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Large Language ModelsImage GenerationOpenAI BlogPublished: Sep 9, 2026, 04:00 JST2 min read

OpenAI Unveils ChatGPT Images 2.5

OpenAI Unveils ChatGPT Images 2.5

3 Key Points

  1. What happened

    OpenAI launched ChatGPT Images 2.5, a new image model rolling out today to all ChatGPT, ChatGPT Work, and Codex users across all tiers.

  2. Why it matters

    The new model cuts image generation latency by up to 50% and improves editing precision, multi-turn consistency, and reference photo fidelity, replacing the previous Images 2.0.

  3. What to watch

    New API models GPT‑Image‑2.5 Sunburst and GPT‑Image‑2.5 Flare target different workflows; Sunburst offers extra precision for detailed work. Whether Sunburst justifies its longer generation times for creative teams remains the key question.

WHO IT HITSDesigners and creative teams using ChatGPT can now sketch ideas directly. Developers building image workflows for marketing and retail products get two new API models with better control, but Sunburst users must accept longer generation times.

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Context & Analysis

OpenAI states that every week, people create more than 3 billion images across ChatGPT Images and the GPT-Image models in the API. This scale suggests that the tool is already an important part of many creative workflows, and the new release is aimed directly at making that process more efficient and more controllable.

The announcement positions ChatGPT Images 2.5 as a major update, with a series of improvements that directly address common frustrations. The speed increase and better reference fidelity are likely to matter for professionals in marketing and product design who need consistent visuals. The Sketch feature signals a move to broaden access, allowing users without technical drawing skills to guide the model visually, lowering the barrier to producing a specific, desired image.

The new API models indicate that OpenAI sees the developer ecosystem as a key growth area. The distinction between Flare for speed and Sunburst for precision suggests a deliberate effort to serve both high-volume production and premium design-focused applications. The success of this launch may hinge on whether the Sunburst model's extra precision proves worth the longer generation time for businesses with complex visual requirements.

FAQ
What is the new Sketch feature?
Sketch lets you draw directly in ChatGPT as a reference, and ChatGPT turns your rough art into a complete image. Type '@Sketch' in ChatGPT to try it.
How fast is ChatGPT Images 2.5 compared to the previous version?
Image generation latency has been reduced by up to 50% compared with Images 2.0.
What are the two new API models?
GPT‑Image‑2.5 Flare is the default choice, and GPT‑Image‑2.5 Sunburst offers extra precision for detailed creative work with longer generation times.

Also reported by ITmedia AI+, SiliconANGLE AI, Simon Willison's Weblog

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