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OpenAINotable
GPT Image 1.5
Released Dec 16, 2025
OpenAI's previous-generation image model, behind the December 2025 ChatGPT Images relaunch, with more precise edits and better instruction following.
- Price per image
- $0.13
- Max resolution
- 1536x1024
- AA arena Elo
- 1109
- LMArena Elo
- 1237
- Capabilities
- text to image, editing, inpainting, text rendering
- Licence
- Proprietary
Strengths & weaknesses
Strengths
- Precise edits that keep details intact
- Text rendering called out as an improvement at launch
- OpenAI said ChatGPT images generated up to 4x faster
Weaknesses
- Only three output sizes (1024x1024, 1024x1536, 1536x1024)
- Superseded twice (GPT Image 2, then 2.5)
Included only because it is #10 on AA (high setting). It is #17 on LMArena ("gpt-image-1.5-high-fidelity"). OpenAI calls it "our previous image generation model" but has published no deprecation date. maxResolution is the largest listed size, since no explicit maximum is published.
Links
API model strings
- openai
gpt-image-1.5 - openai
gpt-image-1.5-2025-12-16