diff --git a/.changeset/proud-cranes-click.md b/.changeset/proud-cranes-click.md
new file mode 100644
index 000000000..81133bff2
--- /dev/null
+++ b/.changeset/proud-cranes-click.md
@@ -0,0 +1,5 @@
+---
+type: Changed
+pr: 2173
+---
+**Long-context model names render compactly in the statusline** — the verbose " (1M context)" suffix Claude Code appends to the model display name now collapses to a compact " (1M)" badge (tolerant of future window sizes and the abbreviated "ctx" variant: "(500K context)" → "(500K)", "(1M ctx)" → "(1M)"). Lossless — the long-context signal stays, the 12 characters of width don't. (#2160)
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 59ef61380..5578e0bfd 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -286,7 +286,7 @@ Runtime hooks that integrate with the host AI agent:
 
 | Hook | Event | Purpose |
 |------|-------|---------|
-| `gsd-statusline.js` | `statusLine` | Displays model, task, directory, and context usage bar |
+| `gsd-statusline.js` | `statusLine` | Displays model (long-context suffixes like `(1M context)` collapse to a compact `(1M)` badge), task, directory, and context usage bar |
 | `gsd-context-monitor.js` | `PostToolUse` / `AfterTool` | Injects agent-facing context warnings at 35%/25% remaining |
 | `gsd-check-update.js` | `SessionStart` | Foreground trigger for the background update check |
 | `gsd-ensure-canonical-path.js` | `SessionStart` | For Claude Code plugin installs, symlinks `~/.claude/gsd-core/{bin,contexts,references,templates,workflows}` to the plugin's bundled tree so `@~/.claude/gsd-core/...` includes resolve; runs first in `SessionStart`, no-op in classic installs, self-heals after `claude plugin update` (#997) |
diff --git a/hooks/gsd-statusline.js b/hooks/gsd-statusline.js
index ffe7679fb..7b6a3b007 100755
--- a/hooks/gsd-statusline.js
+++ b/hooks/gsd-statusline.js
@@ -319,6 +319,22 @@ function contextTokenSuffix(currentUsage) {
   return total > 0 ? ` (${formatTokens(total)})` : '';
 }
 
+// --- Model name --------------------------------------------------------------
+
+/**
+ * Collapse the verbose " (… context)" model-name suffix Claude Code sends for
+ * long-context sessions (e.g. "Sonnet 4.5 (1M context)") to a compact badge
+ * (" (1M)"). The signal is preserved; the width isn't. Tolerant by design
+ * (issue #2160 approval condition): any trailing parenthesized token ending
+ * in "context" is collapsed — a future "(500K context)" becomes "(500K)"
+ * rather than silently no-opping. The token's own casing is preserved.
+ * Any other display name passes through unchanged.
+ */
+function compactModelName(name) {
+  if (typeof name !== 'string') return name;
+  return name.replace(/\s*\(([^)]+?)\s+(?:context|ctx)\)$/i, ' ($1)');
+}
+
 // --- Git segment (opt-in) ------------------------------------------------------
 //
 // Opt-in via `statusline.show_git: true` in .planning/config.json. Renders the
@@ -409,7 +425,7 @@ function runStatusline() {
   clearTimeout(stdinTimeout);
   try {
     const data = JSON.parse(input);
-    const model = data.model?.display_name || 'Claude';
+    const model = compactModelName(data.model?.display_name || 'Claude');
     const dir = data.workspace?.current_dir || process.cwd();
     const session = data.session_id || '';
     const remaining = data.context_window?.remaining_percentage;
@@ -659,6 +675,7 @@ module.exports = {
   evaluateUpdateCache,
   formatTokens,
   contextTokenSuffix,
+  compactModelName,
   readGitStatus, parseGitStatus, buildGitSegment,
 };
 
@@ -667,7 +684,7 @@ module.exports = {
  * testing without feeding stdin. Returns the rendered string.
  */
 function renderStatusline(data) {
-  const model = data.model?.display_name || 'Claude';
+  const model = compactModelName(data.model?.display_name || 'Claude');
   const dir = data.workspace?.current_dir || process.cwd();
   const dirname = path.basename(dir);
 
