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GPT-5 Image, Mini and 5.4 Image 2: a review of OpenAI's image models

Alen founder of KADR Updated 2026-10-22 4 min read

OpenAI's image line (GPT-5 Image, GPT-5 Image Mini, GPT-5.4 Image 2, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst) stands out because it understands complex text descriptions better than most: it parses a long prompt with details, logic and text inside the picture more precisely than its competitors. Prices on KADR vary a lot: from 2 tokens for GPT-5.4 Image 2 and GPT Image 2.5 Flare at low quality to 29 for GPT-5 Image. A special feature: GPT-5.4 Image 2 and both GPT Image 2.5 models are priced by quality, so low, medium and high cost different amounts. Below we look at how the versions differ and when to take which.

What OpenAI’s image line is

OpenAI, the makers of ChatGPT, also build image models. KADR has five: GPT-5 Image, GPT-5 Image Mini, GPT-5.4 Image 2 and, since October 2026, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst. Flare costs 2, 5 and 19 tokens for low, medium and high quality, Sunburst costs 3, 6 and 25.

The line’s overall character: it understands complex descriptions better than most competitors. If you have a long prompt with details, conditions and logic («the man on the left holds a red book, there are three objects on the table, rain outside the window»), OpenAI’s models parse it more precisely. They also handle text inside the image more confidently.

Five versions and their prices

Version Price per image Feature
GPT-5.4 Image 2 2 / 6 / 17 tokens (~3 / 9 / 27 rubles) low / medium / high quality
GPT Image 2.5 Flare 2 / 5 / 19 tokens (~3 / 8 / 30 rubles) low / medium / high quality
GPT Image 2.5 Sunburst 3 / 6 / 25 tokens (~5 / 9 / 40 rubles) low / medium / high quality
GPT-5 Image Mini 7 tokens (~11 rubles) budget, simple tasks
GPT-5 Image 29 tokens (~46 rubles) flagship, maximum quality

This is not a public offer. KADR prices, October 2026.

The GPT-5.4 Image 2 trick: pay by quality

This model (like the two GPT Image 2.5 models) has something the older versions do not: three quality levels at different prices. Roughly (KADR data):

  • low about 2 tokens,
  • medium about 6 tokens,
  • high about 17 tokens.

It is convenient. You literally pay for the level you need: drafts and tests on low for pennies, the final shot on high. No need to overpay for quality that does not matter at the selection stage.

Where OpenAI’s line beats the competition

The three main image models have different roles:

  • GPT-5 Image is understanding complex descriptions and text.
  • Flux.2 is pure photorealism from scratch.
  • Nano Banana Pro is editing existing photos.

The practical takeaway: if the prompt is long and precision matters (exactly these objects, in exactly this arrangement, with this text), take OpenAI’s models. If you just need a nice, simpler realistic picture, Flux is cheaper and will cope. If you need to change an existing photo, that is Nano Banana.

How to choose a version

GPT-5.4 Image 2 is the most flexible option: thanks to quality-based pricing you pay exactly as much as you need. Good as a workhorse.

GPT-5 Image Mini is for simple tasks where complex understanding is not needed but cheaper volume is.

GPT-5 Image is the flagship for complex, important shots where maximum prompt adherence matters. But it is the most expensive image model in the line (46 rubles), so do not burn it on drafts.

About text in the image

OpenAI’s models handle text inside an image reasonably well, better than average. But Cyrillic, as with everyone, is weaker than Latin script. For guaranteed readable Russian text it is more reliable to generate the image without a caption and add the text in an editor, or to use Nano Banana Pro, which handles short Cyrillic captions cleanly. More in the article on product cards, where this problem is covered.

Who it suits

Suits: complex scenes that must follow a long description precisely, images with text, tasks where compositional logic matters.

Not the main choice: simple photorealism (Flux is cheaper) and edits to existing photos (Nano Banana is better).

In short

OpenAI’s image line is strong at understanding complex prompts and text. Five versions: GPT-5.4 Image 2 with flexible pay-by-quality pricing, the newer GPT Image 2.5 Flare and Sunburst priced the same way, Mini for simple tasks, GPT-5 Image as the expensive flagship. Take them when precision and details in the prompt matter, and for pure photorealism or editing there are more specialised and cheaper models.

Frequently asked questions

What is GPT-5 Image?
It is an image generation model from OpenAI, the makers of ChatGPT. Its strength is understanding complex text descriptions: it parses long, detailed prompts more precisely than competitors and handles text inside the picture better.
How much does GPT-5 Image cost?
On KADR: GPT-5.4 Image 2 from 2 tokens (about 3 rubles at low quality), 6 tokens (about 9 rubles) at medium; GPT Image 2.5 Flare 2, 5 or 19 tokens and GPT Image 2.5 Sunburst 3, 6 or 25 tokens depending on quality; GPT-5 Image Mini 7 tokens (about 11 rubles), GPT-5 Image 29 tokens (about 46 rubles) per image (October 2026).
How do GPT-5 Image, Mini and 5.4 Image 2 differ?
GPT-5 Image is the senior version with maximum quality and understanding of complex prompts, but it is the most expensive. Mini is the budget option for simple tasks. GPT-5.4 Image 2 is a newer model with flexible pricing depending on quality (low, medium, high). GPT Image 2.5 Flare and Sunburst are the newest models (October 2026), also priced by quality.
How does quality-based pricing work on GPT-5.4 Image 2?
This model has three quality levels, and they cost different amounts: low about 2 tokens, medium about 6, high about 17 (KADR data). So you pay for exactly the level you need: drafts on low, the final on high. GPT Image 2.5 Flare (2, 5 and 19 tokens) and Sunburst (3, 6 and 25 tokens) work the same way.
Where are OpenAI's models stronger than Flux and Nano Banana?
The GPT line's main advantage is understanding complex descriptions: if you have a long prompt with many details, conditions and text inside the picture, OpenAI's models parse it more precisely. Flux is stronger at pure photorealism, Nano Banana at editing existing photos.
What is GPT-5 Image best for?
Complex scenes that must follow the description precisely: when it matters that the frame contains exactly what you asked for, with all the details and logic. Also for images with text. For simple photorealism Flux is better value, for edits to existing photos Nano Banana.

Try OpenAI's models

GPT-5 Image, Mini, GPT-5.4 Image 2 and GPT Image 2.5 Flare and Sunburst are available on KADR alongside Flux, Nano Banana, Seedream and others. The price is shown before you start, pay in rubles, tokens never expire.

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Alen
Founder of KADR. I connected the generation models directly through their APIs, so the prices and specs in this article are working data, not a retelling.