Generating Images Through Portkey API

Try creating an image through Portkey will give base64 format, even after setting up response_format to be url.

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config_json = json.dumps(config)

url = 'https://api.portkey.ai/v1/images/generations'

headers = {
            'Content-Type': 'application/json',
            'x-portkey-api-key': f'{PORTKEY_API_KEY}',
          }

headers['x-portkey-config'] = config_json

data = {"prompt": "Harry potter using aeroplane for transport", "response_format":"url"}

response = requests.post(url, headers=headers, data=json.dumps(data))

generation_response = response.json()

print(generation_response)

# {'created': '1710664648966', 'data': [{'b64_json': 'iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACA....

This could be because Stability AI does not return URL in it's response (after Accept: image/png). But it does return bytes. How can one get them through Portkey ?

4 comments

VVrushank | Portkey

cc @visarg who can share more on this!

rrohit

Yes, stabillity only returns base_64

vvisarg

Stability will only return base_64 when used through the unified image generation API. If you want to get the bytes, then you will have to use the proxy API. But proxy API will take stability-ai params and not the openai compatible params. And the response will also be stability-ai type and not openai type

vvisarg

In case you want bytes response, then you can use this to make a proxy call.

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curl --location 'https://api.portkey.ai/v1/generation/stable-diffusion-xl-1024-v1-0/text-to-image' \
--header 'x-portkey-provider: stability-ai' \
--header 'Authorization: <stability-key>' \
--header 'x-portkey-api-key: <portkey-key>' \
--header 'Accept: image/png' \
--header 'Content-Type: application/json' \
--data '{
    "steps": 40,
    "width": 1024,
    "height": 1024,
    "seed": 0,
    "cfg_scale": 5,
    "samples": 1,
    "text_prompts": [
        {
            "text": "A painting of a cat",
            "weight": 1
        },
        {
            "text": "blurry, bad",
            "weight": -1
        }
    ]
}'

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