Question 1

Is this really free with no limits?

Accepted Answer

Yes. You need a free account to use the tool (we sign in with Google), but there is no daily cap, no credit charge, and no paywall. This is our only permanently free tool — the provider cost is low enough that we can sustainably give it away as a gift to the community.

Question 2

What is the prompt actually used for?

Accepted Answer

Most people use reverse prompting in one of three ways. First, to reproduce an image they liked with a different AI model. Second, to understand what makes a prompt work by studying how well-composed images get described. Third, to create variations of a reference — get the prompt, tweak it, generate something new from the same DNA.

Question 3

Which model powers the analysis?

Accepted Answer

We use Gemini 2.0 Flash from Google. It is purpose-built for fast vision tasks and produces prompts that are noticeably more specific and prompt-friendly than generic caption models. It also handles style, composition, and lighting terminology better than older LLMs.

Question 4

How are the prompts tuned for different platforms?

Accepted Answer

Each target platform uses a different system instruction. Midjourney gets comma-separated phrases and weight hints. Stable Diffusion gets booru-style tag clusters. Flux gets natural but precise prose. GPT-Image / DALL·E gets clear full sentences. Generic is a safe middle ground when you do not know the target.

Question 5

How accurate is the description?

Accepted Answer

Very accurate for the visible content — the model describes what it sees, not what it imagines. It will not invent details that are not actually in the image. That said, very abstract or ambiguous images get less useful prompts because there is less to describe. Detail level Detailed captures the most nuance.

Question 6

Can I generate prompts in my native language?

Accepted Answer

Yes. Pick a language from the dropdown and the output will be in that language. Currently supported: English, Chinese, Japanese, Korean, Spanish, French, German. Note that some image generation models only accept English prompts — useful to generate in English even if your UI is in another language.

Question 7

Will my uploaded images be private?

Accepted Answer

Yes. Your uploads are stored in your private account workspace and are never shared or used for training. Gemini receives the image as an inline payload to generate the prompt, but Google does not retain it after the request. You can delete any upload at any time.

Question 8

Does it work on non-photo images?

Accepted Answer

Yes — illustrations, 3D renders, pixel art, logos, screenshots all work. The only content it struggles with is intentionally abstract or extremely low-detail images, because there is little to describe. Try the Detailed level for unusual inputs to squeeze out as much structure as possible.

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Three detail levels

Multilingual output

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