Image2 vs Flare vs Sunburst：同 prompt 速度与成片对打

Prompt

GPT Image 2 vs GPT Image 2.5 Flare vs GPT Image 2.5 Sunburst:

We ran the same prompts through all three models to see what the 2.5 upgrade actually changes.

Here are the results.

Speed:

Flare is the fastest by a wide margin. It finished about 2.3x faster than GPT Image 2 and about 1.8x faster than Sunburst. Sunburst was still around 1.3x faster than GPT Image 2.

Image quality:

Sunburst came out on top, with more natural lighting and slightly fewer AI hallucinations. Flare's quality is close to GPT Image 2, with a big speed advantage.

Editing:

Editing is where 2.5 is supposed to improve the most, so we gave each model the same image and asked for several edits in a row. All three models handled the first edits well and kept the rest of the image consistent.

The differences showed up in the final edit:

• GPT Image 2 had a clear placement error.
• Flare had a small blending issue.
• Sunburst got everything right.

Pricing:

Both 2.5 models cost the same per token as GPT Image 2.

Which one to use:
• Flare for fast results and lots of variations.

• Sunburst for the best lighting and for images that need several rounds of edits.

Attribution

Author

BLOCKLORDS

Published

2026-09-18

Original post

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Collected from

xianyu110/awesome-gpt-image2.5 · 2100812069385932848 · MIT