GPT Image 2.5 vs earlier GPT Image vs Nano Banana

Compare evidence, editing workflows and output requirements without treating a showcase as a benchmark.

Official descriptions

OpenAI describes 2.5 as improving detail and multi-step edits over Images 2.0. Flare and Sunburst are separate API variants; a ChatGPT web label does not identify the variant. OpenAI · 2026-09-08

Nano Banana is a family name. This page uses Nano Banana 2 (Gemini 3.1 Flash Image) as its Google reference; the original, Pro and Lite should not be merged into one score. Google · 2026-02-26

Our actual evidence

Our examples were generated on ChatGPT web on September 14, 2026. We did not repeat these prompts on earlier GPT Image or Nano Banana, so they establish neither a winner nor comparative speed or cost.

A repeatable comparison

Use the same source image, full prompt, dimensions and number of attempts. Record the exact model, interface, date, latency and actual bill. Keep all attempts, including failures; compare results blind before choosing.

What to inspect

Identity: compare face, wrists and shoe contact points. Layout: count panels and labels. Materials: inspect reflections and fine edges. Transparency: check the downloaded alpha channel, not a checkerboard drawn into the image.

Try our real examples

A sequence of still images is not native video, and a transparent PNG is not a layered PSD. Our verified cutout has alpha; that does not prove identical support in every API channel.

Labeled espresso machine cutaway

Preview created with ChatGPT Images 2.5 on the web; regeneration uses the model currently configured on this site.

Original generation prompt (English)

Design a portrait educational cutaway of a fictional automatic espresso machine on an ivory background. Separate the bean route from the water route using brown and blue arrows. Include exactly these six labels: "BEANS", "GRINDER", "WATER TANK", "HEATER", "BREW GROUP", "CUP". Show a readable left-to-right brewing sequence, copper mechanisms and restrained teal accents. No brand marks.

Same-model outfit and scene variations

Preview created with ChatGPT Images 2.5 on the web; regeneration uses the model currently configured on this site.

Original generation prompt (English)

Edit the approved model photograph into a tailored cobalt-blue trouser suit over an ivory crew-neck T-shirt in a contemporary pale-stone gallery. Preserve identity, expression, head center, shoulder line, hands, hips, knees, subject scale and position, camera, crop and the original white shoes. Fit the clothing to the existing pose. Adjust only the environment and the contact shadow needed for believable placement. No re-posing, extra accessories, text or collage.

Full-body transparent model cutout

Preview created with ChatGPT Images 2.5 on the web; regeneration uses the model currently configured on this site.

Original generation prompt (English)

Remove the background of the approved full-body model photograph. Keep the original head, fine hair edges, face, pose, outfit, hands and white shoes at the same scale and frame position. Remove the ground shadow and make the gaps around the body genuinely transparent. Return one RGBA PNG; do not draw a checkerboard or a white background.

Choose for the task

For a new workflow, compare a small representative set before committing. Reference editing, text accuracy, export format and total usable-image cost matter more than an isolated attractive sample. This page does not run other models or spend credits automatically.

Start with the configured GPT Image 2.5 generator below. Selecting a case only prepares the form.