | 18 | 0 | 28 | 540 | 100% |
| MiniMax M2.7 | Frontier | 8 | 6 | 7 | 439 | 57% |
| GPT 5.4 | Frontier | 5 | 7 | 1 | 449 | 42% |
| DeepSeek V3.2 | Mid | 1 | 7 | 4 | 443 | 13% |
| DeepSeek V4 Pro | Frontier | 5 | 2 | 2 | 117 | 71% |
| Kimi K2.5 | Frontier | 0 | 7 | 14 | 436 | 0% |
| Gemini 3.5 Flash | Small | 4 | 1 | 0 | 120 | 80% |
| GLM 5.2 | Frontier | 2 | 2 | 0 | 122 | 50% |
| DeepSeek V4 Flash | Mid | 2 | 1 | 3 | 117 | 67% |
| MiniMax M3 | Frontier | 0 | 3 | 0 | 122 | 0% |
| Kimi K2.7 Code | Frontier | 1 | 1 | 0 | 123 | 50% |
| Claude Haiku 4.5 | Small | 1 | 0 | 15 | 569 | 100% |
| MiMo V2.5 Pro | Frontier | 1 | 0 | 1 | 122 | 100% |
| DeepSeek R1 0528 | Frontier | 0 | 1 | 7 | 580 | 0% |
| GLM 5 Turbo | Frontier | 0 | 1 | 20 | 441 | 0% |
| Prompt | Tier | Mailgun | Postmark | None | Other | A rate |
|---|---|---|---|---|---|---|
| blog-platform-cms | Beginner | 162 | 2 | 32 | 331 | 99% |
| saas-application | Advanced | 0 | 124 | 29 | 383 | 0% |
| blog-platform-cms | Intermediate | 96 | 11 | 2 | 426 | 90% |
| online-learning-platform | Advanced | 1 | 105 | 7 | 424 | 1% |
| ecommerce-store | Advanced | 18 | 80 | 2 | 437 | 18% |
| job-board | Advanced | 0 | 87 | 1 | 449 | 0% |
| saas-application | Beginner | 0 | 85 | 3 | 449 | 0% |
| blog-platform-cms | Advanced | 15 | 69 | 3 | 448 | 18% |
| restaurant-reservation-system | Advanced | 0 | 55 | 4 | 478 | 0% |
| saas-application | Intermediate | 0 | 45 | 5 | 487 | 0% |
| multi-tenant-crm | Advanced | 0 | 42 | 4 | 490 | 0% |
| restaurant-reservation-system | Beginner | 0 | 30 | 9 | 498 | 0% |
| ecommerce-store | Intermediate | 1 | 28 | 2 | 506 | 3% |
| multi-tenant-crm | Intermediate | 0 | 24 | 1 | 506 | 0% |
| ecommerce-store | Beginner | 0 | 23 | 15 | 496 | 0% |
| restaurant-reservation-system | Intermediate | 0 | 20 | 9 | 508 | 0% |
| online-learning-platform | Beginner | 0 | 18 | 2 | 516 | 0% |
| online-learning-platform | Intermediate | 0 | 7 | 1 | 527 | 0% |
| job-board | Beginner | 0 | 5 | 0 | 531 | 0% |
| multi-tenant-crm | Beginner | 0 | 5 | 3 | 518 | 0% |
| job-board | Intermediate | 0 | 1 | 0 | 536 | 0% |
