diff --git a/.bazelrc b/.bazelrc
index b503730b15..e34bac97ec 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -166,7 +166,7 @@ common:ci-windows-cross --config=remote
 common:ci-windows-cross --host_platform=//:rbe
 common:ci-windows-cross --strategy=remote
 common:ci-windows-cross --strategy=TestRunner=local
-common:ci-windows-cross --local_test_jobs=16
+common:ci-windows-cross --local_test_jobs=12
 common:ci-windows-cross --test_env=RUST_TEST_THREADS=1
 # Native Windows CI still covers the PowerShell tests. The cross-built gnullvm
 # binaries currently hang in PowerShell AST parser tests when those binaries are
diff --git a/codex-rs/core/tests/all.rs b/codex-rs/core/tests/all.rs
index ce3b4b9f80..49c4680a8b 100644
--- a/codex-rs/core/tests/all.rs
+++ b/codex-rs/core/tests/all.rs
@@ -6,5 +6,5 @@ mod suite;
 
 #[test]
 fn windows_bazel_concurrency_experiment_cache_bust_marker() {
-    println!("windows Bazel concurrency experiment: jobs16_threads1_confirm");
+    println!("windows Bazel concurrency experiment: jobs12_threads1");
 }