Gemini Native (Image)
curl --request POST \
--url https://api.gravitex.ai/v1beta/models/{model}:generateContent \
--header 'Authorization: <authorization>'import requests
url = "https://api.gravitex.ai/v1beta/models/{model}:generateContent"
headers = {"Authorization": "<authorization>"}
response = requests.post(url, headers=headers)
print(response.text)const options = {method: 'POST', headers: {Authorization: '<authorization>'}};
fetch('https://api.gravitex.ai/v1beta/models/{model}:generateContent', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.gravitex.ai/v1beta/models/{model}:generateContent",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_HTTPHEADER => [
"Authorization: <authorization>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.gravitex.ai/v1beta/models/{model}:generateContent"
req, _ := http.NewRequest("POST", url, nil)
req.Header.Add("Authorization", "<authorization>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.gravitex.ai/v1beta/models/{model}:generateContent")
.header("Authorization", "<authorization>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.gravitex.ai/v1beta/models/{model}:generateContent")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
response = http.request(request)
puts response.read_bodyImage Series
Gemini Native (Image)
Gemini generateContent and Chat Completions image generation
POST
/
v1beta
/
models
/
{model}
:generateContent
Gemini Native (Image)
curl --request POST \
--url https://api.gravitex.ai/v1beta/models/{model}:generateContent \
--header 'Authorization: <authorization>'import requests
url = "https://api.gravitex.ai/v1beta/models/{model}:generateContent"
headers = {"Authorization": "<authorization>"}
response = requests.post(url, headers=headers)
print(response.text)const options = {method: 'POST', headers: {Authorization: '<authorization>'}};
fetch('https://api.gravitex.ai/v1beta/models/{model}:generateContent', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.gravitex.ai/v1beta/models/{model}:generateContent",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_HTTPHEADER => [
"Authorization: <authorization>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.gravitex.ai/v1beta/models/{model}:generateContent"
req, _ := http.NewRequest("POST", url, nil)
req.Header.Add("Authorization", "<authorization>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.gravitex.ai/v1beta/models/{model}:generateContent")
.header("Authorization", "<authorization>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.gravitex.ai/v1beta/models/{model}:generateContent")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
response = http.request(request)
puts response.read_bodyIntroduction
Gemini images can be requested via:- Gemini native:
POST /v1beta/models/{model}:generateContentwithresponseModalities: ["IMAGE"]andimageConfig - OpenAI-compatible:
POST /v1/images/generationsâ see Gemini OpenAI format (Images) â orPOST /v1/chat/completionsâ see Gemini OpenAI format (Chat) appendix
Authentication
string
required
Bearer Token, e.g.
Bearer sk-xxxxxxxxxxRequest examples
- generateContent
- Chat Completions
curl -X POST "https://api.gravitex.ai/v1beta/models/gemini-2.5-flash-image:generateContent" \
-H "Authorization: Bearer sk-xxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"contents": [{"role": "user", "parts": [{"text": "A cute orange cat in a garden, photo quality"}]}],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {"aspectRatio": "16:9", "imageSize": "2K"}
}
}'
curl -X POST "https://api.gravitex.ai/v1/chat/completions" \
-H "Authorization: Bearer sk-xxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-2.5-flash-image",
"messages": [{"role": "user", "content": "Generate a cyberpunk city at night"}]
}'
âI
