diff --git a/models/opencode-go/claude-haiku-5-5-subscription.yaml b/models/opencode-go/claude-haiku-5-5-subscription.yaml
new file mode 100644
index 00000000..7d6d4c9a
--- /dev/null
+++ b/models/opencode-go/claude-haiku-5-5-subscription.yaml
@@ -0,0 +1,40 @@
+# yaml-language-server: $schema=https://modelparams.dev/api/v1/schema.json
+provider: opencode-go
+authType: subscription
+apiSurface: openai-chat-completions
+model: claude-haiku-5-5
+wireId: opencode-go/claude-haiku-5-5
+params:
+  - path: max_tokens
+    type: integer
+    label: Max tokens
+    description: Maximum number of tokens to generate in the response.
+    range:
+      min: 1
+    group: generation_length
+  - path: presence_penalty
+    type: number
+    label: Presence penalty
+    description: Penalizes tokens that have already appeared to encourage a wider variety of content.
+    range:
+      min: -2
+      max: 2
+      step: 0.1
+    group: sampling
+  - path: frequency_penalty
+    type: number
+    label: Frequency penalty
+    description: Penalizes tokens in proportion to how often they have already appeared.
+    range:
+      min: -2
+      max: 2
+      step: 0.1
+    group: sampling
+  - path: response_format.type
+    type: enum
+    label: Response format
+    description: Choose plain text or force valid JSON output.
+    values:
+      - text
+      - json_object
+    group: output_format
diff --git a/packages/modelparams-python/src/modelparams/_generated/catalog.json b/packages/modelparams-python/src/modelparams/_generated/catalog.json
index 3b2e407f..711ba9b1 100644
--- a/packages/modelparams-python/src/modelparams/_generated/catalog.json
+++ b/packages/modelparams-python/src/modelparams/_generated/catalog.json
@@ -30784,6 +30784,60 @@
       }
     ]
   },
+  {
+    "provider": "opencode-go",
+    "authType": "subscription",
+    "apiSurface": "openai-chat-completions",
+    "model": "claude-haiku-5-5",
+    "wireId": "opencode-go/claude-haiku-5-5",
+    "params": [
+      {
+        "path": "max_tokens",
+        "label": "Max tokens",
+        "description": "Maximum number of tokens to generate in the response.",
+        "group": "generation_length",
+        "type": "integer",
+        "range": {
+          "min": 1
+        }
+      },
+      {
+        "path": "presence_penalty",
+        "label": "Presence penalty",
+        "description": "Penalizes tokens that have already appeared to encourage a wider variety of content.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": -2,
+          "max": 2,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "frequency_penalty",
+        "label": "Frequency penalty",
+        "description": "Penalizes tokens in proportion to how often they have already appeared.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": -2,
+          "max": 2,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "response_format.type",
+        "label": "Response format",
+        "description": "Choose plain text or force valid JSON output.",
+        "group": "output_format",
+        "type": "enum",
+        "values": [
+          "text",
+          "json_object"
+        ]
+      }
+    ]
+  },
   {
     "provider": "opencode-go",
     "authType": "subscription",
diff --git a/packages/modelparams-python/src/modelparams/_generated/model_ids.py b/packages/modelparams-python/src/modelparams/_generated/model_ids.py
index 0a645e36..1907e8d2 100644
--- a/packages/modelparams-python/src/modelparams/_generated/model_ids.py
+++ b/packages/modelparams-python/src/modelparams/_generated/model_ids.py
@@ -415,6 +415,7 @@
     "openai/o3-mini",
     "openai/o3-pro",
     "openai/o4-mini",
+    "opencode-go/claude-haiku-5-5-subscription",
     "opencode-go/deepseek-flash-subscription",
     "opencode-go/deepseek-v4-flash-vision-exp-subscription",
     "opencode-go/glm-5.3-flash-subscription",
@@ -903,6 +904,7 @@
     "openai/o3-mini",
     "openai/o3-pro",
     "openai/o4-mini",
+    "opencode-go/claude-haiku-5-5-subscription",
     "opencode-go/deepseek-flash-subscription",
     "opencode-go/deepseek-v4-flash-vision-exp-subscription",
     "opencode-go/glm-5.3-flash-subscription",
diff --git a/packages/modelparams-python/src/modelparams/_generated/registry.py b/packages/modelparams-python/src/modelparams/_generated/registry.py
index 9af5300d..b521d0a0 100644
--- a/packages/modelparams-python/src/modelparams/_generated/registry.py
+++ b/packages/modelparams-python/src/modelparams/_generated/registry.py
@@ -440,6 +440,7 @@
     "openai/o3-mini": openai.O3_MiniParams,
     "openai/o3-pro": openai.O3_ProParams,
     "openai/o4-mini": openai.O4_MiniParams,
+    "opencode-go/claude-haiku-5-5-subscription": opencode_go.Claude_Haiku_5_5_SubscriptionParams,
     "opencode-go/deepseek-flash-subscription": opencode_go.Deepseek_Flash_SubscriptionParams,
     "opencode-go/deepseek-v4-flash-vision-exp-subscription": opencode_go.Deepseek_V4_Flash_Vision_Exp_SubscriptionParams,
     "opencode-go/glm-5.3-flash-subscription": opencode_go.Glm_5_3_Flash_SubscriptionParams,
diff --git a/packages/modelparams-python/src/modelparams/types/opencode_go.py b/packages/modelparams-python/src/modelparams/types/opencode_go.py
index d745ab64..10b66a73 100644
--- a/packages/modelparams-python/src/modelparams/types/opencode_go.py
+++ b/packages/modelparams-python/src/modelparams/types/opencode_go.py
@@ -10,6 +10,18 @@
 
