diff --git a/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.spec.ts b/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.spec.ts
new file mode 100644
index 0000000000..e583dfd24c
--- /dev/null
+++ b/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.spec.ts
@@ -0,0 +1,38 @@
+import { cleanVirtualFileSystem, useVirtualFileSystem } from '@o3r/test-helpers';
+import { readFile } from 'node:fs/promises';
+import { dirname, join } from 'node:path';
+
+describe('Copy Referenced Files', () => {
+  const virtualFileSystem = useVirtualFileSystem();
+  const copyReferencedFiles = require('./copy-referenced-files').copyReferencedFiles;
+
+  const migrationScriptMocksPath = join(__dirname, '../../../../testing/mocks');
+
+  const copyMockFile = async (virtualPath: string, realPath: string) => {
+    if (!virtualFileSystem.existsSync(dirname(virtualPath))) {
+      await virtualFileSystem.promises.mkdir(dirname(virtualPath), {recursive: true});
+    }
+    await virtualFileSystem.promises.writeFile(virtualPath, await readFile(join(migrationScriptMocksPath, realPath), {encoding: 'utf8'}));
+  };
+
+  afterAll(() => {
+    cleanVirtualFileSystem();
+  });
+
+  it('should copy the local files referenced in the spec', async () => {
+    const specFilePath = '../models/split-spec/split-spec.yaml';
+    const outputDirectory = './local-references';
+    await virtualFileSystem.promises.mkdir(dirname(specFilePath), {recursive: true});
+    await copyMockFile(specFilePath, 'split-spec/split-spec.yaml');
+    await copyMockFile('../models/split-spec/spec-chunk1.yaml', 'split-spec/spec-chunk1.yaml');
+    await copyMockFile('../models/spec-chunk2.yaml', 'spec-chunk2.yaml');
+    await copyMockFile('../models/spec-chunk3/spec-chunk3.yaml', 'spec-chunk3/spec-chunk3.yaml');
+    await copyMockFile('../models/spec-chunk4/spec-chunk4.yaml', 'spec-chunk4/spec-chunk4.yaml');
+    const baseRelativePath = await copyReferencedFiles(specFilePath, outputDirectory);
+    expect(baseRelativePath).toMatch(/^local-references[\\/]split-spec$/);
+    expect(virtualFileSystem.existsSync(join(outputDirectory, 'split-spec/spec-chunk1.yaml'))).toBe(true);
+    expect(virtualFileSystem.existsSync(join(outputDirectory, 'spec-chunk2.yaml'))).toBe(true);
+    expect(virtualFileSystem.existsSync(join(outputDirectory, 'spec-chunk3/spec-chunk3.yaml'))).toBe(true);
+    expect(virtualFileSystem.existsSync(join(outputDirectory, 'spec-chunk4/spec-chunk4.yaml'))).toBe(true);
+  });
+});
diff --git a/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.ts b/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.ts
new file mode 100644
index 0000000000..e87b55727d
--- /dev/null
+++ b/packages/@ama-sdk/schematics/schematics/typescript/core/helpers/copy-referenced-files.ts
@@ -0,0 +1,89 @@
+import { existsSync } from 'node:fs';
+import { copyFile, mkdir, readFile, rmdir } from 'node:fs/promises';
+import { dirname, join, relative, resolve } from 'node:path';
+
+const refMatcher = /\B['"]?[$]ref['"]?\s*:\s*([^#\n]+)/g;
+
+/**
+ * Extract the list of local references from a single spec file content
+ * @param specContent
+ * @param basePath
+ */
+function extractRefPaths(specContent: string, basePath: string): string[] {
+  const refs = specContent.match(refMatcher);
+  return refs ?
+    refs
+      .map((capture) => capture.replace(refMatcher, '$1').replace(/['"]/g, ''))
+      .filter((refPath) => refPath.startsWith('.'))
