diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 79313ca5..999cfc01 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.48.0"
+  ".": "4.49.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 147f6727..eeba5cf5 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 101
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-ac2f736602bc631b92de358a7edb395cf53ed506b2cb3d0494fffa31be9e2d9f.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-11f40c15fa889d9752019e8a35b82d2e7a3d42f2b42c850b469f120a5b2c47ba.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14f98925..5873a476 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 4.49.0 (2025-01-16)
+
+Full Changelog: [v4.48.0...v4.49.0](https://github.com/orbcorp/orb-node/compare/v4.48.0...v4.49.0)
+
+### Features
+
+* **api:** api update ([#468](https://github.com/orbcorp/orb-node/issues/468)) ([d4ca190](https://github.com/orbcorp/orb-node/commit/d4ca190dc612304b10422c8d000d4f5c1aa69b8f))
+
 ## 4.48.0 (2025-01-15)
 
 Full Changelog: [v4.47.4...v4.48.0](https://github.com/orbcorp/orb-node/compare/v4.47.4...v4.48.0)
diff --git a/package.json b/package.json
index 0b50872b..e872b349 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "orb-billing",
-  "version": "4.48.0",
+  "version": "4.49.0",
   "description": "The official TypeScript library for the Orb API",
   "author": "Orb <team@withorb.com>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/plans/plans.ts b/src/resources/plans/plans.ts
index 934d9c4a..0711ff18 100644
--- a/src/resources/plans/plans.ts
+++ b/src/resources/plans/plans.ts
@@ -497,6 +497,7 @@ export interface PlanCreateParams {
     | PlanCreateParams.NewPlanMatrixWithDisplayNamePrice
     | PlanCreateParams.NewPlanBulkWithProrationPrice
     | PlanCreateParams.NewPlanGroupedTieredPackagePrice
+    | PlanCreateParams.NewPlanMaxGroupTieredPrice
   >;
 
   /**
@@ -3071,6 +3072,119 @@ export namespace PlanCreateParams {
       duration_unit: 'day' | 'month';
     }
   }
+
+  export interface NewPlanMaxGroupTieredPrice {
+    /**
+     * The cadence to bill for this price on.
+     */
+    cadence: 'annual' | 'semi_annual' | 'monthly' | 'quarterly' | 'one_time' | 'custom';
+
+    /**
+     * The id of the item the plan will be associated with.
+     */
+    item_id: string;
+
+    max_group_tiered_config: Record<string, unknown>;
+
+    model_type: 'max_group_tiered';
+
+    /**
+     * The name of the price.
+     */
+    name: string;
+
+    /**
+     * The id of the billable metric for the price. Only needed if the price is
+     * usage-based.
+     */
+    billable_metric_id?: string | null;
+
+    /**
+     * If the Price represents a fixed cost, the price will be billed in-advance if
+     * this is true, and in-arrears if this is false.
+     */
+    billed_in_advance?: boolean | null;
+
+    /**
+     * For custom cadence: specifies the duration of the billing period in days or
+     * months.
+     */
+    billing_cycle_configuration?: NewPlanMaxGroupTieredPrice.BillingCycleConfiguration | null;
+
+    /**
+     * The per unit conversion rate of the price currency to the invoicing currency.
+     */
+    conversion_rate?: number | null;
+
+    /**
+     * An ISO 4217 currency string, or custom pricing unit identifier, in which this
+     * price is billed.
+     */
+    currency?: string | null;
+
+    /**
+     * An alias for the price.
+     */
+    external_price_id?: string | null;
+
+    /**
+     * If the Price represents a fixed cost, this represents the quantity of units
+     * applied.
+     */
+    fixed_price_quantity?: number | null;
+
+    /**
+     * The property used to group this price on an invoice
+     */
+    invoice_grouping_key?: string | null;
+
+    /**
+     * Within each billing cycle, specifies the cadence at which invoices are produced.
+     * If unspecified, a single invoice is produced per billing cycle.
+     */
+    invoicing_cycle_configuration?: NewPlanMaxGroupTieredPrice.InvoicingCycleConfiguration | null;
+
+    /**
+     * User-specified key/value pairs for the resource. Individual keys can be removed
+     * by setting the value to `null`, and the entire metadata mapping can be cleared
+     * by setting `metadata` to `null`.
+     */
+    metadata?: Record<string, string | null> | null;
+  }
+
+  export namespace NewPlanMaxGroupTieredPrice {
+    /**
+     * For custom cadence: specifies the duration of the billing period in days or
+     * months.
+     */
+    export interface BillingCycleConfiguration {
+      /**
+       * The duration of the billing period.
+       */
+      duration: number;
+
+      /**
+       * The unit of billing period duration.
+       */
+      duration_unit: 'day' | 'month';
+    }
+
+    /**
+     * Within each billing cycle, specifies the cadence at which invoices are produced.
+     * If unspecified, a single invoice is produced per billing cycle.
+     */
+    export interface InvoicingCycleConfiguration {
+      /**
+       * The duration of the billing period.
+       */
+      duration: number;
+
+      /**
+       * The unit of billing period duration.
+       */
+      duration_unit: 'day' | 'month';
+    }
+  }
 }
 
