diff --git a/action.yml b/action.yml
index 1eac87a..13c853a 100644
--- a/action.yml
+++ b/action.yml
@@ -43,6 +43,10 @@ inputs:
     required: false
     description: 'Post a comment containing a Native Image build report on pull requests.'
     default: 'false'
+  native-image-pr-comparison:
+    required: false
+    description: 'Post a comment containing a comparison between the Native Image of the pr-branch and the pr-base-branch on pull.'
+    default: 'false'
   version:
     required: false
     description: 'GraalVM version (release, latest, dev).'
diff --git a/dist/cleanup/index.js b/dist/cleanup/index.js
index 3750a98..42f674c 100644
--- a/dist/cleanup/index.js
+++ b/dist/cleanup/index.js
@@ -74427,6 +74427,7 @@ const BYTES_TO_GiB = 1024 * 1024 * 1024;
 const DOCS_BASE = 'https://github.com/oracle/graal/blob/master/docs/reference-manual/native-image/BuildOutput.md';
 const INPUT_NI_JOB_REPORTS = 'native-image-job-reports';
 const INPUT_NI_PR_REPORTS = 'native-image-pr-reports';
+const INPUT_NI_PR_COMPARISON = 'native-image-pr-comparison';
 const NATIVE_IMAGE_CONFIG_FILE = (0, path_1.join)((0, os_1.tmpdir)(), 'native-image-options.properties');
 const NATIVE_IMAGE_CONFIG_FILE_ENV = 'NATIVE_IMAGE_CONFIG_FILE';
 function setUpNativeImageBuildReports(isGraalVMforJDK17OrLater, graalVMVersion) {
@@ -74458,9 +74459,6 @@ function generateReports() {
                 return;
             }
             const buildOutput = JSON.parse(fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8'));
-            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
-            yield (0, utils_1.createRef)(treeSha);
-            const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
             const report = createReport(buildOutput);
             if (areJobReportsEnabled()) {
                 core.summary.addRaw(report);
@@ -74469,8 +74467,12 @@ function generateReports() {
             if (arePRReportsEnabled()) {
                 yield (0, utils_1.createPRComment)(report);
             }
-            const prBaseReport = createPRComparison(buildOutput, prMetrics);
-            yield (0, utils_1.createPRComment)(prBaseReport);
+            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
+            yield (0, utils_1.createRef)(treeSha);
+            if (arePRBaseComparisonEnabled()) {
+                const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
+                yield (0, utils_1.createPRComment)(createPRComparison(buildOutput, prMetrics));
+            }
         }
     });
 }
@@ -74481,6 +74483,9 @@ function areJobReportsEnabled() {
 function arePRReportsEnabled() {
     return (0, utils_1.isPREvent)() && core.getInput(INPUT_NI_PR_REPORTS) === 'true';
 }
+function arePRBaseComparisonEnabled() {
+    return (0, utils_1.isPREvent)() && core.getInput(INPUT_NI_PR_COMPARISON) === 'true';
+}
 function getNativeImageOptionsFile() {
     let optionsFile = process.env[NATIVE_IMAGE_CONFIG_FILE_ENV];
     if (optionsFile === undefined) {
@@ -74548,6 +74553,30 @@ function createPRComparison(dataRecent, dataBase) {
   </tbody>
 </table>
 
