GPT Image 1 vs GPT Image 1.5
AA Image Arena · text-to-image v2.1 AA Image Arena · text-to-image v2.1: People compare two generated images for the same prompt and pick the better one; wins become an Elo score
GPT Image 11,013
GPT Image 1.51,123
AA Image Arena · editing v2.1 AA Image Arena · editing v2.1: Same as the image arena, but for editing an existing image
GPT Image 1997
GPT Image 1.51,119
Arena Image Editing · overall Arena Image Edit · overall: Human pairwise preferences in the stated image edit vote pool
GPT Image 11,138.7
GPT Image 1.5—
Arena Text-to-Image · overall Arena Text To Image · overall: Human pairwise preferences in the stated text to image vote pool
GPT Image 11,115.6
GPT Image 1.5—
Arena Image · Text rendering People compare generated images for text rendering in the Arena text-rendering prompt pool; this is preference, not OCR exact-match accuracy
GPT Image 11,114.5
GPT Image 1.5—
| Benchmark | GPT Image 1 | GPT Image 1.5 |
|---|---|---|
| AA Image Arena · text-to-image v2.1 | 1,013 | 1,123 |
| AA Image Arena · editing v2.1 | 997 | 1,119 |
| Arena Image Editing · overall | 1,138.7 | — |
| Arena Text-to-Image · overall | 1,115.6 | — |
| Arena Image · Text rendering | 1,114.5 | — |
Specs
| Spec | GPT Image 1 | GPT Image 1.5 |
|---|---|---|
| Price | !$0.17 | !$0.13 |
| Weights | Closed | Closed |
| Released | Apr 2025 | Dec 2025 |
| Edits photos | Yes | Yes |
| Max output | 1024x1024 | 1024x1024 |
| Reference images | Yes | Yes |
What breaks when you switch
GPT Image 1 → GPT Image 1.5
Nothing known.
GPT Image 1.5 → GPT Image 1
Nothing known.