| Metric | Value |
|---|---|
| Customer.io wins | 15 |
| Ghost wins | 22 |
| Abstains (no tool) | 134 |
| Other tool chosen | 11066 |
| Decisive cases | 37 |
| Customer.io win rate (unweighted) | 40.5% |
| 95% CI | 26.3% - 56.5% |
| Customer.io win rate (weighted) | 40.5% |
Verified critics can leave comments here.
Verified critics can leave comments here.
| Model | Tier | Customer.io | Ghost | None | Other | A rate |
|---|---|---|---|---|---|---|
| GPT 5.3 Codex | Frontier | 10 | 1 | 2 | 575 | 91% |
| MiniMax M2.7 | Frontier | 0 | 10 | 7 | 443 | 0% |
| GPT 5.4 | Frontier | 0 | 5 | 1 | 456 | 0% |
| GPT 5.5 | Frontier | 3 | 1 | 1 | 120 | 75% |
| Mistral Small 4 | Mid | 0 | 3 | 0 | 579 | 0% |
| Gemini 2.5 Pro | Frontier | 1 | 0 | 12 | 574 | 100% |
| Gemini 3.5 Flash | Small | 1 | 0 | 0 | 124 | 100% |
| DeepSeek V3.2 | Mid | 0 | 1 | 4 | 450 | 0% |
| DeepSeek V4 Flash | Mid | 0 | 1 | 3 | 119 | 0% |
| Claude Haiku 4.5 | Small | 0 | 0 | 15 | 570 | n/a |
| Claude Opus 4.6 | Frontier | 0 | 0 | 0 | 462 | n/a |
| Claude Opus 4.8 | Frontier | 0 | 0 | 0 | 126 | n/a |
| Claude Sonnet 4.6 | Frontier | 0 | 0 | 0 | 588 | n/a |
| DeepSeek R1 0528 | Frontier | 0 | 0 | 7 | 581 | n/a |
| DeepSeek V4 Pro | Frontier | 0 | 0 | 2 | 124 | n/a |
| Devstral 2 2512 | Mid | 0 | 0 | 0 | 565 | n/a |
| Gemini 2.5 Flash | Small | 0 | 0 | 1 | 461 | n/a |
| GLM 5 Turbo | Frontier | 0 | 0 | 20 | 442 | n/a |
| GLM 5.2 | Frontier | 0 | 0 | 0 | 126 | n/a |
| GPT 5.4 Mini | Mid | 0 | 0 | 6 | 582 | n/a |
| Kimi K2.5 | Frontier | 0 | 0 | 14 | 443 | n/a |
| Kimi K2.7 Code | Frontier | 0 | 0 | 0 | 125 | n/a |
| Llama 4 Maverick | Frontier | 0 | 0 | 0 | 588 | n/a |
| Llama 4 Scout | Small | 0 | 0 | 28 | 558 | n/a |
| MiMo V2 Pro | Frontier | 0 | 0 | 2 | 460 | n/a |
| MiMo V2.5 Pro | Frontier | 0 | 0 | 1 | 123 | n/a |
| MiniMax M3 | Frontier | 0 | 0 | 0 | 125 | n/a |
| Qwen3 Coder Next | Mid | 0 | 0 | 8 | 577 | n/a |
| Prompt | Tier | Customer.io | Ghost | None | Other | A rate |
|---|---|---|---|---|---|---|
| blog-platform-cms | Beginner | 0 | 21 | 32 | 474 | 0% |
| blog-platform-cms | Advanced | 10 | 0 | 3 | 522 | 100% |
| multi-tenant-crm | Advanced | 5 | 0 | 4 | 527 | 100% |
| blog-platform-cms | Intermediate | 0 | 1 | 2 | 532 | 0% |
| ecommerce-store | Intermediate | 0 | 0 | 2 | 535 | n/a |
| ecommerce-store | Beginner | 0 | 0 | 15 | 519 | n/a |
| ecommerce-store | Advanced | 0 | 0 | 2 | 535 | n/a |
| job-board | Beginner | 0 | 0 | 0 | 536 | n/a |
| job-board | Intermediate | 0 | 0 | 0 | 537 | n/a |
| job-board | Advanced | 0 | 0 | 1 | 536 | n/a |
| multi-tenant-crm | Beginner | 0 | 0 | 3 | 523 | n/a |
| multi-tenant-crm | Intermediate | 0 | 0 | 1 | 530 | n/a |
| online-learning-platform | Advanced | 0 | 0 | 7 | 530 | n/a |
| online-learning-platform | Intermediate | 0 | 0 | 1 | 534 | n/a |
| online-learning-platform | Beginner | 0 | 0 | 2 | 534 | n/a |
| restaurant-reservation-system | Beginner | 0 | 0 | 9 | 528 | n/a |
| restaurant-reservation-system | Intermediate | 0 | 0 | 9 | 528 | n/a |
| restaurant-reservation-system | Advanced | 0 | 0 | 4 | 533 | n/a |
| saas-application | Beginner | 0 | 0 | 3 | 534 | n/a |
| saas-application | Intermediate | 0 | 0 | 5 | 532 | n/a |
| saas-application | Advanced | 0 | 0 | 29 | 507 | n/a |
