diff --git a/tox.ini b/tox.ini
index 5bcb7fec..6626fd87 100644
--- a/tox.ini
+++ b/tox.ini
@@ -52,14 +52,14 @@ commands =
     pytest tests/ -q --tb=short \
         --ignore=tests/e2e \
         --ignore=tests/functional \
-        -m "not ollama and not docker and not selenium and not external_api and not skip_ci" \
+        -m "not ollama and not docker and not selenium and not external_api and not skip_ci and not slow" \
         -n auto --dist worksteal
 
 [testenv:integration]
 description = Integration tests (marked with @pytest.mark.integration)
 commands =
     pytest tests/ -q --tb=short \
-        -m "integration and not ollama and not docker and not selenium and not external_api" \
+        -m "integration and not ollama and not docker and not selenium and not external_api and not slow" \
         -n auto --dist worksteal
 
 [testenv:functional]
@@ -79,7 +79,7 @@ commands =
     pytest tests/ -q --tb=short \
         --ignore=tests/e2e \
         --ignore=tests/functional \
-        -m "not ollama and not docker and not selenium and not external_api" \
+        -m "not ollama and not docker and not selenium and not external_api and not slow" \
         -n auto --dist worksteal
 
 [testenv:ollama]
@@ -100,7 +100,7 @@ commands =
         --cov-fail-under=73 \
         --junitxml=reports/junit.xml \
         -p no:xdist \
-        -m "not ollama and not docker and not selenium and not external_api and not skip_ci"
+        -m "not ollama and not docker and not selenium and not external_api and not skip_ci and not slow"
 
 [testenv:coverage]
 description = Full coverage report (terminal + XML)
@@ -111,7 +111,7 @@ commands =
         --cov-report=xml \
         --cov-fail-under=73 \
         -p no:xdist \
-        -m "not ollama and not docker and not selenium and not external_api"
+        -m "not ollama and not docker and not selenium and not external_api and not slow"
 
 [testenv:coverage-html]
 description = Coverage with HTML report
@@ -122,7 +122,7 @@ commands =
         --cov-report=html \
         --cov-fail-under=73 \
         -p no:xdist \
-        -m "not ollama and not docker and not selenium and not external_api"
+        -m "not ollama and not docker and not selenium and not external_api and not slow"
 
 # ── Pre-push (mirrors CI exactly) ────────────────────────────────────────────
 
@@ -142,7 +142,7 @@ commands =
         --cov-fail-under=73 \
         --junitxml=reports/junit.xml \
         -p no:xdist \
-        -m "not ollama and not docker and not selenium and not external_api and not skip_ci"
+        -m "not ollama and not docker and not selenium and not external_api and not skip_ci and not slow"
 
 # ── Pre-commit (fast local gate) ────────────────────────────────────────────
 
@@ -156,7 +156,7 @@ commands =
     pytest tests/ -q --tb=short \
         --ignore=tests/e2e \
         --ignore=tests/functional \
-        -m "not ollama and not docker and not selenium and not external_api and not skip_ci" \
+        -m "not ollama and not docker and not selenium and not external_api and not skip_ci and not slow" \
         -n auto --dist worksteal
 
 # ── Dev Server ───────────────────────────────────────────────────────────────