diff --git a/tests/fixtures/golden-install-parity/antigravity.json b/tests/fixtures/golden-install-parity/antigravity.json
index 53518e4ef..fa4959393 100644
--- a/tests/fixtures/golden-install-parity/antigravity.json
+++ b/tests/fixtures/golden-install-parity/antigravity.json
@@ -328,7 +328,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "eefea61f9b0e464c",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "25996df685a0dac9",
+  "hooks/gsd-statusline.js": "e284419f4ce60383",
   "hooks/gsd-update-banner.js": "55143a25f978f301",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/augment.json b/tests/fixtures/golden-install-parity/augment.json
index 5a95390ad..b17bce74d 100644
--- a/tests/fixtures/golden-install-parity/augment.json
+++ b/tests/fixtures/golden-install-parity/augment.json
@@ -399,7 +399,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "c8800819f7443a15",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "2fab68f4fd190331",
+  "hooks/gsd-statusline.js": "05144fab95be6e45",
   "hooks/gsd-update-banner.js": "55143a25f978f301",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/claude-local.json b/tests/fixtures/golden-install-parity/claude-local.json
index b73f7ae5a..298fe2aa6 100644
--- a/tests/fixtures/golden-install-parity/claude-local.json
+++ b/tests/fixtures/golden-install-parity/claude-local.json
@@ -398,7 +398,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "00d2449afefd2e5f",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "4ad7c2f59577c5bc",
+  "hooks/gsd-statusline.js": "5d2c06224db20d23",
   "hooks/gsd-update-banner.js": "b457746cb76c1957",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/claude.json b/tests/fixtures/golden-install-parity/claude.json
index 74156c173..06633d0f2 100644
--- a/tests/fixtures/golden-install-parity/claude.json
+++ b/tests/fixtures/golden-install-parity/claude.json
@@ -327,7 +327,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "00d2449afefd2e5f",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "4ad7c2f59577c5bc",
+  "hooks/gsd-statusline.js": "5d2c06224db20d23",
   "hooks/gsd-update-banner.js": "b457746cb76c1957",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/codebuddy.json b/tests/fixtures/golden-install-parity/codebuddy.json
index 60f20de40..9c9ae39a5 100644
--- a/tests/fixtures/golden-install-parity/codebuddy.json
+++ b/tests/fixtures/golden-install-parity/codebuddy.json
@@ -399,7 +399,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "7f7a7615b303369a",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "29cdce15038d1ab1",
+  "hooks/gsd-statusline.js": "49fe17737e4565f9",
   "hooks/gsd-update-banner.js": "55143a25f978f301",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/hermes.json b/tests/fixtures/golden-install-parity/hermes.json
index ca4301a01..c3820f81b 100644
--- a/tests/fixtures/golden-install-parity/hermes.json
+++ b/tests/fixtures/golden-install-parity/hermes.json
@@ -328,7 +328,7 @@
   "hooks/gsd-read-guard.js": "1f58b020a91f032b",
   "hooks/gsd-read-injection-scanner.js": "f358eca3fa1eab24",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "884347ccd6549f29",
+  "hooks/gsd-statusline.js": "815e107016e994a1",
   "hooks/gsd-update-banner.js": "b457746cb76c1957",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/kimi.json b/tests/fixtures/golden-install-parity/kimi.json
index 21ea43a53..4b638fcb9 100644
--- a/tests/fixtures/golden-install-parity/kimi.json
+++ b/tests/fixtures/golden-install-parity/kimi.json
@@ -18,7 +18,7 @@
   ".kimi/hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   ".kimi/hooks/gsd-read-injection-scanner.js": "c519598b9257aafa",
   ".kimi/hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  ".kimi/hooks/gsd-statusline.js": "be35341758d50fa5",
+  ".kimi/hooks/gsd-statusline.js": "e0a50e21a1e9aeb6",
   ".kimi/hooks/gsd-update-banner.js": "55143a25f978f301",
   ".kimi/hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   ".kimi/hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/opencode.json b/tests/fixtures/golden-install-parity/opencode.json
index 2b49ba506..256b45f9a 100644
--- a/tests/fixtures/golden-install-parity/opencode.json
+++ b/tests/fixtures/golden-install-parity/opencode.json
@@ -399,7 +399,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "f72060dfe035f706",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "6fcb59ad86d2d0ea",
+  "hooks/gsd-statusline.js": "f93d64704cba14fd",
   "hooks/gsd-update-banner.js": "55143a25f978f301",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/pi.json b/tests/fixtures/golden-install-parity/pi.json
index bcceabcc6..5045a1765 100644
--- a/tests/fixtures/golden-install-parity/pi.json
+++ b/tests/fixtures/golden-install-parity/pi.json
@@ -295,7 +295,7 @@
   "hooks/gsd-read-guard.js": "9e423cd03e2d1b16",
   "hooks/gsd-read-injection-scanner.js": "f454242c010804cf",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "daa1a98fde95ccaf",
+  "hooks/gsd-statusline.js": "239c1b15d1ff4ef9",
   "hooks/gsd-update-banner.js": "55143a25f978f301",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/fixtures/golden-install-parity/qwen.json b/tests/fixtures/golden-install-parity/qwen.json
index 00c538545..36ddf63e9 100644
--- a/tests/fixtures/golden-install-parity/qwen.json
+++ b/tests/fixtures/golden-install-parity/qwen.json
@@ -328,7 +328,7 @@
   "hooks/gsd-read-guard.js": "2c8d417d12b51040",
   "hooks/gsd-read-injection-scanner.js": "396574bd25e99ff9",
   "hooks/gsd-session-state.sh": "e54379ba86bf1b6d",
-  "hooks/gsd-statusline.js": "2541196849ec5ffc",
+  "hooks/gsd-statusline.js": "e9cfc9ddfffabe4d",
   "hooks/gsd-update-banner.js": "b457746cb76c1957",
   "hooks/gsd-validate-commit.sh": "bf5dd61d33cb3a38",
   "hooks/gsd-windsurf-pre-command.js": "948be1c6d14c79cd",
diff --git a/tests/gsd-statusline.test.cjs b/tests/gsd-statusline.test.cjs
index f0ddf07d1..04ef43773 100644
--- a/tests/gsd-statusline.test.cjs
+++ b/tests/gsd-statusline.test.cjs
@@ -1365,6 +1365,60 @@ test('config-set statusline.show_context_tokens yes → rejected', () => {
 }
 
