diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 4e952b56..45ff530b 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -92,11 +92,16 @@ jobs:
       - name: Check for changes
         id: changes
         run: |
-          if git diff --quiet HEAD -- generated/BUILD-BENCHMARKS.md README.md; then
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=true" >> "$GITHUB_OUTPUT"
+          CHANGED=false
+          # Detect modified tracked files
+          if ! git diff --quiet HEAD -- generated/BUILD-BENCHMARKS.md README.md 2>/dev/null; then
+            CHANGED=true
+          fi
+          # Detect newly created (untracked) files
+          if [ -n "$(git ls-files --others --exclude-standard generated/BUILD-BENCHMARKS.md)" ]; then
+            CHANGED=true
           fi
+          echo "changed=$CHANGED" >> "$GITHUB_OUTPUT"
 
       - name: Commit and push via PR
         if: steps.changes.outputs.changed == 'true'
@@ -212,11 +217,16 @@ jobs:
       - name: Check for changes
         id: changes
         run: |
-          if git diff --quiet HEAD -- generated/EMBEDDING-BENCHMARKS.md; then
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=true" >> "$GITHUB_OUTPUT"
+          CHANGED=false
+          # Detect modified tracked files
+          if ! git diff --quiet HEAD -- generated/EMBEDDING-BENCHMARKS.md 2>/dev/null; then
+            CHANGED=true
+          fi
+          # Detect newly created (untracked) files
+          if [ -n "$(git ls-files --others --exclude-standard generated/EMBEDDING-BENCHMARKS.md)" ]; then
+            CHANGED=true
           fi
+          echo "changed=$CHANGED" >> "$GITHUB_OUTPUT"
 
       - name: Commit and push via PR
         if: steps.changes.outputs.changed == 'true'
@@ -320,11 +330,16 @@ jobs:
       - name: Check for changes
         id: changes
         run: |
-          if git diff --quiet HEAD -- generated/QUERY-BENCHMARKS.md; then
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=true" >> "$GITHUB_OUTPUT"
+          CHANGED=false
+          # Detect modified tracked files
+          if ! git diff --quiet HEAD -- generated/QUERY-BENCHMARKS.md 2>/dev/null; then
+            CHANGED=true
+          fi
+          # Detect newly created (untracked) files
+          if [ -n "$(git ls-files --others --exclude-standard generated/QUERY-BENCHMARKS.md)" ]; then
+            CHANGED=true
           fi
+          echo "changed=$CHANGED" >> "$GITHUB_OUTPUT"
 
       - name: Commit and push via PR
         if: steps.changes.outputs.changed == 'true'
@@ -428,11 +443,16 @@ jobs:
       - name: Check for changes
         id: changes
         run: |
-          if git diff --quiet HEAD -- generated/INCREMENTAL-BENCHMARKS.md; then
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=true" >> "$GITHUB_OUTPUT"
+          CHANGED=false
+          # Detect modified tracked files
+          if ! git diff --quiet HEAD -- generated/INCREMENTAL-BENCHMARKS.md 2>/dev/null; then
+            CHANGED=true
+          fi
+          # Detect newly created (untracked) files
+          if [ -n "$(git ls-files --others --exclude-standard generated/INCREMENTAL-BENCHMARKS.md)" ]; then
+            CHANGED=true
           fi
+          echo "changed=$CHANGED" >> "$GITHUB_OUTPUT"
 
       - name: Commit and push via PR
         if: steps.changes.outputs.changed == 'true'
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index bb025640..2b755614 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -44,6 +44,8 @@ jobs:
       npm_tag: ${{ steps.compute.outputs.npm_tag }}
     steps:
       - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
 
       - name: Compute version
         id: compute
@@ -65,12 +67,21 @@ jobs:
             NPM_TAG="latest"
             echo "Stable release (manual retry): $VERSION"
           else
-            IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT"
-            DEV_PATCH=$((PATCH + 1))
+            # Use git describe to find the nearest release tag — same strategy
+            # as scripts/bench-version.js so versions are always consistent.
+            RELEASE_TAG=$(git describe --tags --match "v*" --abbrev=0 2>/dev/null || echo "")
+            if [ -n "$RELEASE_TAG" ]; then
+              COMMITS=$(git rev-list "${RELEASE_TAG}..HEAD" --count)
+              IFS='.' read -r MAJOR MINOR PATCH <<< "${RELEASE_TAG#v}"
+            else
+              COMMITS=1
+              IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT"
+            fi
+            DEV_PATCH=$((PATCH + COMMITS))
             SHORT_SHA=$(echo "${{ github.sha }}" | cut -c1-7)
             VERSION="${MAJOR}.${MINOR}.${DEV_PATCH}-dev.${SHORT_SHA}"
             NPM_TAG="dev"
-            echo "Dev release: $VERSION"
+            echo "Dev release: $VERSION (${COMMITS} commits since ${RELEASE_TAG:-none})"
           fi
 
