Introducing ChatGPT Images 2.5
ChatGPT Images 2.5 helps turn your ideas, sketches, and reference photos into more personalized, polished images that better reflect your ideas.
OpenAI has unveiled the latest iteration of its image generation models, ChatGPT Images 2.5. The new release boasts enhanced instruction-following capabilities, allowing for multiple turns of interaction, faster response times, and improved preservation of subjects from reference photos. Two new model IDs have been introduced to the API: gpt-image-2.5-sunburst and gpt-image-2.5-flare.
Sunburst is reportedly the superior choice for workflows that require editing precision, while Flare is best suited for fast, high-quality everyday image generation.
The upgrades were tested using a CLI tool, openai_image.py, which now supports the inclusion of reference images. This enables the generation of images based on a prompt and one or more reference photos. For instance, a raccoon scientist studying a chart was successfully added to an original image through this method.
Simon Willison, a tech blogger, shared his experience with the new models on September 8th, 2026. He offered a way for readers to support his work, suggesting a $10 monthly contribution for a curated email digest of the most important developments in large language models (LLMs).
Written by urgent.news from Simon Willison's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
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- Introducing ChatGPT Images 2.5 simonwillison.net
- Introducing ChatGPT Images 2.5 openai.com