+      .map((refPath) => join(basePath, refPath))
+    : [];
+}
+
+/**
+ * Recursively extract the list of local references starting from the input spec file
+ * @param specFilePath
+ * @param referenceFilePath
+ * @param visited
+ */
+async function extractRefPathRecursive(specFilePath: string, referenceFilePath: string, visited: Set<string>): Promise<string[]> {
+  const resolvedFilePath = resolve(specFilePath);
+  const resolvedReferenceFilePath = resolve(referenceFilePath);
+  if (!visited.has(resolvedFilePath)) {
+    visited.add(resolvedFilePath);
+
+    const specContent = await readFile(specFilePath, {encoding: 'utf8'});
+    const refPaths = extractRefPaths(specContent, relative(dirname(referenceFilePath), dirname(specFilePath)))
+      .filter((ref) => resolve(dirname(referenceFilePath), ref) !== resolvedReferenceFilePath);
+    const recursiveRefPaths = await Promise.all(
+      refPaths.map((refPath) => extractRefPathRecursive(join(dirname(referenceFilePath), refPath), referenceFilePath, visited))
+    );
+    return [
+      ...refPaths,
+      ...recursiveRefPaths.flat()
+    ];
+  }
+  return [];
+}
+
+/**
+ * Replace all the local relative references using the new base relative path
+ * @param specContent
+ * @param newBaseRelativePath
+ */
+export function updateLocalRelativeRefs(specContent: string, newBaseRelativePath: string) {
+  return specContent.replace(refMatcher, (match, ref: string) =>
+    match.replace(ref, join(newBaseRelativePath, ref)));
+}
+
+/**
+ * Copy the local files referenced in the input spec file to the output directory
+ * @param specFilePath
+ * @param outputDirectory
+ */
+export async function copyReferencedFiles(specFilePath: string, outputDirectory: string) {
+  const refPaths = await extractRefPathRecursive(specFilePath, specFilePath, new Set());
+  if (refPaths.length) {
+    if (existsSync(outputDirectory)) {
+      await rmdir(outputDirectory);
+    }
+    await mkdir(outputDirectory, { recursive: true });
+
+    // Calculate the lowest level base path to keep the same directory structure
+    const maxDepth = Math.max(...refPaths.map((refPath) => refPath.split('..').length));
+    const basePath = join(specFilePath, '../'.repeat(maxDepth));
+    const baseRelativePath = relative(basePath, dirname(specFilePath));
+
+    // Copy the files
+    await Promise.all(refPaths.map(async (refPath) => {
+      const sourcePath = join(dirname(specFilePath), refPath);
+      const destPath = join(outputDirectory, baseRelativePath, refPath);
+      if (!existsSync(dirname(destPath))) {
+        await mkdir(dirname(destPath), { recursive: true });
+      }
+      await copyFile(sourcePath, destPath);
+    }));
+
+    return join(outputDirectory, baseRelativePath);
+  }
+  return '';
+}
diff --git a/packages/@ama-sdk/schematics/schematics/typescript/core/index.ts b/packages/@ama-sdk/schematics/schematics/typescript/core/index.ts
index cb3a112be0..3213addc15 100644
--- a/packages/@ama-sdk/schematics/schematics/typescript/core/index.ts
+++ b/packages/@ama-sdk/schematics/schematics/typescript/core/index.ts
@@ -24,6 +24,7 @@ import { OpenApiCliOptions } from '../../code-generator/open-api-cli-generator/o
 import { treeGlob } from '../../helpers/tree-glob';
 import { NgGenerateTypescriptSDKCoreSchematicsSchema } from './schema';
 import { OpenApiCliGenerator } from '../../code-generator/open-api-cli-generator/open-api-cli.generator';
+import { copyReferencedFiles, updateLocalRelativeRefs } from './helpers/copy-referenced-files';
 import { generateOperationFinderFromSingleFile } from './helpers/path-extractor';
 
 const JAVA_OPTIONS = ['specPath', 'specConfigPath', 'globalProperty', 'outputPath'];
@@ -153,10 +154,17 @@ function ngGenerateTypescriptSDKFn(options: NgGenerateTypescriptSDKCoreSchematic
     let specContent!: string;
     if (URL.canParse(generatorOptions.specPath) && (new URL(generatorOptions.specPath)).protocol.startsWith('http')) {
       specContent = await (await fetch(generatorOptions.specPath)).text();
+      specContent = updateLocalRelativeRefs(specContent, path.dirname(generatorOptions.specPath));
     } else {
       const specPath = path.isAbsolute(generatorOptions.specPath) || !options.directory ?
