Claude Platform Docs

Modelle auflisten

models.list(**kwargs) -> Page<ModelInfo>
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: String⁠Query parameter

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

before_id: String⁠Query parameter

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

lifecycle: Array[:active | :deprecated | :retired]⁠Query parameter

Filter the list to models in any of the given lifecycle stages (active, deprecated, or retired). Up to 3 values. When omitted, the list contains the active and deprecated models; retired models appear only when retired is requested explicitly.

maxItems3
One of the following:
:active
:deprecated
:retired
limit: Integer⁠Query parameter

Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

minimum1
maximum1000
workspace_id: String⁠Header parameter

Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).

Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

betas: Array[AnthropicBeta]⁠Header parameterDeprecated

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

Deprecated. This parameter will be removed from this method in a future release. To use beta features, call the beta models methods (`client.beta.models`) instead.
One of the following:
String = String
:"message-batches-2024-09-24"
:"prompt-caching-2024-07-31"
:"computer-use-2024-10-22"
:"computer-use-2025-01-24"
:"pdfs-2024-09-25"
:"token-counting-2024-11-01"
:"token-efficient-tools-2025-02-19"
:"output-128k-2025-02-19"
:"files-api-2025-04-14"
:"mcp-client-2025-04-04"
:"mcp-client-2025-11-20"
:"dev-full-thinking-2025-05-14"
:"interleaved-thinking-2025-05-14"
:"code-execution-2025-05-22"
:"extended-cache-ttl-2025-04-11"
:"context-1m-2025-08-07"
:"context-management-2025-06-27"
:"model-context-window-exceeded-2025-08-26"
:"skills-2025-10-02"
:"fast-mode-2026-02-01"
:"output-300k-2026-03-24"
:"user-profiles-2026-03-24"
:"user-profiles-2026-08-18"
:"user-profiles-2026-09-04"
:"advisor-tool-2026-03-01"
:"managed-agents-2026-04-01"
:"cache-diagnosis-2026-04-07"
:"dreaming-2026-04-21"
:"thinking-token-count-2026-05-13"
:"server-side-fallback-2026-06-01"
:"server-side-fallback-2026-07-01"
:"fallback-credit-2026-06-01"
:"fallback-credit-2026-07-01"
:"agent-memory-2026-07-22"
:"mid-conversation-tool-changes-2026-07-01"
:"compact-2026-01-12"
:"computer-use-2025-11-24"
:"mcp-tunnels-2026-06-22"
:"structured-outputs-2025-11-13"
:"task-budgets-2026-03-13"
:"thinking-display-updates-2026-08-18"
:"ce-user-management-2026-07-13"
:"mid-conversation-output-config-2026-07-01"
:"thinking-binding-controls-2026-08-01"
:"mid-conversation-system-clear-at-2026-08-21"
:"compact-2026-09-04"
:"inline-tools-2026-09-15"
:"mcp-client-2026-09-15"
:"ce-plugins-2026-09-01"
:"spend-limit-reads-2026-09-26"
:"telemetry-destinations-2026-08-11"
Returns
class ModelInfo { type: :model, id, capabilities, 8 more }
Modelle auflisten
require "anthropic"

anthropic = Anthropic::Client.new(api_key: "my-anthropic-api-key")

page = anthropic.models.list

puts(page)
Returns Examples
Response 200
{
  "data": [
    {
      "id": "claude-opus-5-5",
      "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
        },
        "server_tools": {
          "code_execution": {
            "supported": true
          },
          "supported": true,
          "web_search": {
            "supported": true
          }
        },
        "structured_outputs": {
          "supported": true
        },
        "thinking": {
          "supported": true,
          "types": {
            "adaptive": {
              "supported": true
            },
            "disabled": {
              "supported": true
            },
            "enabled": {
              "supported": true
            }
          }
        }
      },
      "created_at": "2026-09-21T00:00:00Z",
      "deprecated_at": "2019-12-27T18:11:19.117Z",
      "display_name": "Claude Opus 5.5",
      "lifecycle": "active",
      "line": "haiku",
      "max_input_tokens": 0,
      "max_tokens": 0,
      "retires_at": "2019-12-27T18:11:19.117Z",
      "type": "model"
    }
  ],
  "first_id": "first_id",
  "has_more": true,
  "last_id": "last_id"
}