NabiBukhsh-AI · Oct 11, 2026
diff --git a/models/bedrock/claude-sonnet-5-5.yaml b/models/bedrock/claude-sonnet-5-5.yaml
@@ -0,0 +1,73 @@
+# yaml-language-server: $schema=https://modelparams.dev/api/v1/schema.json
+provider: bedrock
+authType: api_key
+apiSurface: amazon-bedrock-converse
+model: claude-sonnet-5-5
+wireId: "{scope}.anthropic.claude-sonnet-5-5"
+params:
+  - path: inferenceConfig.maxTokens
+    type: integer
+    label: Max tokens
+    description: Maximum number of output tokens the model may generate.
+    range:
+      min: 1
+    group: generation_length
+  - path: inferenceConfig.temperature
+    type: number
+    label: Temperature
+    description: >-
+      Controls randomness. Lower values make outputs more focused; higher values make them more
+      varied. Bedrock rejects values above 1 for this model.
+    range:
+      min: 0
+      max: 1
+      step: 0.1
+    group: sampling
+  - path: inferenceConfig.topP
+    type: number
+    label: Top P
+    description: >-
+      Controls nucleus sampling by limiting generation to tokens whose cumulative probability
+      reaches this value.
+    range:
+      min: 0
+      max: 1
+      step: 0.01
+    group: sampling
+  - path: inferenceConfig.stopSequences
+    type: string
+    label: Stop sequences
+    description: A list of strings where the model stops generating further tokens.
+    group: generation_length
+  - path: additionalModelRequestFields.top_k
+    type: integer
+    label: Top K
+    description: >-
+      Limits token sampling to the top K most likely next tokens. Converse carries it through
+      additionalModelRequestFields; it is not part of inferenceConfig.
+    range:
+      min: 0
+    group: sampling
+  - path: additionalModelRequestFields.thinking.type
+    type: enum
+    label: Thinking mode
+    description: >-
+      Controls Anthropic extended thinking on Bedrock. Bedrock rejects the adaptive mode the
+      first-party Anthropic API accepts, so only disabled and enabled are listed here.
+    default: disabled
+    values:
+      - disabled
+      - enabled
+    group: reasoning
+  - path: additionalModelRequestFields.thinking.budget_tokens
+    type: integer
+    label: Budget tokens
+    description: >-
+      Maximum token budget the model may use for extended thinking before producing the final
+      answer. Must be less than inferenceConfig.maxTokens.
+    range:
+      min: 1024
+    group: reasoning
+    applicability:
+      only:
+        additionalModelRequestFields.thinking.type: enabled
diff --git a/packages/modelparams-python/src/modelparams/_generated/catalog.json b/packages/modelparams-python/src/modelparams/_generated/catalog.json
@@ -10449,6 +10449,93 @@
       }
     ]
   },
+  {
+    "provider": "bedrock",
+    "authType": "api_key",
+    "apiSurface": "amazon-bedrock-converse",
+    "model": "claude-sonnet-5-5",
+    "wireId": "{scope}.anthropic.claude-sonnet-5-5",
+    "params": [
+      {
+        "path": "inferenceConfig.maxTokens",
+        "label": "Max tokens",
+        "description": "Maximum number of output tokens the model may generate.",
+        "group": "generation_length",
+        "type": "integer",
+        "range": {
+          "min": 1
+        }
+      },
+      {
+        "path": "inferenceConfig.temperature",
+        "label": "Temperature",
+        "description": "Controls randomness. Lower values make outputs more focused; higher values make them more varied. Bedrock rejects values above 1 for this model.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": 0,
+          "max": 1,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "inferenceConfig.topP",
+        "label": "Top P",
+        "description": "Controls nucleus sampling by limiting generation to tokens whose cumulative probability reaches this value.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": 0,
+          "max": 1,
+          "step": 0.01
+        }
+      },
+      {
+        "path": "inferenceConfig.stopSequences",
+        "label": "Stop sequences",
+        "description": "A list of strings where the model stops generating further tokens.",
+        "group": "generation_length",
+        "type": "string"
+      },
+      {
+        "path": "additionalModelRequestFields.top_k",
+        "label": "Top K",
+        "description": "Limits token sampling to the top K most likely next tokens. Converse carries it through additionalModelRequestFields; it is not part of inferenceConfig.",
+        "group": "sampling",
+        "type": "integer",
+        "range": {
+          "min": 0
+        }
+      },
+      {
+        "path": "additionalModelRequestFields.thinking.type",
+        "label": "Thinking mode",
+        "description": "Controls Anthropic extended thinking on Bedrock. Bedrock rejects the adaptive mode the first-party Anthropic API accepts, so only disabled and enabled are listed here.",
+        "group": "reasoning",
+        "type": "enum",
+        "default": "disabled",
+        "values": [
+          "disabled",
+          "enabled"
+        ]
+      },
+      {
+        "path": "additionalModelRequestFields.thinking.budget_tokens",
+        "label": "Budget tokens",
+        "description": "Maximum token budget the model may use for extended thinking before producing the final answer. Must be less than inferenceConfig.maxTokens.",
+        "group": "reasoning",
+        "applicability": {
+          "only": {
+            "additionalModelRequestFields.thinking.type": "enabled"
+          }
+        },
+        "type": "integer",
+        "range": {
+          "min": 1024
+        }
+      }
+    ]
+  },
   {
     "provider": "bedrock",
     "authType": "api_key",

