Create a chat image (non-stream)

POST

/v1/chat/completions

Given a prompt, the model returns one or more predicted completions and can also return alternative token probabilities at each position.

Create a completion for the provided prompt and parameters.

Official docs: https://docs.anthropic.com/en/docs/build-with-claude/vision

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Header Params

Body Params application/json

Examples

Responses

🟢200OK

application/json

Body

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST '/v1/chat/completions' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "claude-3-5-sonnet-20240620",
    "messages": [
      {
        "role": "system",
        "content": "You are a helpful assistant."
      },
      {
            "role": "user",
            "content": [
                {"type": "text", "text": "What is in this picture? Please describe it in detail."},
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
                    }
                }
            ]
        }
    ]
  }'

Response Example

{
    "id": "chatcmpl-123",
    "object": "chat.completion",
    "created": 1677652288,
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "\n\nHello there, how may I assist you today?"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 9,
        "completion_tokens": 12,
        "total_tokens": 21
    }
}

Modified at 2025-09-19 02:26:36

Create a chat image (streaming)

Chat interface [native format]