Claude Platform Docs

Modelle auflisten

$ ant beta:models list
GET/v1/models

Liste verfügbare Modelle auf.

Die Antwort der Models API kann verwendet werden, um festzustellen, welche Modelle zur Verwendung in der API verfügbar sind. Kürzlich veröffentlichte Modelle werden zuerst aufgeführt.

Parameters
--after-id: optional string

Query param: ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately after this object.

--before-id: optional string

Query param: ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately before this object.

--limit: optional number

Query param: Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

maximum1000
minimum1
--beta: optional array of AnthropicBeta

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

Returns
BetaListResponse_ModelInfo_: object{ data, first_id, has_more, last_id }
data: array of BetaModelInfo { id, allowed_fallback_models, capabilities, 5 more }
id: string

Unique model identifier.

allowed_fallback_models: array of string

Model IDs this model accepts as fallbacks[i].model on the Messages API. An empty list means the fallbacks parameter is not supported for this model as primary.

capabilities: object{ batch, citations, code_execution, 6 more }

Model capability information.

batch: object{ supported }

Whether the model supports the Batch API.

supported: boolean

Whether this capability is supported by the model.

citations: object{ supported }

Whether the model supports citation generation.

supported: boolean

Whether this capability is supported by the model.

code_execution: object{ supported }

Whether the model supports code execution tools.

supported: boolean

Whether this capability is supported by the model.

context_management: object{ clear_thinking_20251015, clear_tool_uses_20250919, compact_20260112, supported }

Context management support and available strategies.

clear_thinking_20251015: object{ supported }

Indicates whether a capability is supported.

supported: boolean

Whether this capability is supported by the model.

clear_tool_uses_20250919: object{ supported }

Indicates whether a capability is supported.

supported: boolean

Whether this capability is supported by the model.

compact_20260112: object{ supported }

Indicates whether a capability is supported.

supported: boolean

Whether this capability is supported by the model.

supported: boolean

Whether this capability is supported by the model.

effort: object{ high, low, max, 3 more }

Effort (reasoning_effort) support and available levels.

high: object{ supported }

Whether the model supports high effort level.

supported: boolean

Whether this capability is supported by the model.

low: object{ supported }

Whether the model supports low effort level.

supported: boolean

Whether this capability is supported by the model.

max: object{ supported }

Whether the model supports max effort level.

supported: boolean

Whether this capability is supported by the model.

medium: object{ supported }

Whether the model supports medium effort level.

supported: boolean

Whether this capability is supported by the model.

supported: boolean

Whether this capability is supported by the model.

xhigh: object{ supported }

Indicates whether a capability is supported.

supported: boolean

Whether this capability is supported by the model.

image_input: object{ supported }

Whether the model accepts image content blocks.

supported: boolean

Whether this capability is supported by the model.

pdf_input: object{ supported }

Whether the model accepts PDF content blocks.

supported: boolean

Whether this capability is supported by the model.

structured_outputs: object{ supported }

Whether the model supports structured output / JSON mode / strict tool schemas.

supported: boolean

Whether this capability is supported by the model.

thinking: object{ supported, types }

Thinking capability and supported type configurations.

supported: boolean

Whether this capability is supported by the model.

types: object{ adaptive, enabled }

Supported thinking type configurations.

adaptive: object{ supported }

Whether the model supports thinking with type 'adaptive' (auto).

supported: boolean

Whether this capability is supported by the model.

enabled: object{ supported }

Whether the model supports thinking with type 'enabled'.

supported: boolean

Whether this capability is supported by the model.

created_at: string

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.

formatdate-time
display_name: string

A human-readable name for the model.

max_input_tokens: number

Maximum input context window size in tokens for this model.

max_tokens: number

Maximum value for the max_tokens parameter when using this model.

type: "model"

Object type.

For Models, this is always "model".

first_id: string

First ID in the data list. Can be used as the before_id for the previous page.

has_more: boolean

Indicates if there are more results in the requested page direction.

last_id: string

Last ID in the data list. Can be used as the after_id for the next page.

Modelle auflisten
ant beta:models list \
  --api-key my-anthropic-api-key
Returns Examples
Response 200
{
  "data": [
    {
      "id": "claude-opus-5",
      "allowed_fallback_models": [
        "string"
      ],
      "capabilities": {
        "batch": {
          "supported": true
        },
        "citations": {
          "supported": true
        },
        "code_execution": {
          "supported": true
        },
        "context_management": {
          "clear_thinking_20251015": {
            "supported": true
          },
          "clear_tool_uses_20250919": {
            "supported": true
          },
          "compact_20260112": {
            "supported": true
          },
          "supported": true
        },
        "effort": {
          "high": {
            "supported": true
          },
          "low": {
            "supported": true
          },
          "max": {
            "supported": true
          },
          "medium": {
            "supported": true
          },
          "supported": true,
          "xhigh": {
            "supported": true
          }
        },
        "image_input": {
          "supported": true
        },
        "pdf_input": {
          "supported": true
        },
        "structured_outputs": {
          "supported": true
        },
        "thinking": {
          "supported": true,
          "types": {
            "adaptive": {
              "supported": true
            },
            "enabled": {
              "supported": true
            }
          }
        }
      },
      "created_at": "2026-07-24T00:00:00Z",
      "display_name": "Claude Opus 5",
      "max_input_tokens": 0,
      "max_tokens": 0,
      "type": "model"
    }
  ],
  "first_id": "first_id",
  "has_more": true,
  "last_id": "last_id"
}