diff --git a/src/api/types/DocumentsContextWithFacts.ts b/src/api/types/DocumentsContextWithFacts.ts
index 52ef00c..9b9a0f7 100644
--- a/src/api/types/DocumentsContextWithFacts.ts
+++ b/src/api/types/DocumentsContextWithFacts.ts
@@ -7,6 +7,6 @@ import * as Corti from "../index.js";
 export interface DocumentsContextWithFacts {
     /** The type of context data that will be used in the request: `Facts`, `Transcript`, or `String`. */
     type: "facts";
-    /** An array of facts. */
+    /** An array of facts. See [guide](/textgen/documents-standard##generate-document-from-facts-as-input). */
     data: Corti.FactsContext[];
 }
diff --git a/src/api/types/DocumentsContextWithTranscript.ts b/src/api/types/DocumentsContextWithTranscript.ts
index e1a2383..4ad559d 100644
--- a/src/api/types/DocumentsContextWithTranscript.ts
+++ b/src/api/types/DocumentsContextWithTranscript.ts
@@ -7,6 +7,6 @@ import * as Corti from "../index.js";
 export interface DocumentsContextWithTranscript {
     /** The type of context data that will be used in the request: `Facts`, `Transcript`, or `String`. */
     type: "transcript";
-    /** Transcript object can accept the full transcript in one string, or individual transcript segments. */
+    /** The transcript `data.text` object can accept the full transcript in one string, alternatively pass each transcript segment into a `context` object - [see guide](/textgen/documents-standard#generate-document-from-transcript-as-input). */
     data: Corti.CommonTranscriptRequest;
 }
diff --git a/src/api/types/DocumentsCreateRequestWithTemplate.ts b/src/api/types/DocumentsCreateRequestWithTemplate.ts
index b52285c..943aaa0 100644
--- a/src/api/types/DocumentsCreateRequestWithTemplate.ts
+++ b/src/api/types/DocumentsCreateRequestWithTemplate.ts
@@ -5,7 +5,7 @@
 import * as Corti from "../index.js";
 
 export interface DocumentsCreateRequestWithTemplate {
-    /** An array of context objects. Currently accepts exactly one context object to be used as input for document generation. */
+    /** An array of context objects. Currently only accepts multiple objects when of type `transcript`. See [guide](/textgen/documents-standard#generate-document-from-transcript-as-input). */
     context: Corti.DocumentsContext[];
     /** Template details if the template should be generated during the request. */
     template: Corti.DocumentsTemplate;
diff --git a/src/api/types/DocumentsCreateRequestWithTemplateKey.ts b/src/api/types/DocumentsCreateRequestWithTemplateKey.ts
index 2a1275b..d7a3a94 100644
--- a/src/api/types/DocumentsCreateRequestWithTemplateKey.ts
+++ b/src/api/types/DocumentsCreateRequestWithTemplateKey.ts
@@ -5,9 +5,9 @@
 import * as Corti from "../index.js";
 
 export interface DocumentsCreateRequestWithTemplateKey {
-    /** An array of context objects. Currently accepts exactly one context object to be used as input for document generation. */
+    /** An array of context objects. Currently only accepts multiple objects when of type `transcript`. See [guide](/textgen/documents-standard#generate-document-from-transcript-as-input). */
     context: Corti.DocumentsContext[];
-    /** The key of the template that informs on what kind of document is to be generated. */
+    /** The key of the template referencing the sections for generating a document. */
     templateKey: string;
     /** An optional name for the document. */
     name?: string;
diff --git a/src/api/types/ErrorResponse.ts b/src/api/types/ErrorResponse.ts
index 6de73fe..7733d0a 100644
--- a/src/api/types/ErrorResponse.ts
+++ b/src/api/types/ErrorResponse.ts
@@ -3,10 +3,9 @@
  */
 
 export interface ErrorResponse {
-    requestid?: string;
+    requestid: string;
+    status: number;
     type: string;
-    status?: number;
-    title?: string;
-    details?: string;
-    instance?: string;
+    detail: string;
+    validationErrors?: Record<string, string>[];
 }
diff --git a/src/serialization/types/ErrorResponse.ts b/src/serialization/types/ErrorResponse.ts
index 56585ee..4851d53 100644
--- a/src/serialization/types/ErrorResponse.ts
+++ b/src/serialization/types/ErrorResponse.ts
@@ -8,21 +8,21 @@ import * as core from "../../core/index.js";
 
 export const ErrorResponse: core.serialization.ObjectSchema<serializers.ErrorResponse.Raw, Corti.ErrorResponse> =
     core.serialization.object({
-        requestid: core.serialization.string().optional(),
+        requestid: core.serialization.string(),
+        status: core.serialization.number(),
         type: core.serialization.string(),
-        status: core.serialization.number().optional(),
-        title: core.serialization.string().optional(),
-        details: core.serialization.string().optional(),
-        instance: core.serialization.string().optional(),
+        detail: core.serialization.string(),
+        validationErrors: core.serialization
+            .list(core.serialization.record(core.serialization.string(), core.serialization.string()))
+            .optional(),
     });
 
 export declare namespace ErrorResponse {
     export interface Raw {
-        requestid?: string | null;
+        requestid: string;
+        status: number;
         type: string;
-        status?: number | null;
-        title?: string | null;
-        details?: string | null;
-        instance?: string | null;
+        detail: string;
+        validationErrors?: Record<string, string>[] | null;
     }
 }