diff --git a/packages/modelparams-python/src/modelparams/_generated/model_ids.py b/packages/modelparams-python/src/modelparams/_generated/model_ids.py
@@ -134,6 +134,7 @@
     "bedrock/claude-opus-4-6",
     "bedrock/claude-sonnet-4-5",
     "bedrock/claude-sonnet-4-6",
+    "bedrock/claude-sonnet-5-5",
     "bedrock/deepseek-r1",
     "bedrock/deepseek-v3.2",
     "bedrock/devstral-2-123b",
@@ -627,6 +628,7 @@
     "bedrock/claude-opus-4-6",
     "bedrock/claude-sonnet-4-5",
     "bedrock/claude-sonnet-4-6",
+    "bedrock/claude-sonnet-5-5",
     "bedrock/deepseek-r1",
     "bedrock/deepseek-v3.2",
     "bedrock/devstral-2-123b",

diff --git a/packages/modelparams-python/src/modelparams/_generated/registry.py b/packages/modelparams-python/src/modelparams/_generated/registry.py
@@ -159,6 +159,7 @@
     "bedrock/claude-opus-4-6": bedrock.Claude_Opus_4_6Params,
     "bedrock/claude-sonnet-4-5": bedrock.Claude_Sonnet_4_5Params,
     "bedrock/claude-sonnet-4-6": bedrock.Claude_Sonnet_4_6Params,
+    "bedrock/claude-sonnet-5-5": bedrock.Claude_Sonnet_5_5Params,
     "bedrock/deepseek-r1": bedrock.Deepseek_R1Params,
     "bedrock/deepseek-v3.2": bedrock.Deepseek_V3_2Params,
     "bedrock/devstral-2-123b": bedrock.Devstral_2_123bParams,

diff --git a/packages/modelparams-python/src/modelparams/types/bedrock.py b/packages/modelparams-python/src/modelparams/types/bedrock.py
@@ -85,6 +85,21 @@
 )
 setattr(Claude_Sonnet_4_6Params, "__pydantic_config__", _PARAMS_CONFIG)
 
+Claude_Sonnet_5_5Params = TypedDict(
+    "Claude_Sonnet_5_5Params",
+    {
+        "inferenceConfig.maxTokens": Annotated[int, Field(ge=1)],
+        "inferenceConfig.temperature": Annotated[float, Field(ge=0, le=1)],
+        "inferenceConfig.topP": Annotated[float, Field(ge=0, le=1)],
+        "inferenceConfig.stopSequences": str,
+        "additionalModelRequestFields.top_k": Annotated[int, Field(ge=0)],
+        "additionalModelRequestFields.thinking.type": Literal["disabled", "enabled"],
+        "additionalModelRequestFields.thinking.budget_tokens": Annotated[int, Field(ge=1024)],
+    },
+    total=False,
+)
+setattr(Claude_Sonnet_5_5Params, "__pydantic_config__", _PARAMS_CONFIG)
+
 Deepseek_R1Params = TypedDict(
     "Deepseek_R1Params",
     {
@@ -717,6 +732,7 @@
     "Claude_Opus_4_6Params",
     "Claude_Sonnet_4_5Params",
     "Claude_Sonnet_4_6Params",
+    "Claude_Sonnet_5_5Params",
     "Deepseek_R1Params",
     "Deepseek_V3_2Params",
     "Devstral_2_123bParams",

