diff --git a/sdk/cliproxy/auth/conductor.go b/sdk/cliproxy/auth/conductor.go
index b29e04db8c..1152bca0b1 100644
--- a/sdk/cliproxy/auth/conductor.go
+++ b/sdk/cliproxy/auth/conductor.go
@@ -233,6 +233,84 @@ func (m *Manager) RefreshSchedulerEntry(authID string) {
 	m.scheduler.upsertAuth(snapshot)
 }
 
+// ReconcileRegistryModelStates aligns per-model runtime state with the current
+// registry snapshot for one auth.
+//
+// Supported models are reset to a clean state because re-registration already
+// cleared the registry-side cooldown/suspension snapshot. ModelStates for
+// models that are no longer present in the registry are pruned entirely so
+// renamed/removed models cannot keep auth-level status stale.
+func (m *Manager) ReconcileRegistryModelStates(ctx context.Context, authID string) {
+	if m == nil || authID == "" {
+		return
+	}
+
+	supportedModels := registry.GetGlobalRegistry().GetModelsForClient(authID)
+	supported := make(map[string]struct{}, len(supportedModels))
+	for _, model := range supportedModels {
+		if model == nil {
+			continue
+		}
+		modelKey := canonicalModelKey(model.ID)
+		if modelKey == "" {
+			continue
+		}
+		supported[modelKey] = struct{}{}
+	}
+
+	var snapshot *Auth
+	now := time.Now()
+
+	m.mu.Lock()
+	auth, ok := m.auths[authID]
+	if ok && auth != nil && len(auth.ModelStates) > 0 {
+		changed := false
+		for modelKey, state := range auth.ModelStates {
+			baseModel := canonicalModelKey(modelKey)
+			if baseModel == "" {
+				baseModel = strings.TrimSpace(modelKey)
+			}
+			if _, supportedModel := supported[baseModel]; !supportedModel {
+				// Drop state for models that disappeared from the current registry
+				// snapshot. Keeping them around leaks stale errors into auth-level
+				// status, management output, and websocket fallback checks.
+				delete(auth.ModelStates, modelKey)
+				changed = true
+				continue
+			}
+			if state == nil {
+				continue
+			}
+			if modelStateIsClean(state) {
+				continue
+			}
+			resetModelState(state, now)
+			changed = true
+		}
+		if len(auth.ModelStates) == 0 {
+			auth.ModelStates = nil
+		}
+		if changed {
+			updateAggregatedAvailability(auth, now)
+			if !hasModelError(auth, now) {
+				auth.LastError = nil
+				auth.StatusMessage = ""
+				auth.Status = StatusActive
+			}
+			auth.UpdatedAt = now
+			if errPersist := m.persist(ctx, auth); errPersist != nil {
+				logEntryWithRequestID(ctx).WithField("auth_id", auth.ID).Warnf("failed to persist auth changes during model state reconciliation: %v", errPersist)
+			}
+			snapshot = auth.Clone()
+		}
+	}
+	m.mu.Unlock()
+
+	if m.scheduler != nil && snapshot != nil {
+		m.scheduler.upsertAuth(snapshot)
+	}
+}
+
 func (m *Manager) SetSelector(selector Selector) {
 	if m == nil {
 		return
@@ -1735,8 +1813,28 @@ func resetModelState(state *ModelState, now time.Time) {
 	state.UpdatedAt = now
 }
 
+func modelStateIsClean(state *ModelState) bool {
+	if state == nil {
+		return true
+	}
+	if state.Status != StatusActive {
+		return false
+	}
+	if state.Unavailable || state.StatusMessage != "" || !state.NextRetryAfter.IsZero() || state.LastError != nil {
+		return false
+	}
+	if state.Quota.Exceeded || state.Quota.Reason != "" || !state.Quota.NextRecoverAt.IsZero() || state.Quota.BackoffLevel != 0 {
+		return false
+	}
+	return true
+}
+
 func updateAggregatedAvailability(auth *Auth, now time.Time) {
-	if auth == nil || len(auth.ModelStates) == 0 {
+	if auth == nil {
+		return
+	}
+	if len(auth.ModelStates) == 0 {
+		clearAggregatedAvailability(auth)
 		return
 	}
 	allUnavailable := true
@@ -1744,10 +1842,12 @@ func updateAggregatedAvailability(auth *Auth, now time.Time) {
 	quotaExceeded := false
 	quotaRecover := time.Time{}
 	maxBackoffLevel := 0
+	hasState := false
 	for _, state := range auth.ModelStates {
 		if state == nil {
 			continue
 		}
+		hasState = true
 		stateUnavailable := false
 		if state.Status == StatusDisabled {
 			stateUnavailable = true
@@ -1777,6 +1877,10 @@ func updateAggregatedAvailability(auth *Auth, now time.Time) {
 			}
 		}
 	}
+	if !hasState {
+		clearAggregatedAvailability(auth)
+		return
+	}
 	auth.Unavailable = allUnavailable
 	if allUnavailable {
 		auth.NextRetryAfter = earliestRetry
@@ -1796,6 +1900,15 @@ func updateAggregatedAvailability(auth *Auth, now time.Time) {
 	}
 }
 
+func clearAggregatedAvailability(auth *Auth) {
+	if auth == nil {
+		return
+	}
+	auth.Unavailable = false
+	auth.NextRetryAfter = time.Time{}
+	auth.Quota = QuotaState{}
+}
+
 func hasModelError(auth *Auth, now time.Time) bool {
 	if auth == nil || len(auth.ModelStates) == 0 {
 		return false
diff --git a/sdk/cliproxy/service.go b/sdk/cliproxy/service.go
index abe1deed5f..a562cfb317 100644
--- a/sdk/cliproxy/service.go
+++ b/sdk/cliproxy/service.go
@@ -310,6 +310,7 @@ func (s *Service) applyCoreAuthAddOrUpdate(ctx context.Context, auth *coreauth.A
 	// This operation may block on network calls, but the auth configuration
 	// is already effective at this point.
 	s.registerModelsForAuth(auth)
+	s.coreManager.ReconcileRegistryModelStates(ctx, auth.ID)
 
 	// Refresh the scheduler entry so that the auth's supportedModelSet is rebuilt
 	// from the now-populated global model registry. Without this, newly added auths
@@ -1019,6 +1020,7 @@ func (s *Service) refreshModelRegistrationForAuth(current *coreauth.Auth) bool {
 		s.ensureExecutorsForAuth(current)
 	}
 	s.registerModelsForAuth(current)
+	s.coreManager.ReconcileRegistryModelStates(context.Background(), current.ID)
 
 	latest, ok := s.latestAuthForModelRegistration(current.ID)
 	if !ok || latest.Disabled {
@@ -1032,6 +1034,7 @@ func (s *Service) refreshModelRegistrationForAuth(current *coreauth.Auth) bool {
 	// no auth fields changed, but keeps the refresh path simple and correct.
 	s.ensureExecutorsForAuth(latest)
 	s.registerModelsForAuth(latest)
+	s.coreManager.ReconcileRegistryModelStates(context.Background(), latest.ID)
 	s.coreManager.RefreshSchedulerEntry(current.ID)
 	return true
 }