 export interface PlanUpdateParams {
diff --git a/src/resources/prices/prices.ts b/src/resources/prices/prices.ts
index afe39252..d69f459f 100644
--- a/src/resources/prices/prices.ts
+++ b/src/resources/prices/prices.ts
@@ -367,7 +367,8 @@ export type Price =
   | Price.GroupedWithMeteredMinimumPrice
   | Price.MatrixWithDisplayNamePrice
   | Price.BulkWithProrationPrice
-  | Price.GroupedTieredPackagePrice;
+  | Price.GroupedTieredPackagePrice
+  | Price.MaxGroupTieredPrice;
 
 export namespace Price {
   export interface UnitPrice {
@@ -3218,6 +3219,116 @@ export namespace Price {
       minimum_amount: string;
     }
   }
+
+  export interface MaxGroupTieredPrice {
+    id: string;
+
+    billable_metric: MaxGroupTieredPrice.BillableMetric | null;
+
+    billing_cycle_configuration: MaxGroupTieredPrice.BillingCycleConfiguration;
+
+    cadence: 'one_time' | 'monthly' | 'quarterly' | 'semi_annual' | 'annual' | 'custom';
+
+    conversion_rate: number | null;
+
+    created_at: string;
+
+    credit_allocation: MaxGroupTieredPrice.CreditAllocation | null;
+
+    currency: string;
+
+    discount: Shared.Discount | null;
+
+    external_price_id: string | null;
+
+    fixed_price_quantity: number | null;
+
+    invoicing_cycle_configuration: MaxGroupTieredPrice.InvoicingCycleConfiguration | null;
+
+    item: MaxGroupTieredPrice.Item;
+
+    max_group_tiered_config: Record<string, unknown>;
+
+    maximum: MaxGroupTieredPrice.Maximum | null;
+
+    maximum_amount: string | null;
+
+    /**
+     * User specified key-value pairs for the resource. If not present, this defaults
+     * to an empty dictionary. Individual keys can be removed by setting the value to
+     * `null`, and the entire metadata mapping can be cleared by setting `metadata` to
+     * `null`.
+     */
+    metadata: Record<string, string>;
+
+    minimum: MaxGroupTieredPrice.Minimum | null;
+
+    minimum_amount: string | null;
+
+    model_type: 'max_group_tiered';
+
+    name: string;
+
+    plan_phase_order: number | null;
+
+    price_type: 'usage_price' | 'fixed_price';
+  }
+
+  export namespace MaxGroupTieredPrice {
+    export interface BillableMetric {
+      id: string;
+    }
+
+    export interface BillingCycleConfiguration {
+      duration: number;
+
+      duration_unit: 'day' | 'month';
+    }
+
+    export interface CreditAllocation {
+      allows_rollover: boolean;
+
+      currency: string;
+    }
+
+    export interface InvoicingCycleConfiguration {
+      duration: number;
+
+      duration_unit: 'day' | 'month';
+    }
+
+    export interface Item {
+      id: string;
+
+      name: string;
+    }
+
+    export interface Maximum {
+      /**
+       * List of price_ids that this maximum amount applies to. For plan/plan phase
+       * maximums, this can be a subset of prices.
+       */
+      applies_to_price_ids: Array<string>;
+
+      /**
+       * Maximum amount applied
+       */
+      maximum_amount: string;
+    }
+
+    export interface Minimum {
+      /**
+       * List of price_ids that this minimum amount applies to. For plan/plan phase
+       * minimums, this can be a subset of prices.
+       */
+      applies_to_price_ids: Array<string>;
+
+      /**
+       * Minimum amount applied
+       */
+      minimum_amount: string;
+    }
+  }
 }
 