 _PARAMS_CONFIG = ConfigDict(strict=True, extra="forbid")
 
+Claude_Haiku_5_5_SubscriptionParams = TypedDict(
+    "Claude_Haiku_5_5_SubscriptionParams",
+    {
+        "max_tokens": Annotated[int, Field(ge=1)],
+        "presence_penalty": Annotated[float, Field(ge=-2, le=2)],
+        "frequency_penalty": Annotated[float, Field(ge=-2, le=2)],
+        "response_format.type": Literal["text", "json_object"],
+    },
+    total=False,
+)
+setattr(Claude_Haiku_5_5_SubscriptionParams, "__pydantic_config__", _PARAMS_CONFIG)
+
 Deepseek_Flash_SubscriptionParams = TypedDict(
     "Deepseek_Flash_SubscriptionParams",
     {
@@ -258,6 +270,7 @@
 setattr(Space_Bunny_SubscriptionParams, "__pydantic_config__", _PARAMS_CONFIG)
 
 __all__ = [
+    "Claude_Haiku_5_5_SubscriptionParams",
     "Deepseek_Flash_SubscriptionParams",
     "Deepseek_V4_Flash_Vision_Exp_SubscriptionParams",
     "Glm_5_3_Flash_SubscriptionParams",
diff --git a/packages/modelparams/src/generated/data.ts b/packages/modelparams/src/generated/data.ts
index 34a61c8d..dca75368 100644
--- a/packages/modelparams/src/generated/data.ts
+++ b/packages/modelparams/src/generated/data.ts
@@ -30789,6 +30789,60 @@ const GENERATED_CATALOG = [
       }
     ]
   },
+  {
+    "provider": "opencode-go",
+    "authType": "subscription",
+    "apiSurface": "openai-chat-completions",
+    "model": "claude-haiku-5-5",
+    "wireId": "opencode-go/claude-haiku-5-5",
+    "params": [
+      {
+        "path": "max_tokens",
+        "label": "Max tokens",
+        "description": "Maximum number of tokens to generate in the response.",
+        "group": "generation_length",
+        "type": "integer",
+        "range": {
+          "min": 1
+        }
+      },
+      {
+        "path": "presence_penalty",
+        "label": "Presence penalty",
+        "description": "Penalizes tokens that have already appeared to encourage a wider variety of content.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": -2,
+          "max": 2,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "frequency_penalty",
+        "label": "Frequency penalty",
+        "description": "Penalizes tokens in proportion to how often they have already appeared.",
+        "group": "sampling",
+        "type": "number",
+        "range": {
+          "min": -2,
+          "max": 2,
+          "step": 0.1
+        }
+      },
+      {
+        "path": "response_format.type",
+        "label": "Response format",
+        "description": "Choose plain text or force valid JSON output.",
+        "group": "output_format",
+        "type": "enum",
+        "values": [
+          "text",
+          "json_object"
+        ]
+      }
+    ]
+  },
   {
     "provider": "opencode-go",
     "authType": "subscription",
diff --git a/packages/modelparams/src/generated/defaults.ts b/packages/modelparams/src/generated/defaults.ts
index 976dbd73..231aa9f7 100644
--- a/packages/modelparams/src/generated/defaults.ts
+++ b/packages/modelparams/src/generated/defaults.ts
@@ -2019,6 +2019,7 @@ export const DEFAULTS = {
     max_completion_tokens: 4096,
     reasoning_effort: "medium",
   },
+  "opencode-go/claude-haiku-5-5-subscription": {},
   "opencode-go/deepseek-flash-subscription": {},
   "opencode-go/deepseek-v4-flash-vision-exp-subscription": {},
   "opencode-go/glm-5.3-flash-subscription": {},
diff --git a/packages/modelparams/src/generated/model-ids.ts b/packages/modelparams/src/generated/model-ids.ts
index 36b801ec..bf818c01 100644
--- a/packages/modelparams/src/generated/model-ids.ts
+++ b/packages/modelparams/src/generated/model-ids.ts
@@ -413,6 +413,7 @@ export const MODEL_IDS = [
   "openai/o3-mini",
   "openai/o3-pro",
   "openai/o4-mini",
+  "opencode-go/claude-haiku-5-5-subscription",
   "opencode-go/deepseek-flash-subscription",
   "opencode-go/deepseek-v4-flash-vision-exp-subscription",
   "opencode-go/glm-5.3-flash-subscription",
diff --git a/packages/modelparams/src/generated/params-by-id.ts b/packages/modelparams/src/generated/params-by-id.ts
index 353f141f..b602cf0f 100644
--- a/packages/modelparams/src/generated/params-by-id.ts
+++ b/packages/modelparams/src/generated/params-by-id.ts
@@ -3123,6 +3123,12 @@ export type ParamsById = {
     max_completion_tokens: number;
     reasoning_effort: "low" | "medium" | "high" | "xhigh";
   };
+  "opencode-go/claude-haiku-5-5-subscription": {
+    max_tokens: number;
+    presence_penalty: number;
+    frequency_penalty: number;
+    "response_format.type": "text" | "json_object";
+  };
   "opencode-go/deepseek-flash-subscription": {
     max_tokens: number;
     temperature: number;