diff --git a/packages/modelparams/src/generated/data.ts b/packages/modelparams/src/generated/data.ts
@@ -10454,6 +10454,93 @@ const GENERATED_CATALOG = [
       }
     ]
   },
+  {
+    "provider": "bedrock",
+    "authType": "api_key",
+    "apiSurface": "amazon-bedrock-converse",
+    "model": "claude-sonnet-5-5",
+    "wireId": "{scope}.anthropic.claude-sonnet-5-5",
+    "params": [
+      {
+        "path": "inferenceConfig.maxTokens",
+        "label": "Max tokens",
+        "description": "Maximum number of output tokens the model may generate.",
+        "group": "generation_length",
+        "type": "integer",
+        "range": {
+          "min": 1
+        }
+      },
+      {
+        "path": "inferenceConfig.temperature",
+        "label": "Temperature",
+        "description": "Controls randomness. Lower values make outputs more focused; higher values make them more varied. Bedrock rejects values above 1 for this model.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": 0,
+          "max": 1,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "inferenceConfig.topP",
+        "label": "Top P",
+        "description": "Controls nucleus sampling by limiting generation to tokens whose cumulative probability reaches this value.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": 0,
+          "max": 1,
+          "step": 0.01
+        }
+      },
+      {
+        "path": "inferenceConfig.stopSequences",
+        "label": "Stop sequences",
+        "description": "A list of strings where the model stops generating further tokens.",
+        "group": "generation_length",
+        "type": "string"
+      },
+      {
+        "path": "additionalModelRequestFields.top_k",
+        "label": "Top K",
+        "description": "Limits token sampling to the top K most likely next tokens. Converse carries it through additionalModelRequestFields; it is not part of inferenceConfig.",
+        "group": "sampling",
+        "type": "integer",
+        "range": {
+          "min": 0
+        }
+      },
+      {
+        "path": "additionalModelRequestFields.thinking.type",
+        "label": "Thinking mode",
+        "description": "Controls Anthropic extended thinking on Bedrock. Bedrock rejects the adaptive mode the first-party Anthropic API accepts, so only disabled and enabled are listed here.",
+        "group": "reasoning",
+        "type": "enum",
+        "default": "disabled",
+        "values": [
+          "disabled",
+          "enabled"
+        ]
+      },
+      {
+        "path": "additionalModelRequestFields.thinking.budget_tokens",
+        "label": "Budget tokens",
+        "description": "Maximum token budget the model may use for extended thinking before producing the final answer. Must be less than inferenceConfig.maxTokens.",
+        "group": "reasoning",
+        "applicability": {
+          "only": {
+            "additionalModelRequestFields.thinking.type": "enabled"
+          }
+        },
+        "type": "integer",
+        "range": {
+          "min": 1024
+        }
+      }
+    ]
+  },
   {
     "provider": "bedrock",
     "authType": "api_key",

diff --git a/packages/modelparams/src/generated/defaults.ts b/packages/modelparams/src/generated/defaults.ts
@@ -670,6 +670,9 @@ export const DEFAULTS = {
   "bedrock/claude-sonnet-4-6": {
     "additionalModelRequestFields.thinking.type": "disabled",
   },
+  "bedrock/claude-sonnet-5-5": {
+    "additionalModelRequestFields.thinking.type": "disabled",
+  },
   "bedrock/deepseek-r1": {},
   "bedrock/deepseek-v3.2": {},
   "bedrock/devstral-2-123b": {},

diff --git a/packages/modelparams/src/generated/model-ids.ts b/packages/modelparams/src/generated/model-ids.ts
@@ -132,6 +132,7 @@ export const MODEL_IDS = [
   "bedrock/claude-opus-4-6",
   "bedrock/claude-sonnet-4-5",
   "bedrock/claude-sonnet-4-6",
+  "bedrock/claude-sonnet-5-5",
   "bedrock/deepseek-r1",
   "bedrock/deepseek-v3.2",
   "bedrock/devstral-2-123b",

diff --git a/packages/modelparams/src/generated/params-by-id.ts b/packages/modelparams/src/generated/params-by-id.ts
@@ -971,6 +971,15 @@ export type ParamsById = {
     "additionalModelRequestFields.thinking.type": "disabled" | "enabled";
     "additionalModelRequestFields.thinking.budget_tokens": number;
   };
+  "bedrock/claude-sonnet-5-5": {
+    "inferenceConfig.maxTokens": number;
+    "inferenceConfig.temperature": number;
+    "inferenceConfig.topP": number;
+    "inferenceConfig.stopSequences": string;
+    "additionalModelRequestFields.top_k": number;
+    "additionalModelRequestFields.thinking.type": "disabled" | "enabled";
+    "additionalModelRequestFields.thinking.budget_tokens": number;
+  };
   "bedrock/deepseek-r1": {
     "inferenceConfig.maxTokens": number;
     "inferenceConfig.temperature": number;