diff --git a/projects/rccl/src/clique/CliqueManager.cc b/projects/rccl/src/clique/CliqueManager.cc
index dde0cf0085..91990d2f3b 100644
--- a/projects/rccl/src/clique/CliqueManager.cc
+++ b/projects/rccl/src/clique/CliqueManager.cc
@@ -46,8 +46,8 @@ int*               CliqueManager::m_staticGpuBarrierMem             = NULL;
 
 // Define some environment variables that affect clique-based kernels
 RCCL_PARAM(EnableClique, "ENABLE_CLIQUE", 0);                                  // Opt-in environment variable for clique-based kernels
-RCCL_PARAM(AllReduceCliqueByteLimit, "CLIQUE_ALLREDUCE_BYTE_LIMIT", 2097152);  // Max number of bytes to use clique-based kernels for all reduce
-RCCL_PARAM(AllReduceNumChannels,     "CLIQUE_ALLREDUCE_NCHANNELS", 4);         // Number of channels to use for all-reduce
+RCCL_PARAM(AllReduceCliqueByteLimit, "CLIQUE_ALLREDUCE_BYTE_LIMIT", 16777216); // Max number of bytes to use clique-based kernels for all reduce
+RCCL_PARAM(AllReduceNumChannels,     "CLIQUE_ALLREDUCE_NCHANNELS", 0);         // Number of channels to use for all-reduce. (0 for auto-select)
 RCCL_PARAM(CliqueDebug, "CLIQUE_DEBUG", 0);                                    // Emit debug messages
 
 CliqueManager::CliqueManager(int          const  rank,
@@ -321,7 +321,22 @@ ncclResult_t CliqueManager::GetNumChannelsToUse(ncclFunc_t const coll,
   *numChannelstoUse = 1;
 
   if (coll == ncclCollAllReduce) {
-    *numChannelstoUse = std::min((int)rcclParamAllReduceNumChannels(), totalNumChannels);
+    if (rcclParamAllReduceNumChannels() == 0)
+    {
+      // NOTE: These are currently based on collected data and not necessarily ideal for all hardware
+      int numChannels;
+      if (totalBytes <= 65536) numChannels = 1;
+      else if (totalBytes <= 262144) numChannels = 2;
+      else if (totalBytes <= 524288) numChannels = 4;
+      else if (totalBytes <= 2097152) numChannels = 8;
+      else numChannels = 11;
+
+      *numChannelstoUse = std::min(numChannels, totalNumChannels);
+    }
+    else
+    {
+      *numChannelstoUse = std::min((int)rcclParamAllReduceNumChannels(), totalNumChannels);
+    }
   }
 
   return ncclSuccess;
@@ -344,9 +359,6 @@ ncclResult_t CliqueManager::SetCliqueCollectiveArgs(CollectiveArgs* args)
   args->clique.ptrs = &m_pinnedCliquePtrs[opIndex];
   args->clique.verbose = rcclParamCliqueDebug();
 
-  // Determine number of channels to use for this collective
-  args->clique.nChannels = rcclParamAllReduceNumChannels();
-
   return ncclSuccess;
 }