Seedream 5.5 vs GPT Image: A Same-Prompt Perfume Photo Test

Two image generators received the same brief for an unbranded perfume product photo. Both samples show amber liquid, thick glass, and a reflection on dark marble. The clearest differences in this pair are where the bottle sits and what appears in the exported image.

Test setup

The Seedream 5.5 sample came from Jimeng, and the GPT Image sample came from ChatGPT. Both runs used the same English prompt below. The ChatGPT run used text input only. Jimeng’s reference-image settings and the exact GPT Image variant are unverified.

The Jimeng export measures 1,536 × 1,536 pixels and the ChatGPT export measures 1,254 × 1,254 pixels. Both are square and below the requested 2K resolution. The images shown here are WebP copies of those exports at the original pixel dimensions, with no cropping or upscaling. The evaluation covers visible prompt adherence and composition.

Seedream 5.5 via Jimeng, 1,536 × 1,536 pixels.

GPT Image via ChatGPT, 1,254 × 1,254 pixels.

Evaluation criteria and results

• Complete framing. The stopper, shoulders, and base are all visible. Both samples pass.

• Bottle position. The brief calls for a bottle slightly right of center. The Jimeng sample is nearly centered. The GPT Image sample is visibly right of center.

• Unbranded front. Both bottle fronts are bare glass with no label or lettering.

• Materials. Both samples show amber liquid, thick glass, a faceted stopper, and a gold collar.

• Lighting and smoke. Both samples show warm light from the upper left and keep smoke clear of the bottle face and stopper.

• Surface and reflection. Both samples show gold veins in the black marble and a reflection beneath the bottle.

• Export marks. The Jimeng sample has a visible watermark in its lower right corner. The GPT Image sample has no visible watermark. This export observation is separate from the bottle design.

What differs between the two images

In the Seedream 5.5 sample, droplets are concentrated on the left shoulder and near the left edge of the bottle. The camera shows more of the shoulder’s top surface, where the glass edges and liquid catch the light.

In the GPT Image sample, the bottle’s rightward placement leaves more room for the light and smoke on the left. The highlight along the right glass edge is concentrated, and the reflection extends farther down the frame. The bottle itself remains fully visible.

The GPT Image sample follows the requested bottle placement more closely in this pair. Both samples preserve the key materials and the unbranded bottle front. With one sample per system and different export sizes, the comparison is limited to this brief’s visible results.

Shared prompt

Create a photorealistic luxury fragrance product photograph in a square 1:1 composition at native 2K resolution or higher.

Place a single unbranded rectangular perfume bottle slightly right of center on polished black marble with fine gold veining. The bottle is made of thick, clear, beveled glass and filled with deep amber perfume. Give it a wide faceted crystal stopper, seated straight and centered on a slim brushed-gold collar. Keep the bottle’s front face completely bare, with uninterrupted clear glass and no label.

Use a warm golden spotlight from the upper left and a narrow rim light from the right. Let the light pass through the amber liquid and catch the glass edges. Add a few fine condensation droplets around the shoulders and sides. Let thin wisps of amber-lit smoke curl behind and beside the bottle, leaving its front face and stopper unobstructed. Keep the background nearly black and the marble reflection directly beneath the bottle.

Frame the entire bottle with breathing room above the stopper and enough space below to show the reflection. Use a slightly low, near-frontal camera angle that reveals a narrow strip of the right side. Keep the bottle and stopper tack-sharp, with straight edges, clean glass facets, controlled highlights, and fine detail in the droplets. Keep the smoke and background softer.

The image must contain no text, letters, numbers, logos, labels, engravings, symbols, or watermarks anywhere, including on the bottle, collar, stopper, and reflection.