 export interface PriceEvaluateResponse {
@@ -3237,6 +3348,7 @@ export type PriceCreateParams =
   | PriceCreateParams.NewFloatingThresholdTotalAmountPrice
   | PriceCreateParams.NewFloatingTieredPackagePrice
   | PriceCreateParams.NewFloatingGroupedTieredPrice
+  | PriceCreateParams.NewFloatingMaxGroupTieredPrice
   | PriceCreateParams.NewFloatingTieredWithMinimumPrice
   | PriceCreateParams.NewFloatingPackageWithAllocationPrice
   | PriceCreateParams.NewFloatingTieredPackageWithMinimumPrice
@@ -4804,6 +4916,118 @@ export declare namespace PriceCreateParams {
     }
   }
 
+  export interface NewFloatingMaxGroupTieredPrice {
+    /**
+     * The cadence to bill for this price on.
+     */
+    cadence: 'annual' | 'semi_annual' | 'monthly' | 'quarterly' | 'one_time' | 'custom';
+
+    /**
+     * An ISO 4217 currency string for which this price is billed in.
+     */
+    currency: string;
+
+    /**
+     * The id of the item the plan will be associated with.
+     */
+    item_id: string;
+
+    max_group_tiered_config: Record<string, unknown>;
+
+    model_type: 'max_group_tiered';
+
+    /**
+     * The name of the price.
+     */
+    name: string;
+
+    /**
+     * The id of the billable metric for the price. Only needed if the price is
+     * usage-based.
+     */
+    billable_metric_id?: string | null;
+
+    /**
+     * If the Price represents a fixed cost, the price will be billed in-advance if
+     * this is true, and in-arrears if this is false.
+     */
+    billed_in_advance?: boolean | null;
+
+    /**
+     * For custom cadence: specifies the duration of the billing period in days or
+     * months.
+     */
+    billing_cycle_configuration?: PriceCreateParams.NewFloatingMaxGroupTieredPrice.BillingCycleConfiguration | null;
+
+    /**
+     * The per unit conversion rate of the price currency to the invoicing currency.
+     */
+    conversion_rate?: number | null;
+
+    /**
+     * An alias for the price.
+     */
+    external_price_id?: string | null;
+
+    /**
+     * If the Price represents a fixed cost, this represents the quantity of units
+     * applied.
+     */
+    fixed_price_quantity?: number | null;
+
+    /**
+     * The property used to group this price on an invoice
+     */
+    invoice_grouping_key?: string | null;
+
+    /**
+     * Within each billing cycle, specifies the cadence at which invoices are produced.
+     * If unspecified, a single invoice is produced per billing cycle.
+     */
+    invoicing_cycle_configuration?: PriceCreateParams.NewFloatingMaxGroupTieredPrice.InvoicingCycleConfiguration | null;
+
+    /**
+     * User-specified key/value pairs for the resource. Individual keys can be removed
+     * by setting the value to `null`, and the entire metadata mapping can be cleared
+     * by setting `metadata` to `null`.
+     */
+    metadata?: Record<string, string | null> | null;
+  }
+
+  export namespace NewFloatingMaxGroupTieredPrice {
+    /**
+     * For custom cadence: specifies the duration of the billing period in days or
+     * months.
+     */
+    export interface BillingCycleConfiguration {
+      /**
+       * The duration of the billing period.
+       */
+      duration: number;
+
+      /**
+       * The unit of billing period duration.
+       */
+      duration_unit: 'day' | 'month';
+    }
+
+    /**
+     * Within each billing cycle, specifies the cadence at which invoices are produced.
+     * If unspecified, a single invoice is produced per billing cycle.
+     */
+    export interface InvoicingCycleConfiguration {
+      /**
+       * The duration of the billing period.
+       */
+      duration: number;
+
+      /**
+       * The unit of billing period duration.
+       */
+      duration_unit: 'day' | 'month';
+    }
+  }
+
   export interface NewFloatingTieredWithMinimumPrice {
     /**
      * The cadence to bill for this price on.
diff --git a/src/resources/subscriptions.ts b/src/resources/subscriptions.ts
index 7c6c5de3..b2f10dd4 100644
--- a/src/resources/subscriptions.ts
+++ b/src/resources/subscriptions.ts
@@ -16010,6 +16010,7 @@ export namespace SubscriptionPriceIntervalsParams {
       | Add.NewFloatingThresholdTotalAmountPrice
       | Add.NewFloatingTieredPackagePrice
       | Add.NewFloatingGroupedTieredPrice
+      | Add.NewFloatingMaxGroupTieredPrice
       | Add.NewFloatingTieredWithMinimumPrice
       | Add.NewFloatingPackageWithAllocationPrice
       | Add.NewFloatingTieredPackageWithMinimumPrice
@@ -17652,6 +17653,118 @@ export namespace SubscriptionPriceIntervalsParams {
       }
     }
 
