OpenAI brings transparent background generation to GPT-Image-2 API in preview

On August 21, OpenAI officially announced a preview of transparent background generation in the GPT-Image-2 API, allowing developers to create reusable assets without post-processing. Users have since reported signs that the capability may be reaching ChatGPT's consumer side, though without official confirmation.

Confirmed

OpenAI (@OpenAIDevs, relayed by @romainhuet, @jxnlco, @chrisfirst and others) announced that the GPT-Image-2 API preview supports generating transparent-background images, directly callable at the API level.
Official use cases include product assets, graphic design, website mockups, slides, games, and marketing materials; @romainhuet noted images can be used directly in websites and games without post-processing, and @codestantine shared concrete examples.

Unconfirmed

User @Angaisb observed that transparent-background requests in ChatGPT appear to have been switched from GPT Image 1.5 to GPT Image 2, based on the texture and characteristics of generated images; OpenAI's blog does not mention this change, so it remains user inference.
On August 22, @BLCNYY claimed ChatGPT can now generate transparent-background images in conversations; if true, the capability has extended from API to consumers, but the claim is vague and its rollout scope unclear.

Why it matters

Transparent backgrounds are a high-frequency need in design, e-commerce, and marketing; native support eliminates cutout work and lets creators composite subjects onto any background, greatly improving workflow efficiency.
It also suggests GPT-Image-2 is gradually reaching ChatGPT's consumer side—if confirmed, ordinary users would benefit from the stronger image generation model.

2026-08-21 ~ 2026-08-22 · 8 related posts

Primary sources

OpenAI API adds transparent background generation to GPT-Image-2 — OpenAIDevs · 2026-08-21 04:30 (UTC+08:00)
OpenAI API adds transparent background generation to GPT-Image-2 — romainhuet · 2026-08-21 07:32 (UTC+08:00)
User Spots ChatGPT Possibly Using GPT Image 2 for Transparent Backgrounds — Angaisb_ · 2026-08-21 05:31 (UTC+08:00)

[source] OpenAI API adds transparent background generation to GPT-Image-2 — OpenAIDevs · 2026-08-21
[source] User Spots ChatGPT Possibly Using GPT Image 2 for Transparent Backgrounds — Angaisb_ · 2026-08-21
ChatGPT likely upgraded to GPT Image 2 for transparency support — Angaisb_ · 2026-08-21
OpenAI adds transparent background generation to DALL-E 3 API — athyuttamre · 2026-08-21
ChatGPT Adds Transparent Background Generation — BLCNYY · 2026-08-22

3 near-duplicate retellings: jxnlco · romainhuet · chrisfirst