SalesforceFastStandard

BLIP

Salesforce BLIP (173M+ runs) — image captioning, visual question answering, and image-text matching in one model. The classic choice for bulk captioning at 1 credit per image.

1 credits

per image

Three tasks: captioning, VQA, image-text matching

173M+ runs — the classic captioner

1 credit per image — ideal for bulk pipelines

Short, reliable English captions

Run it right now

Test this model instantly in the Console Playground — no code required

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Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "salesforce/blip",
  "input": {
    "image": "https://example.com/photo.jpg",
    "task": "image_captioning"
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`image`	string	Yes	-	Input image
`task`	string	No	image_captioning	Task to perform image_captioningvisual_question_answeringimage_text_matching
`question`	string	No	-	Question about the image (VQA task only)
`caption`	string	No	-	Caption to match against the image (matching task only)

How to Provide File Input

There are 3 ways to provide files for the image parameter:

Recommended

Direct Upload (Multipart)

Attach files directly to POST /v1/predictions/upload. No separate upload step needed.

curl -X POST "https://api.core.today/v1/predictions/upload" \
  -H "X-API-Key: cdt_your_api_key" \
  -F "model=salesforce/blip" \
  -F 'input={"prompt":"your prompt here"}' \
  -F "file:image=@your_file.png"

Image URL

Pass a publicly accessible URL directly. You can also use file_url from the Storage API.

{
  "model": "salesforce/blip",
  "input": {
    "prompt": "your prompt here",
    "image": "https://example.com/image.jpg"
  }
}

See the File Upload docs for more upload methods including Presigned URLs.

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Bulk Captioning

Generate a caption for an image

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "salesforce/blip",
  "input": {
    "image": "https://example.com/photo.jpg",
    "task": "image_captioning"
  }
}'

Visual Question Answering

Ask a question about the image

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "salesforce/blip",
  "input": {
    "image": "https://example.com/photo.jpg",
    "task": "visual_question_answering",
    "question": "How many people are in the picture?"
  }
}'