+    export interface NewFloatingMaxGroupTieredPrice {
+      /**
+       * The cadence to bill for this price on.
+       */
+      cadence: 'annual' | 'semi_annual' | 'monthly' | 'quarterly' | 'one_time' | 'custom';
+
+      /**
+       * An ISO 4217 currency string for which this price is billed in.
+       */
+      currency: string;
+
+      /**
+       * The id of the item the plan will be associated with.
+       */
+      item_id: string;
+
+      max_group_tiered_config: Record<string, unknown>;
+
+      model_type: 'max_group_tiered';
+
+      /**
+       * The name of the price.
+       */
+      name: string;
+
+      /**
+       * The id of the billable metric for the price. Only needed if the price is
+       * usage-based.
+       */
+      billable_metric_id?: string | null;
+
+      /**
+       * If the Price represents a fixed cost, the price will be billed in-advance if
+       * this is true, and in-arrears if this is false.
+       */
+      billed_in_advance?: boolean | null;
+
+      /**
+       * For custom cadence: specifies the duration of the billing period in days or
+       * months.
+       */
+      billing_cycle_configuration?: NewFloatingMaxGroupTieredPrice.BillingCycleConfiguration | null;
+
+      /**
+       * The per unit conversion rate of the price currency to the invoicing currency.
+       */
+      conversion_rate?: number | null;
+
+      /**
+       * An alias for the price.
+       */
+      external_price_id?: string | null;
+
+      /**
+       * If the Price represents a fixed cost, this represents the quantity of units
+       * applied.
+       */
+      fixed_price_quantity?: number | null;
+
+      /**
+       * The property used to group this price on an invoice
+       */
+      invoice_grouping_key?: string | null;
+
+      /**
+       * Within each billing cycle, specifies the cadence at which invoices are produced.
+       * If unspecified, a single invoice is produced per billing cycle.
+       */
+      invoicing_cycle_configuration?: NewFloatingMaxGroupTieredPrice.InvoicingCycleConfiguration | null;
+
+      /**
+       * User-specified key/value pairs for the resource. Individual keys can be removed
+       * by setting the value to `null`, and the entire metadata mapping can be cleared
+       * by setting `metadata` to `null`.
+       */
+      metadata?: Record<string, string | null> | null;
+    }
+
+    export namespace NewFloatingMaxGroupTieredPrice {
+      /**
+       * For custom cadence: specifies the duration of the billing period in days or
+       * months.
+       */
+      export interface BillingCycleConfiguration {
+        /**
+         * The duration of the billing period.
+         */
+        duration: number;
+
+        /**
+         * The unit of billing period duration.
+         */
+        duration_unit: 'day' | 'month';
+      }
+
+      /**
+       * Within each billing cycle, specifies the cadence at which invoices are produced.
+       * If unspecified, a single invoice is produced per billing cycle.
+       */
+      export interface InvoicingCycleConfiguration {
+        /**
+         * The duration of the billing period.
+         */
+        duration: number;
+
+        /**
+         * The unit of billing period duration.
+         */
+        duration_unit: 'day' | 'month';
+      }
+    }
+
     export interface NewFloatingTieredWithMinimumPrice {
       /**
        * The cadence to bill for this price on.
diff --git a/src/version.ts b/src/version.ts
index b09f3834..bb12aad4 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '4.48.0'; // x-release-please-version
+export const VERSION = '4.49.0'; // x-release-please-version