One change

Models

api/beta/models

25 Aug 2026 03:37 UTC first seen 14 Aug 2026 The page's own history The capture it came from

Nearest release: v2.1.245, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

api/beta/models Changed · +30 / -27 lines

### Query parameters ### Headers #### Response (200) ### Path parameters ### Headers #### Response (200) ## Domain types ### Query Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters #### Response ## Domain Types

from line 1

----
-title: Models
-url: https://platform.claude.com/docs/en/api/beta/models
----
-
 # Models
 
 ## List Models
 
-**get** `/v1/models`
+**GET** `/v1/models`
 
 List available models.
 
 The Models API response can be used to determine which models are available for use in the API. More recently released models are listed first.
 
-### Query Parameters
+### Query parameters
 
 - `after_id: optional string`

from line 24

 
   Defaults to `20`. Ranges from `1` to `1000`.
 
-### Header Parameters
+  default: 20, maximum: 1000, minimum: 1
 
+### Headers
+
 - `"anthropic-beta": optional array of AnthropicBeta`
 
   Optional header to specify the beta version(s) you want to use.

from line 220

 
     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.
 
+    format: date-time
+
   - `display_name: string`
 
     A human-readable name for the model.

from line 240

 
     For Models, this is always `"model"`.
 
-    - `"model"`
+    default: model
 
 - `first_id: string or null`

from line 256

 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/models \
     -H 'anthropic-version: 2023-06-01' \
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {

from line 348

 
 ## Get a Model
 
-**get** `/v1/models/{model_id}`
+**GET** `/v1/models/{model_id}`
 
 Get a specific model.
 
 The Models API response can be used to determine information about a specific model or resolve a model alias to a model ID.
 
-### Path Parameters
+### Path parameters
 
 - `model_id: string`
 
   Model identifier or alias.
 
-### Header Parameters
+### Headers
 
 - `"anthropic-beta": optional array of AnthropicBeta`

from line 440

 
 ### Returns
 
-- `BetaModelInfo object { id, allowed_fallback_models, capabilities, 5 more }`
+- `BetaModelInfo object`
 
   - `id: string`

from line 554

 
     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.
 
+    format: date-time
+
   - `display_name: string`
 
     A human-readable name for the model.

from line 574

 
     For Models, this is always `"model"`.
 
-    - `"model"`
+    default: model
 
 ### Example
 
-```http
+```bash
 curl https://api.anthropic.com/v1/models/$MODEL_ID \
     -H 'anthropic-version: 2023-06-01' \
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+#### Response (200)
 
 ```json
 {

from line 661

 }
 ```
 
-## Domain Types
+## Domain types
 
 ### Beta Capability Support
 
-- `BetaCapabilitySupport object { supported }`
+- `BetaCapabilitySupport object`
 
   Indicates whether a capability is supported.

from line 675

 
 ### Beta Context Management Capability
 
-- `BetaContextManagementCapability object { clear_thinking_20251015, clear_tool_uses_20250919, compact_20260112, supported }`
+- `BetaContextManagementCapability object`
 
   Context management capability details.

from line 701

 
 ### Beta Effort Capability
 
-- `BetaEffortCapability object { high, low, max, 3 more }`
+- `BetaEffortCapability object`
 
   Effort (reasoning_effort) capability details.

from line 735

 
 ### Beta Model Capabilities
 
-- `BetaModelCapabilities object { batch, citations, code_execution, 6 more }`
+- `BetaModelCapabilities object`
 
   Model capability information.

from line 837

 
 ### Beta Model Info
 
-- `BetaModelInfo object { id, allowed_fallback_models, capabilities, 5 more }`
+- `BetaModelInfo object`
 
   - `id: string`

from line 951

 
     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.
 
+    format: date-time
+
   - `display_name: string`
 
     A human-readable name for the model.

from line 971

 
     For Models, this is always `"model"`.
 
-    - `"model"`
+    default: model
 
 ### Beta Thinking Capability
 
-- `BetaThinkingCapability object { supported, types }`
+- `BetaThinkingCapability object`
 
   Thinking capability details.

from line 1001

 
 ### Beta Thinking Types
 
-- `BetaThinkingTypes object { adaptive, enabled }`
+- `BetaThinkingTypes object`
 
   Supported thinking type configurations.