+\`\`\`mermaid
+gantt
+    title Native Image Size Details 
+    todayMarker off
+    dateFormat  X
+    axisFormat %s
+
+    section Code area
+    ${recentBranch} (${bytesToHuman(detailsRecent.code_area.bytes)})   : active, 0, ${detailsRecent.code_area.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.code_area.bytes)})   : 0, ${detailsBase.code_area.bytes / 1000000}
+    
+    section Image heap
+    ${recentBranch} (${bytesToHuman(detailsRecent.image_heap.bytes)})   : active, 0, ${detailsRecent.image_heap.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.image_heap.bytes)})   : 0, ${detailsBase.image_heap.bytes / 1000000}
+    
+    section Other data
+    ${recentBranch} (${bytesToHuman(otherBytesRecent)})   : active, 0, ${otherBytesRecent / 1000000}
+    ${baseBranch} (${bytesToHuman(otherBytesBase)})   : 0, ${otherBytesBase / 1000000}
+
+    section Total
+    ${recentBranch} (${bytesToHuman(detailsRecent.total_bytes)})   : active, 0, ${detailsRecent.total_bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.total_bytes)})   : 0, ${detailsBase.total_bytes / 1000000}
+\`\`\`
+
 <em>Report generated by <a href="https://github.com/marketplace/actions/github-action-for-graalvm" target="_blank">setup-graalvm</a>.</em>`;
 }
 function createReport(data) {
diff --git a/dist/main/index.js b/dist/main/index.js
index d97a5e1..cb39e75 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -74526,6 +74526,7 @@ const BYTES_TO_GiB = 1024 * 1024 * 1024;
 const DOCS_BASE = 'https://github.com/oracle/graal/blob/master/docs/reference-manual/native-image/BuildOutput.md';
 const INPUT_NI_JOB_REPORTS = 'native-image-job-reports';
 const INPUT_NI_PR_REPORTS = 'native-image-pr-reports';
+const INPUT_NI_PR_COMPARISON = 'native-image-pr-comparison';
 const NATIVE_IMAGE_CONFIG_FILE = (0, path_1.join)((0, os_1.tmpdir)(), 'native-image-options.properties');
 const NATIVE_IMAGE_CONFIG_FILE_ENV = 'NATIVE_IMAGE_CONFIG_FILE';
 function setUpNativeImageBuildReports(isGraalVMforJDK17OrLater, graalVMVersion) {
@@ -74557,9 +74558,6 @@ function generateReports() {
                 return;
             }
             const buildOutput = JSON.parse(fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8'));
-            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
-            yield (0, utils_1.createRef)(treeSha);
-            const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
             const report = createReport(buildOutput);
             if (areJobReportsEnabled()) {
                 core.summary.addRaw(report);
@@ -74568,8 +74566,12 @@ function generateReports() {
             if (arePRReportsEnabled()) {
                 yield (0, utils_1.createPRComment)(report);
             }
-            const prBaseReport = createPRComparison(buildOutput, prMetrics);
-            yield (0, utils_1.createPRComment)(prBaseReport);
+            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
+            yield (0, utils_1.createRef)(treeSha);
+            if (arePRBaseComparisonEnabled()) {
+                const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
+                yield (0, utils_1.createPRComment)(createPRComparison(buildOutput, prMetrics));
+            }
         }
     });
 }
@@ -74580,6 +74582,9 @@ function areJobReportsEnabled() {
 function arePRReportsEnabled() {
     return (0, utils_1.isPREvent)() && core.getInput(INPUT_NI_PR_REPORTS) === 'true';
 }
+function arePRBaseComparisonEnabled() {
+    return (0, utils_1.isPREvent)() && core.getInput(INPUT_NI_PR_COMPARISON) === 'true';
+}
 function getNativeImageOptionsFile() {
     let optionsFile = process.env[NATIVE_IMAGE_CONFIG_FILE_ENV];
     if (optionsFile === undefined) {
@@ -74647,6 +74652,30 @@ function createPRComparison(dataRecent, dataBase) {
   </tbody>
 </table>
 
+\`\`\`mermaid
+gantt
+    title Native Image Size Details 
+    todayMarker off
+    dateFormat  X
+    axisFormat %s
+
+    section Code area
+    ${recentBranch} (${bytesToHuman(detailsRecent.code_area.bytes)})   : active, 0, ${detailsRecent.code_area.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.code_area.bytes)})   : 0, ${detailsBase.code_area.bytes / 1000000}
+    
+    section Image heap
+    ${recentBranch} (${bytesToHuman(detailsRecent.image_heap.bytes)})   : active, 0, ${detailsRecent.image_heap.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.image_heap.bytes)})   : 0, ${detailsBase.image_heap.bytes / 1000000}
+    
+    section Other data
+    ${recentBranch} (${bytesToHuman(otherBytesRecent)})   : active, 0, ${otherBytesRecent / 1000000}
+    ${baseBranch} (${bytesToHuman(otherBytesBase)})   : 0, ${otherBytesBase / 1000000}
+
+    section Total
+    ${recentBranch} (${bytesToHuman(detailsRecent.total_bytes)})   : active, 0, ${detailsRecent.total_bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.total_bytes)})   : 0, ${detailsBase.total_bytes / 1000000}
+\`\`\`
+
 <em>Report generated by <a href="https://github.com/marketplace/actions/github-action-for-graalvm" target="_blank">setup-graalvm</a>.</em>`;
 }
 function createReport(data) {
diff --git a/src/features/reports.ts b/src/features/reports.ts
index 0c680cf..c4df1cd 100644
--- a/src/features/reports.ts
+++ b/src/features/reports.ts
@@ -15,6 +15,7 @@ const DOCS_BASE =
     'https://github.com/oracle/graal/blob/master/docs/reference-manual/native-image/BuildOutput.md'
 const INPUT_NI_JOB_REPORTS = 'native-image-job-reports'
 const INPUT_NI_PR_REPORTS = 'native-image-pr-reports'
+const INPUT_NI_PR_COMPARISON = 'native-image-pr-comparison'
 const NATIVE_IMAGE_CONFIG_FILE = join(
     tmpdir(),
     'native-image-options.properties'
@@ -128,12 +129,6 @@ export async function generateReports(): Promise<void> {
         fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8')
     )
 
