diff --git a/packages/sdk/js/src/gen/client/client.gen.ts b/packages/sdk/js/src/gen/client/client.gen.ts
index 34a8d0beceb..95db8ba84e7 100644
--- a/packages/sdk/js/src/gen/client/client.gen.ts
+++ b/packages/sdk/js/src/gen/client/client.gen.ts
@@ -114,10 +114,41 @@ export const createClient = (config: Config = {}): Client => {
         case "arrayBuffer":
         case "blob":
         case "formData":
-        case "json":
         case "text":
           data = await response[parseAs]()
           break
+        case "json":
+          try {
+            data = await response.json()
+          } catch (parseError) {
+            // Handle JSON parsing errors with more context
+            const errorMessage = parseError instanceof Error ? parseError.message : String(parseError)
+            const enhancedError = new Error(
+              `Failed to parse JSON response: ${errorMessage}. ` +
+                `Status: ${response.status}, URL: ${response.url}`
+            )
+            ;(enhancedError as any).cause = parseError
+            ;(enhancedError as any).response = response
+
+            let finalError: unknown = enhancedError
+            for (const fn of interceptors.error._fns) {
+              if (fn) {
+                finalError = await fn(enhancedError, response, request, opts)
+              }
+            }
+
+            if (opts.throwOnError) {
+              throw finalError
+            }
+
+            return opts.responseStyle === "data"
+              ? undefined
+              : {
+                  error: finalError,
+                  ...result,
+                }
+          }
+          break
         case "stream":
           return opts.responseStyle === "data"
             ? response.body
diff --git a/packages/sdk/js/src/v2/gen/client/client.gen.ts b/packages/sdk/js/src/v2/gen/client/client.gen.ts
index 47f1403429d..756a0675297 100644
--- a/packages/sdk/js/src/v2/gen/client/client.gen.ts
+++ b/packages/sdk/js/src/v2/gen/client/client.gen.ts
@@ -162,10 +162,41 @@ export const createClient = (config: Config = {}): Client => {
         case "arrayBuffer":
         case "blob":
         case "formData":
-        case "json":
         case "text":
           data = await response[parseAs]()
           break
+        case "json":
+          try {
+            data = await response.json()
+          } catch (parseError) {
+            // Handle JSON parsing errors with more context
+            const errorMessage = parseError instanceof Error ? parseError.message : String(parseError)
+            const enhancedError = new Error(
+              `Failed to parse JSON response: ${errorMessage}. ` +
+                `Status: ${response.status}, URL: ${response.url}`
+            )
+            ;(enhancedError as any).cause = parseError
+            ;(enhancedError as any).response = response
+
+            let finalError: unknown = enhancedError
+            for (const fn of interceptors.error.fns) {
+              if (fn) {
+                finalError = await fn(enhancedError, response, request, opts)
+              }
+            }
+
+            if (opts.throwOnError) {
+              throw finalError
+            }
+
+            return opts.responseStyle === "data"
+              ? undefined
+              : {
+                  error: finalError,
+                  ...result,
+                }
+          }
+          break
         case "stream":
           return opts.responseStyle === "data"
             ? response.body