         generatorOptions.specPath : path.join(options.directory, generatorOptions.specPath);
       specContent = readFileSync(specPath, {encoding: 'utf-8'}).toString();
+
+      // TODO would be better to create files on tree instead of FS
+      const newRelativePath = await copyReferencedFiles(specPath, './spec-local-references');
+      if (newRelativePath) {
+        specContent = updateLocalRelativeRefs(specContent, newRelativePath);
+      }
     }
 
     try {
diff --git a/packages/@ama-sdk/schematics/testing/mocks/spec-chunk2.yaml b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk2.yaml
new file mode 100644
index 0000000000..bb5b30a0db
--- /dev/null
+++ b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk2.yaml
@@ -0,0 +1,9 @@
+title: Pet
+type: object
+properties:
+  id:
+    type: integer
+    format: int64
+    example: 10
+  category:
+    $ref: './split-spec/split-spec.yaml#/components/schemas/Category'
diff --git a/packages/@ama-sdk/schematics/testing/mocks/spec-chunk3/spec-chunk3.yaml b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk3/spec-chunk3.yaml
new file mode 100644
index 0000000000..950f434f21
--- /dev/null
+++ b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk3/spec-chunk3.yaml
@@ -0,0 +1,9 @@
+title: Pet
+type: object
+properties:
+  id:
+    type: integer
+    format: int64
+    example: 10
+  category:
+    $ref: '../spec-chunk4/spec-chunk4.yaml#/components/schemas/Category'
diff --git a/packages/@ama-sdk/schematics/testing/mocks/spec-chunk4/spec-chunk4.yaml b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk4/spec-chunk4.yaml
new file mode 100644
index 0000000000..c600013052
--- /dev/null
+++ b/packages/@ama-sdk/schematics/testing/mocks/spec-chunk4/spec-chunk4.yaml
@@ -0,0 +1,12 @@
+components:
+  schemas:
+    Category:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          example: 10
+        name:
+          type: string
+          example: "test"
diff --git a/packages/@ama-sdk/schematics/testing/mocks/split-spec/spec-chunk1.yaml b/packages/@ama-sdk/schematics/testing/mocks/split-spec/spec-chunk1.yaml
new file mode 100644
index 0000000000..7273682c85
--- /dev/null
+++ b/packages/@ama-sdk/schematics/testing/mocks/split-spec/spec-chunk1.yaml
@@ -0,0 +1,9 @@
+title: Pet
+type: object
+properties:
+  id:
+    type: integer
+    format: int64
+    example: 10
+  category:
+    $ref: './split-spec.yaml#/components/schemas/Category'
diff --git a/packages/@ama-sdk/schematics/testing/mocks/split-spec/split-spec.yaml b/packages/@ama-sdk/schematics/testing/mocks/split-spec/split-spec.yaml
new file mode 100644
index 0000000000..09bb4c7f42
--- /dev/null
+++ b/packages/@ama-sdk/schematics/testing/mocks/split-spec/split-spec.yaml
@@ -0,0 +1,45 @@
+openapi: 3.0.2
+info:
+  description: test
+  title: test
+  version: 0.0.0
+paths:
+  /test:
+    get:
+      responses:
+        '200':
+          description: test
+          content:
+            application/json:
+              schema:
+                $ref: './spec-chunk1.yaml'
+  /test2:
+    get:
+      responses:
+        '200':
+          description: test
+          content:
+            application/json:
+              schema:
+                $ref: '../spec-chunk2.yaml'
+  /test3:
+    get:
+      responses:
+        '200':
+          description: test
+          content:
+            application/json:
+              schema:
+                $ref: '../spec-chunk3/spec-chunk3.yaml'
+components:
+  schemas:
+    Category:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          example: 10
+        name:
+          type: string
+          example: "test"