diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -498,6 +498,7 @@
     'ArcanistSubversionAPI' => 'repository/api/ArcanistSubversionAPI.php',
     'ArcanistSubversionWorkingCopy' => 'workingcopy/ArcanistSubversionWorkingCopy.php',
     'ArcanistSummaryLintRenderer' => 'lint/renderer/ArcanistSummaryLintRenderer.php',
+    'ArcanistSummaryUnitRenderer' => 'unit/renderer/ArcanistSummaryUnitRenderer.php',
     'ArcanistSymbolEngine' => 'ref/symbol/ArcanistSymbolEngine.php',
     'ArcanistSymbolRef' => 'ref/symbol/ArcanistSymbolRef.php',
     'ArcanistSyntaxErrorXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistSyntaxErrorXHPASTLinterRule.php',
@@ -1556,6 +1557,7 @@
     'ArcanistSubversionAPI' => 'ArcanistRepositoryAPI',
     'ArcanistSubversionWorkingCopy' => 'ArcanistWorkingCopy',
     'ArcanistSummaryLintRenderer' => 'ArcanistLintRenderer',
+    'ArcanistSummaryUnitRenderer' => 'ArcanistUnitRenderer',
     'ArcanistSymbolEngine' => 'Phobject',
     'ArcanistSymbolRef' => 'ArcanistRef',
     'ArcanistSyntaxErrorXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
diff --git a/src/unit/renderer/ArcanistSummaryUnitRenderer.php b/src/unit/renderer/ArcanistSummaryUnitRenderer.php
new file mode 100644
--- /dev/null
+++ b/src/unit/renderer/ArcanistSummaryUnitRenderer.php
@@ -0,0 +1,22 @@
+<?php
+
+final class ArcanistSummaryUnitRenderer extends ArcanistUnitRenderer {
+
+  private $renderer;
+  private $statusesToShow = array(
+    ArcanistUnitTestResult::RESULT_FAIL => true,
+    ArcanistUnitTestResult::RESULT_BROKEN => true,
+  );
+
+  public function setProxyRenderer(ArcanistUnitRenderer $renderer) {
+    $this->renderer = $renderer;
+    return $this;
+  }
+
+  public function renderUnitResult(ArcanistUnitTestResult $result) {
+    if (idx($this->statusesToShow, $result->getResult(), false)) {
+      return $this->renderer->renderUnitResult($result);
+    }
+    return null;
+  }
+}
diff --git a/src/workflow/ArcanistUnitWorkflow.php b/src/workflow/ArcanistUnitWorkflow.php
--- a/src/workflow/ArcanistUnitWorkflow.php
+++ b/src/workflow/ArcanistUnitWorkflow.php
@@ -75,7 +75,8 @@
       'output' => array(
         'param' => 'format',
         'help' => pht(
-          "With 'full', show full pretty report (Default). ".
+          "With 'summary', show a summary report (Default). ".
+          "With 'full', show full pretty report. ".
           "With 'json', report results in JSON format. ".
           "With 'ugly', use uglier (but more efficient) JSON formatting. ".
           "With 'none', don't print results."),
@@ -155,7 +156,13 @@
       $this->engine->setPaths($paths);
     }
 
+    $output_format = $this->getOutputFormat();
+
     $renderer = new ArcanistUnitConsoleRenderer();
+    if ($output_format === 'summary') {
+      $renderer = id(new ArcanistSummaryUnitRenderer())
+        ->setProxyRenderer($renderer);
+    }
     $this->engine->setRenderer($renderer);
 
     $enable_coverage = null; // Means "default".
@@ -175,16 +182,34 @@
 
     $console = PhutilConsole::getConsole();
 
-    $output_format = $this->getOutputFormat();
-
-    if ($output_format !== 'full') {
-      $console->disableOut();
+    $console_disabled = false;
+    switch ($output_format) {
+      case 'ugly':
+      case 'json':
+      case 'none':
+        $console->disableOut();
+        $console_disabled = true;
+        break;
+      case 'full':
+      case 'summary':
+        break;
     }
 
     $unresolved = array();
     $coverage = array();
+    $summary = array(
+      ArcanistUnitTestResult::RESULT_PASS => 0,
+      ArcanistUnitTestResult::RESULT_FAIL => 0,
+      ArcanistUnitTestResult::RESULT_BROKEN => 0,
+      ArcanistUnitTestResult::RESULT_SKIP => 0,
+      ArcanistUnitTestResult::RESULT_UNSOUND => 0,
+      'total_count' => 0,
+    );
     foreach ($results as $result) {
       $result_code = $result->getResult();
+      $summary[$result_code] += 1;
+      $summary['total_count'] += 1;
+
       if ($this->engine->shouldEchoTestResults()) {
         $console->writeOut('%s', $renderer->renderUnitResult($result));
       }
@@ -198,6 +223,8 @@
       }
     }
 
+    $console->writeOut($this->renderTestSummary($summary));
+
     if ($coverage) {
       $file_coverage = array_fill_keys(
         $paths,
@@ -252,9 +279,10 @@
       }
     }
 
-    if ($output_format !== 'full') {
+    if ($console_disabled) {
       $console->enableOut();
     }
+
     $data = array_values(mpull($results, 'toDictionary'));
     switch ($output_format) {
       case 'ugly':
@@ -330,6 +358,24 @@
     return $out;
   }
 
+  private function renderTestSummary($summary) {
+    return pht(
+      'Test results: '.
+      '%d tests passed, '.
+      '%d tests failed, '.
+      '%d tests broken, '.
+      '%d tests unsound, '.
+      '%d tests skipped. '.
+      'Total: %d tests.'.
+      "\n",
+      idx($summary, ArcanistUnitTestResult::RESULT_PASS),
+      idx($summary, ArcanistUnitTestResult::RESULT_FAIL),
+      idx($summary, ArcanistUnitTestResult::RESULT_BROKEN),
+      idx($summary, ArcanistUnitTestResult::RESULT_UNSOUND),
+      idx($summary, ArcanistUnitTestResult::RESULT_SKIP),
+      idx($summary, 'total_count'));
+  }
+
   private function getOutputFormat() {
     if ($this->getArgument('ugly')) {
       return 'ugly';
@@ -342,9 +388,10 @@
       'none' => 'none',
       'json' => 'json',
       'ugly' => 'ugly',
+      'summary' => 'summary',
       'full' => 'full',
     );
-    return idx($known_formats, $format, 'full');
+    return idx($known_formats, $format, 'summary');
   }