GET
/
v1
/
models
/
{model_id}
cURL
curl https://api.anthropic.com/v1/models/claude-sonnet-4-20250514 \
     --header "x-api-key: $ANTHROPIC_API_KEY" \
     --header "anthropic-version: 2023-06-01"
{
  "created_at": "2025-02-19T00:00:00Z",
  "display_name": "Claude Sonnet 4",
  "id": "claude-sonnet-4-20250514",
  "type": "model"
}

Headers

​
anthropic-version
string
required

The version of the Claude API you want to use.

Read more about versioning and our version history here.

​
x-api-key
string
required

Your unique API key for authentication.

This key is required in the header of all API requests, to authenticate your account and access Anthropic's services. Get your API key through the Console. Each key is scoped to a Workspace.

​
anthropic-beta
string[]

Optional header to specify the beta version(s) you want to use.

To use multiple betas, use a comma separated list like beta1,beta2 or specify the header multiple times for each beta.

Path Parameters

​
model_id
string
required

Model identifier or alias.

Response

Successful Response

​
created_at
string<date-time>
required

RFC 3339 datetime string representing the time at which the model was released. May be set to an epoch value if the release date is unknown.

Examples:

"2025-02-19T00:00:00Z"

​
display_name
string
required

A human-readable name for the model.

Examples:

"Claude Sonnet 4"

​
id
string
required

Unique model identifier.

Examples:

"claude-sonnet-4-20250514"

​
type
enum<string>
default:model
required

Object type.

For Models, this is always "model".

Available options:
TitleConst
Typemodel