> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dgrid.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Format Gemini natif
> Gemini-native generateContent interface for text chat, multimodal media recognition (images, audio, video), speech synthesis, and image generation with structured parts. Use `generationConfig` to request specific response modalities such as speech (`speechConfig`) or images (`imageConfig`).
Cette page utilise la même opération `generateContent` que [Générer du contenu (Gemini)](/fr/api-reference/chat/generate-content), avec le playground ci-dessus prérempli pour un chat en texte brut. Les notes ci-dessous décrivent les champs natifs Gemini que vous pouvez ajouter à `generationConfig` pour générer ou modifier des images avec des contrôles de réponse spécifiques au fournisseur.
Définissez `generationConfig.responseModalities` sur `["IMAGE"]` pour demander une sortie image, puis utilisez `generationConfig.imageConfig` pour contrôler le ratio d'aspect et la taille de sortie.
### Champs de requête natifs Gemini
| Champ | Type | Requis | Description |
| ------------------------------------------ | ------ | ------ | --------------------------------------------------------- |
| `generationConfig.responseModalities` | array | Oui | Tableau des modalités demandées, par exemple `["IMAGE"]`. |
| `generationConfig.imageConfig` | object | Non | Objet de configuration d'image. |
| `generationConfig.imageConfig.aspectRatio` | string | Non | Ratio d'aspect de l'image générée, par exemple `1:1`. |
| `generationConfig.imageConfig.imageSize` | string | Non | Taille de sortie de l'image, par exemple `1024x1024`. |
Utilisez un modèle capable de génération d'images tel que `gemini-2.0-flash-preview-image-generation` dans le paramètre de chemin `model`.
### Exemple : générer une image
```json theme={null}
{
"contents": [
{
"role": "user",
"parts": [
{ "text": "A photorealistic image of a corgi wearing sunglasses on a beach." }
]
}
],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {
"aspectRatio": "1:1",
"imageSize": "1024x1024"
}
}
}
```
### Champs de réponse
La réponse suit la forme standard `generateContent`. Lorsqu'une sortie image est demandée, les `parts` renvoyés contiennent des données image inline :
Réponses candidates renvoyées par le modèle.
Objet de contenu généré.
Rôle renvoyé dans le bloc de contenu généré, généralement `model`.
Parts de contenu renvoyées. Pour une sortie image, chaque part contient un objet `inlineData` avec `mimeType` (par exemple `image/png`) et `data` encodé en base64.
Chaîne indiquant la raison de fin, par exemple `STOP`.
Résultats d'évaluation de sécurité.
Métadonnées d'utilisation des tokens, notamment `promptTokenCount`, `candidatesTokenCount` et `totalTokenCount`.
### Exemple de réponse
```json 200 theme={null}
{
"candidates": [
{
"content": {
"role": "model",
"parts": [
{
"inlineData": {
"mimeType": "image/png",
"data": ""
}
}
]
},
"finishReason": "STOP",
"safetyRatings": []
}
],
"usageMetadata": {
"promptTokenCount": 14,
"candidatesTokenCount": 0,
"totalTokenCount": 14
}
}
```
## OpenAPI
````yaml api-reference/openapi.json POST /v1/models/{model}:generateContent
openapi: 3.1.0
info:
title: DGrid AI Gateway API
description: >-
A single, unified API to access 200+ leading AI models. OpenAI-, Claude-,
and Gemini-compatible endpoints for chat, completions, embeddings, images,
audio, and moderations.
version: 1.0.0
contact:
name: DGrid AI
url: https://dgrid.ai
servers:
- url: https://api.dgrid.ai
description: DGrid AI Gateway
security:
- bearerAuth: []
paths:
/v1/models/{model}:generateContent:
post:
tags:
- Chat
summary: Generate content (Gemini)
description: >-
Gemini-native generateContent interface for text chat, multimodal media
recognition (images, audio, video), speech synthesis, and image
generation with structured parts. Use `generationConfig` to request
specific response modalities such as speech (`speechConfig`) or images
(`imageConfig`).
operationId: generateContent
parameters:
- name: model
in: path
required: true
schema:
type: string
description: Target model ID, such as `gemini-1.5-pro`.
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
contents:
type: array
description: Input content array with role and parts.
items:
type: object
properties:
role:
type: string
description: Content role.
parts:
type: array
description: Content parts (text, inline data, media).
items:
type: object
generationConfig:
type: object
description: Generation configuration.
properties:
responseModalities:
type: array
items:
type: string
description: >-
Requested response modalities, such as `TEXT`, `AUDIO`,
or `IMAGE`.
speechConfig:
type: object
description: Speech configuration for audio output.
properties:
voiceConfig:
type: object
properties:
prebuiltVoiceConfig:
type: object
properties:
voiceName:
type: string
description: Voice preset name.
imageConfig:
type: object
description: Image configuration for image output.
properties:
aspectRatio:
type: string
description: Aspect ratio.
imageSize:
type: string
description: Image size.
example:
contents:
- role: user
parts:
- text: Hello from DGrid.
responses:
'200':
description: Generated content candidates.
content:
application/json:
schema:
type: object
properties:
candidates:
type: array
description: Candidate responses returned by the model.
items:
type: object
properties:
content:
type: object
description: Generated content object.
properties:
role:
type: string
description: Role in the generated content block.
parts:
type: array
description: Returned content parts.
items:
type: object
finishReason:
type: string
description: Finish reason string.
safetyRatings:
type: array
description: Safety evaluation results.
items:
type: object
usageMetadata:
type: object
description: Token accounting metadata.
properties:
promptTokenCount:
type: integer
candidatesTokenCount:
type: integer
totalTokenCount:
type: integer
'400':
$ref: '#/components/responses/BadRequest'
components:
responses:
BadRequest:
description: Invalid request.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
schemas:
Error:
type: object
properties:
error:
type: object
properties:
message:
type: string
type:
type: string
param:
type: string
code:
type: string
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: >-
Your DGrid API key. All endpoints use `Authorization: Bearer
`.
````