# uv 100

Published articles for uv 100.

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## Introducing ChatGPT Images 2.5

DevFeed: [Introducing ChatGPT Images 2.5](<https://devfeed.tech/articles/introducing-chatgpt-images-2-5-31183.md>)

Original publisher: [Read original article](<https://simonwillison.net/2026/Sep/8/introducing-chatgpt-images-25/>)

Author: Simon Willison

Published: 2026-09-08T22:46:33Z

Content type: release

Language: en

Sources: [Simon Willison's Weblog](<https://devfeed.tech/sources/simon-willison-s-weblog.md>)

Topics: [ChatGPT](<https://devfeed.tech/topics/chatgpt.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [Generative AI](<https://devfeed.tech/topics/generative-ai.md>), [text-to-image](<https://devfeed.tech/topics/text-to-image.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-2-236](<https://devfeed.tech/tags/ai-2-236.md>), [chatgpt](<https://devfeed.tech/tags/chatgpt.md>), [generative-ai](<https://devfeed.tech/tags/generative-ai.md>), [generative-ai-1-982](<https://devfeed.tech/tags/generative-ai-1-982.md>), [openai](<https://devfeed.tech/tags/openai.md>), [openai-463](<https://devfeed.tech/tags/openai-463.md>), [text-to-image](<https://devfeed.tech/tags/text-to-image.md>), [text-to-image-47](<https://devfeed.tech/tags/text-to-image-47.md>), [tools](<https://devfeed.tech/tags/tools.md>), [tools-78](<https://devfeed.tech/tags/tools-78.md>), [uv](<https://devfeed.tech/tags/uv.md>), [uv-100](<https://devfeed.tech/tags/uv-100.md>)

### AI overview

OpenAI's ChatGPT Images 2.5 release adds improved multi-turn instruction following, faster responses, and better preservation of subjects in reference photos. The API introduces the gpt-image-2.5-sunburst and gpt-image-2.5-flare model IDs, with Sunburst positioned for precise editing and Flare for faster everyday generation.

### Source excerpt

Introducing ChatGPT Images 2.5 OpenAI's image generation models are apparently used "more than 3 billion images across ChatGPT Images and the GPT-Image models in the API". This latest release improves their instruction-following ability across multiple turns, responds faster, and "is better at preserving the subjects in your reference photos". There are two new model IDs in the API: gpt-image-2.5-sunburst and gpt-image-2.5-flare. Based on this I think Sunburst is the stronger option: Choose Sunburst for workflows where editing precision matters most, and Flare for fast, high-quality everyday image generation. I upgraded my openai_image.py CLI tool to support passing in one or more reference images, so now this works: uv run https://tools.simonwillison.net/python/openai_image.py \ 'add a raccoon scientist studying the chart thoughtfully' \ -i https://static.simonwillison.net/static/2026/openai-agent-usage.webp \ -m gpt-image-2.5-sunburst This is the original image, and here's what I got back from that prompt to "add a raccoon scientist studying the chart thoughtfully": Tags: tools, ai, openai, generative-ai, uv, text-to-image