 
+// ────────────────────────────────────────────────────────────────────────
+// Compact 1M model badge
+// ────────────────────────────────────────────────────────────────────────
+{
+  const { test, describe } = require('node:test');
+  const assert = require('node:assert/strict');
+  const statusline = require('../hooks/gsd-statusline.js');
+  const { compactModelName } = statusline;
+
+  describe('compactModelName', () => {
+    test('collapses "(1M context)" to "(1M)"', () => {
+      assert.equal(compactModelName('Sonnet 4.5 (1M context)'), 'Sonnet 4.5 (1M)');
+    });
+    test('is case-insensitive on "context" and preserves the token case', () => {
+      assert.equal(compactModelName('Opus 4.6  (1m CONTEXT)'), 'Opus 4.6 (1m)');
+    });
+    test('tolerates future window sizes (#2160 approval condition)', () => {
+      assert.equal(compactModelName('Sonnet 5 (500K context)'), 'Sonnet 5 (500K)');
+      assert.equal(compactModelName('Opus 5 (2M context)'), 'Opus 5 (2M)');
+    });
+    test('handles the abbreviated "ctx" variant (#2160 approval condition)', () => {
+      assert.equal(compactModelName('Sonnet 4.5 (1M ctx)'), 'Sonnet 4.5 (1M)');
+      assert.equal(compactModelName('Opus 5 (2M CTX)'), 'Opus 5 (2M)');
+    });
+    test('leaves non-context parentheticals untouched', () => {
+      assert.equal(compactModelName('Sonnet 5 (beta)'), 'Sonnet 5 (beta)');
+      assert.equal(compactModelName('Opus 4 (deprecated)'), 'Opus 4 (deprecated)');
+    });
+    test('leaves ordinary names unchanged', () => {
+      assert.equal(compactModelName('Claude'), 'Claude');
+      assert.equal(compactModelName('Sonnet 4.5'), 'Sonnet 4.5');
+    });
+    test('only matches the suffix position', () => {
+      assert.equal(
+        compactModelName('(1M context) Special'), '(1M context) Special');
+    });
+    test('passes non-strings through', () => {
+      assert.equal(compactModelName(undefined), undefined);
+      assert.equal(compactModelName(null), null);
+    });
+  });
+
+  describe('renderStatusline uses the compact badge', () => {
+    test('rendered output carries (1M), not (1M context)', () => {
+      const out = statusline.renderStatusline({
+        model: { display_name: 'Sonnet 4.5 (1M context)' },
+        workspace: { current_dir: require('node:os').tmpdir() },
+      });
+      assert.ok(out.includes('Sonnet 4.5 (1M)'), `expected compact badge; got: ${out}`);
+      assert.ok(!out.includes('(1M context)'), `expected no verbose suffix; got: ${out}`);
+    });
+  });
+}
+
 // ────────────────────────────────────────────────────────────────────────
 // Git segment (statusline.show_git)
 // ────────────────────────────────────────────────────────────────────────