Get Image Models — VisionStory API

Machine-readable capabilities of available image models: aspect ratios, resolutions, reference image limits, and credit_per_image (same price as the web product).

Headers

X-API-Keystringrequired

Your VisionStory API key (sk-vs-...), kept server-side. Create or manage keys in API keys (Pro plan and up).

Responses

200Successful Response

application/json

dataGetImageModelsResponse | nullrequirednullable

The endpoint payload. Its shape is specific to each endpoint (see that endpoint's response schema); null for operations that return no body, such as delete.

modelsobject[]required

Machine-readable model capabilities, including credit_per_image

messagestring

Human-readable status message; "success" on a successful call.

Default: success

server_timestring · date-timerequired

Server-side timestamp when the response was produced, in ISO 8601 format (UTC).

defaultError response. All failures share one envelope: an error object with a numeric code, a human-readable message, an optional details string, and an optional hint giving an actionable next step (useful for AI agents).

application/json

errorErrorDetailrequired

codeintegerrequired

Machine-readable error code. Mirrors the HTTP status for transport-level failures (e.g. 401, 404, 422, 500) and may carry a business-specific code otherwise.

detailsstring | nullnullable

Optional structured detail about the failure, e.g. a JSON string of per-field validation errors on a 422. Absent when there is nothing extra to report.

hintstring | nullnullable

Actionable next step for resolving the error, written for both humans and AI agents (e.g. how to fix the request, or where to obtain an API key). May be absent.

messagestringrequired

Human-readable explanation of what went wrong. Safe to log or surface to end users; not localized.

import os import requests response = requests.get( "https://openapi.visionstory.ai/api/v1/image/models", headers={"X-API-Key": os.environ["VISIONSTORY_API_KEY"]}, ) response.raise_for_status() print(response.json())

{ "data": { "models": [ { "model_id": "nano-banana", "description": "Fast and economical general-purpose image generation.", "credit_per_image": 1, "params": { "prompt": { "max_length": 5000 }, "aspect_ratio": { "values": [ "1:1", "2:3", "3:2", "3:4", "4:3", "4:5", "5:4", "9:16", "16:9", "21:9" ], "default": "1:1" }, "resolution": { "values": [ "1K", "2K" ], "default": "1K" }, "refs": { "max": 4, "accept": [ "image" ] } } }, { "model_id": "nano-banana-2", "description": "Balanced quality and speed, strong instruction-following edits.", "credit_per_image": 2, "params": { "prompt": { "max_length": 5000 }, "aspect_ratio": { "values": [ "1:1", "2:3", "3:2", "3:4", "4:3", "4:5", "5:4", "9:16", "16:9", "21:9" ], "default": "1:1" }, "resolution": { "values": [ "1K", "2K" ], "default": "1K" }, "refs": { "max": 4, "accept": [ "image" ] } } }, { "model_id": "nano-banana-pro", "description": "Highest quality tier, best for detailed scenes; supports 2K output.", "credit_per_image": 3, "params": { "prompt": { "max_length": 5000 }, "aspect_ratio": { "values": [ "1:1", "2:3", "3:2", "3:4", "4:3", "4:5", "5:4", "9:16", "16:9", "21:9" ], "default": "1:1" }, "resolution": { "values": [ "1K", "2K" ], "default": "1K" }, "refs": { "max": 4, "accept": [ "image" ] } } } ] }, "server_time": "2026-08-24T08:00:00Z", "message": "success" }