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
diff --git a/scripts/bench-version.js b/scripts/bench-version.js
new file mode 100644
index 00000000..eaa7a75b
--- /dev/null
+++ b/scripts/bench-version.js
@@ -0,0 +1,61 @@
+/**
+ * Compute the benchmark version string from git state.
+ *
+ * Uses the same two-step strategy as publish.yml's compute-version job:
+ *   1. `git describe --tags --match "v*" --abbrev=0` → find nearest release tag
+ *   2. `git rev-list <tag>..HEAD --count` → count commits since that tag
+ *
+ * - If HEAD is exactly tagged (0 commits): returns "2.5.0"
+ * - Otherwise: returns "2.5.N-dev.hash" (e.g. "2.5.3-dev.c50f7f5")
+ *   where N = PATCH + commits since tag, hash = short commit SHA
+ *
+ * This prevents dev/dogfood benchmark runs from overwriting release data
+ * in the historical benchmark reports (which deduplicate by version).
+ */
+
+import { execFileSync } from 'node:child_process';
+
+const GIT_OPTS = { encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'] };
+
+export function getBenchmarkVersion(pkgVersion, cwd) {
+	try {
+		// Step 1: find the nearest release tag (mirrors publish.yml --abbrev=0)
+		const tag = execFileSync('git', ['describe', '--tags', '--match', 'v*', '--abbrev=0'], {
+			cwd,
+			...GIT_OPTS,
+		}).trim();
+
+		// Step 2: count commits since that tag (mirrors publish.yml git rev-list)
+		const commits = Number(
+			execFileSync('git', ['rev-list', `${tag}..HEAD`, '--count'], { cwd, ...GIT_OPTS }).trim(),
+		);
+
+		const m = tag.match(/^v(\d+)\.(\d+)\.(\d+)$/);
+		if (!m) return `${pkgVersion}-dev`;
+
+		const [, major, minor, patch] = m;
+
+		// Exact tag (0 commits since tag): return clean release version
+		if (commits === 0) return `${major}.${minor}.${patch}`;
+
+		// Dev build: MAJOR.MINOR.(PATCH+COMMITS)-dev.SHORT_SHA
+		const hash = execFileSync('git', ['rev-parse', '--short', 'HEAD'], { cwd, ...GIT_OPTS }).trim();
+		const devPatch = Number(patch) + commits;
+		return `${major}.${minor}.${devPatch}-dev.${hash}`;
+	} catch {
+		/* git not available or no tags */
+	}
+
+	// Fallback: no git or no tags — match publish.yml's no-tags behavior (PATCH+1-dev.SHA)
+	const parts = pkgVersion.split('.');
+	if (parts.length === 3) {
+		const [major, minor, patch] = parts;
+		try {
+			const hash = execFileSync('git', ['rev-parse', '--short', 'HEAD'], { cwd, ...GIT_OPTS }).trim();
+			return `${major}.${minor}.${Number(patch) + 1}-dev.${hash}`;
+		} catch {
+			return `${major}.${minor}.${Number(patch) + 1}-dev`;
+		}
+	}
+	return `${pkgVersion}-dev`;
+}
diff --git a/scripts/lib/bench-config.js b/scripts/lib/bench-config.js
index 241a6254..4564f735 100644
--- a/scripts/lib/bench-config.js
+++ b/scripts/lib/bench-config.js
@@ -13,6 +13,8 @@ import os from 'node:os';
 import path from 'node:path';
 import { pathToFileURL } from 'node:url';
 
+import { getBenchmarkVersion } from '../bench-version.js';
+
 /**
  * Parse `--version <v>` and `--npm` from process.argv.
  */
@@ -44,10 +46,11 @@ export async function resolveBenchmarkSource() {
 	const { version: cliVersion, npm } = parseArgs();
 
 	if (!npm) {
-		// Local mode — use repo src/, label as "dev" unless overridden
+		// Local mode — use repo src/, version derived from git state
 		const root = path.resolve(path.dirname(new URL(import.meta.url).pathname.replace(/^\/([A-Z]:)/, '$1')), '..', '..');
+		const pkg = JSON.parse(fs.readFileSync(path.join(root, 'package.json'), 'utf8'));
 		return {
-			version: cliVersion || 'dev',
+			version: cliVersion || getBenchmarkVersion(pkg.version, root),
 			srcDir: path.join(root, 'src'),
 			cleanup() {},
 		};
diff --git a/scripts/token-benchmark.js b/scripts/token-benchmark.js
index 7c20996e..7c75051c 100644
--- a/scripts/token-benchmark.js
+++ b/scripts/token-benchmark.js
@@ -26,10 +26,12 @@ import { fileURLToPath } from 'node:url';
 import { parseArgs } from 'node:util';
 
 import { ISSUES, extractAgentOutput, validateResult } from './token-benchmark-issues.js';
+import { getBenchmarkVersion } from './bench-version.js';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const root = path.resolve(__dirname, '..');
 const pkg = JSON.parse(fs.readFileSync(path.join(root, 'package.json'), 'utf8'));
+const benchVersion = getBenchmarkVersion(pkg.version, root);
 
 // Redirect console.log to stderr so only JSON goes to stdout
 const origLog = console.log;
@@ -590,7 +592,7 @@ async function main() {
 	console.log = origLog;
 
 	const output = {
-		version: pkg.version,
+		version: benchVersion,
 		date: new Date().toISOString().slice(0, 10),
 		model: MODEL,
 		runsPerIssue: RUNS,