GPT Image 2.5 Sunburst Image to Image Generator - Image Generation AI Tool | Free Online

GPT Image

GPT Image is OpenAI's flagship image generation model for high-quality image creation and precise image editing, with strong instruction following and improved text rendering.

text-to-image

image-to-image

v2-text-to-image

v2-image-to-image

2.5 Flare T2I

2.5 Flare I2I

2.5 Sunburst T2I

2.5 Sunburst I2I

GPT Image 2.5 Sunburst · Image to Image

Result

Configure and click Generate.

🌟 GPT Image v2 & 2.5 · Modern Generation · Six Workflows

🌤️ GPT Image 2.5 Sunburst Image to Image

Composite and restyle up to 16 optional references with the Sunburst model. Same control surface as Sunburst T2I: 13 ratios, required 1K–4K resolution, and background only at 1K.

What is GPT Image 2.5 Sunburst Image to Image?

GPT Image 2.5 Sunburst Image to Image on FuseAITools (gpt-image-2-5-sunburst-image-to-image) takes a required prompt plus up to 16 optional reference URLs and returns a Sunburst-styled edit. Same ratio set, resolution-billed pricing, and 1K-only background option as the other 2.5 workflows.

🌟 GPT Image v2 & 2.5 on FuseAITools

GPT Image on FuseAITools covers OpenAI's v2 and 2.5 Flare / Sunburst image models, all with 20000-character prompt capacity and selectable 1K/2K/4K resolution as the billing tier. The 2.5 families expand framing to 13 aspect ratios and add an optional background control at 1K, while image-to-image accepts up to 16 reference images. New users receive 20 free credits on sign-up.

✨ GPT Image v2 & 2.5 Core Features

20000-Character Prompts

Dramatically increased prompt capacity from v1.5—write detailed scene descriptions, multi-paragraph instructions, or storyboard treatments that the model follows with precision.

1K / 2K / 4K Resolution

Select your output resolution: 1K for fast drafts, 2K for standard quality, or 4K for maximum detail. Credit costs scale with resolution: 6 / 9 / 12 respectively.

Six Aspect Ratios + Auto

Choose from auto, 1:1, 9:16, 16:9, 4:3, 3:4—covers everything from vertical social posts to cinematic landscape framing. The "auto" option optimizes framing for your content.

13 Ratios on 2.5 Flare / Sunburst

The 2.5 models add 3:2, 2:3, 21:9, 27:16, 16:27, 9:8, 8:9 to the v2 set—13 aspect ratios in total. The four extreme ratios are gated to 1K and are disabled in the form at 2K / 4K.

Background Control at 1K

2.5 Flare and Sunburst accept an optional transparent / opaque / auto background, making cut-out-ready assets without a separate matting step. Only available at 1K; unset it to keep the server default.

Multi-Reference Editing (≤16)

Upload up to 16 images in the I2I workflow and prompt GPT Image v2 to fuse visual elements from all references into a single coherent generation.

🎯 Built for These Scenarios

Long-form creative & storytellingHigh-resolution print assetsCinematic & ultra-wide bannersMulti-reference style fusionTransparent-background product cut-outsSocial & marketing content at scale

❓ FAQ (GPT Image v2 & 2.5)

What inputs does 2.5 Sunburst image-to-image need?

A required prompt (≤20000 chars), a required resolution tier (1K / 2K / 4K), an optional aspect ratio (13 choices, default auto), and an optional list of up to 16 reference image URLs.

Why does my background option disappear when I change resolution?

Do I need a local GPU for GPT Image v2?

How is GPT Image v2 priced on FuseAITools?

What is the difference between GPT Image v2 and the 2.5 Flare / Sunburst models?

⚙️ GPT Image v2 & 2.5 Technical Specs

Parameters below match the FuseAITools GPT Image form and API (gpt-image-2-* and gpt-image-2-5-* models).

Workflow	Input	Aspect ratios	Resolution & credits	Key controls
v2 Text to Image	Prompt ≤20000 chars	auto, 1:1, 9:16, 16:9, 4:3, 3:4	1K 6 / 2K 9 / 4K 12	Prompt + resolution + aspect ratio
v2 Image to Image	Up to 16 image URLs + prompt ≤20000 chars	auto, 1:1, 9:16, 16:9, 4:3, 3:4	1K 6 / 2K 9 / 4K 12	Prompt + resolution + aspect ratio + up to 16 reference images
2.5 Flare Text to Image	Prompt ≤20000 chars (required)	13 ratios: auto, 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16, 21:9, 27:16, 16:27, 9:8, 8:9	1K / 2K / 4K — resolution is the billing tier	Prompt + resolution + 13 ratios + background (1K only)
2.5 Flare Image to Image	Up to 16 image URLs (optional) + prompt ≤20000 chars	Same 13 ratios as Flare T2I	1K / 2K / 4K — resolution is the billing tier	Prompt + resolution + 13 ratios + background (1K only) + ≤16 references
2.5 Sunburst Text to Image	Prompt ≤20000 chars (required)	13 ratios, incl. ultra-wide 21:9 / 27:16 / 16:27 and 9:8 / 8:9	1K / 2K / 4K — resolution is the billing tier	Prompt + resolution + 13 ratios + background (1K only)
2.5 Sunburst Image to Image	Up to 16 image URLs (optional) + prompt ≤20000 chars	Same 13 ratios as Sunburst T2I	1K / 2K / 4K — resolution is the billing tier	Prompt + resolution + 13 ratios + background (1K only) + ≤16 references

v2: "auto" requires 1K and 1:1 does not support 4K. 2.5 Flare / Sunburst: resolution (1K / 2K / 4K) is required and is the billing tier; the ratios 27:16, 16:27, 9:8, 8:9 and the optional background (transparent / opaque / auto) are only supported at 1K. Image inputs: JPEG, PNG, WebP (max 10MB each, up to 16) in the I2I workflows.