-    const treeSha = await createTree(JSON.stringify(buildOutput))
-    await createRef(treeSha)
-    const prMetrics: BuildOutput = JSON.parse(
-        await getPrBaseBranchMetrics()
-    )
-
     const report = createReport(buildOutput)
     if (areJobReportsEnabled()) {
       core.summary.addRaw(report)
@@ -142,8 +137,14 @@ export async function generateReports(): Promise<void> {
     if (arePRReportsEnabled()) {
       await createPRComment(report)
     }
-    const prBaseReport = createPRComparison(buildOutput, prMetrics)
-    await createPRComment(prBaseReport)
+    const treeSha = await createTree(JSON.stringify(buildOutput))
+    await createRef(treeSha)
+    if (arePRBaseComparisonEnabled()) {
+      const prMetrics: BuildOutput = JSON.parse(
+          await getPrBaseBranchMetrics()
+      )
+      await createPRComment(createPRComparison(buildOutput, prMetrics))
+    }
   }
 }
 
@@ -155,6 +156,10 @@ function arePRReportsEnabled(): boolean {
   return isPREvent() && core.getInput(INPUT_NI_PR_REPORTS) === 'true'
 }
 
+function arePRBaseComparisonEnabled(): boolean {
+  return isPREvent() && core.getInput(INPUT_NI_PR_COMPARISON) === 'true'
+}
+
 function getNativeImageOptionsFile(): string {
   let optionsFile = process.env[NATIVE_IMAGE_CONFIG_FILE_ENV]
   if (optionsFile === undefined) {
@@ -228,6 +233,30 @@ function createPRComparison(dataRecent: BuildOutput, dataBase: BuildOutput): str
   </tbody>
 </table>
 
+\`\`\`mermaid
+gantt
+    title Native Image Size Details 
+    todayMarker off
+    dateFormat  X
+    axisFormat %s
+
+    section Code area
+    ${recentBranch} (${bytesToHuman(detailsRecent.code_area.bytes)})   : active, 0, ${detailsRecent.code_area.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.code_area.bytes)})   : 0, ${detailsBase.code_area.bytes / 1000000}
+    
+    section Image heap
+    ${recentBranch} (${bytesToHuman(detailsRecent.image_heap.bytes)})   : active, 0, ${detailsRecent.image_heap.bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.image_heap.bytes)})   : 0, ${detailsBase.image_heap.bytes / 1000000}
+    
+    section Other data
+    ${recentBranch} (${bytesToHuman(otherBytesRecent)})   : active, 0, ${otherBytesRecent / 1000000}
+    ${baseBranch} (${bytesToHuman(otherBytesBase)})   : 0, ${otherBytesBase / 1000000}
+
+    section Total
+    ${recentBranch} (${bytesToHuman(detailsRecent.total_bytes)})   : active, 0, ${detailsRecent.total_bytes / 1000000}
+    ${baseBranch} (${bytesToHuman(detailsBase.total_bytes)})   : 0, ${detailsBase.total_bytes / 1000000}
+\`\`\`
+
 <em>Report generated by <a href="https://github.com/marketplace/actions/github-action-for-graalvm" target="_blank">setup-graalvm</a>.</em>`
 }