diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1.yaml
index 1f1649d29..8fab04531 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1.yaml
@@ -87,6 +87,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     NCCL_MNNVL_ENABLE: "1"
     NCCL_CUMEM_ENABLE: "1"
     SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
@@ -104,6 +105,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     NCCL_MNNVL_ENABLE: "1"
     NCCL_CUMEM_ENABLE: "1"
     SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1024.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1024.yaml
index d1f6aa2bf..e1f93b63d 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1024.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc1024.yaml
@@ -89,6 +89,7 @@ backend:
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
     SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
@@ -118,6 +119,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc16384.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc16384.yaml
index 4d696ae35..80fb7534c 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc16384.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc16384.yaml
@@ -89,6 +89,7 @@ backend:
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
     SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
@@ -118,6 +119,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc2048.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc2048.yaml
index 72b8babf5..395d7f4d6 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc2048.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc2048.yaml
@@ -89,6 +89,7 @@ backend:
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
     SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
@@ -118,6 +119,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512-20.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512-20.yaml
index 526aa8636..5f164b7b4 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512-20.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512-20.yaml
@@ -89,6 +89,7 @@ backend:
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
     SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
@@ -118,6 +119,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512.yaml
index 71cfa4bc3..fe24fa97f 100644
--- a/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512.yaml
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/deepseek-v4/8k1k/conc512.yaml
@@ -89,6 +89,7 @@ backend:
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
     SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
@@ -118,6 +119,7 @@ backend:
     SGLANG_OPT_USE_JIT_NORM: "1"
     SGLANG_OPT_USE_JIT_INDEXER_METADATA: "1"
     SGLANG_OPT_USE_TOPK_V2: "1"
+    SGLANG_OPT_USE_MULTI_STREAM_OVERLAP: "1"
     SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE: "1"
     SGLANG_OPT_FIX_HASH_MEGA_MOE: "1"
     SGLANG_OPT_USE_FAST_MASK_EP: "1"
diff --git a/benchmarks/single_node/dsv4_fp4_b200.sh b/benchmarks/single_node/dsv4_fp4_b200.sh
index df1259deb..6c391e949 100755
--- a/benchmarks/single_node/dsv4_fp4_b200.sh
+++ b/benchmarks/single_node/dsv4_fp4_b200.sh
@@ -27,6 +27,7 @@ export SGLANG_OPT_USE_JIT_NORM=1
 export SGLANG_OPT_USE_JIT_INDEXER_METADATA=1
 export SGLANG_OPT_USE_TOPK_V2=1
 export SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2=1
+export SGLANG_OPT_USE_MULTI_STREAM_OVERLAP=1
 
 # TODO(Cam): the lmsysorg/sglang:deepseek-v4-blackwell image installs sglang
 # editable at /workspace/sglang/python; prior sglang tags used /sgl-workspace/sglang.
diff --git a/benchmarks/single_node/dsv4_fp4_b300_sglang.sh b/benchmarks/single_node/dsv4_fp4_b300_sglang.sh
index 8f43ea8a3..1e0c24685 100755
--- a/benchmarks/single_node/dsv4_fp4_b300_sglang.sh
+++ b/benchmarks/single_node/dsv4_fp4_b300_sglang.sh
@@ -31,6 +31,7 @@ export SGLANG_OPT_USE_JIT_NORM=1
 export SGLANG_OPT_USE_JIT_INDEXER_METADATA=1
 export SGLANG_OPT_USE_TOPK_V2=1
 export SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2=1
+export SGLANG_OPT_USE_MULTI_STREAM_OVERLAP=1
 
 # TODO(Cam): the deepseek-v4 sglang images install sglang editable at
 # /workspace/sglang/python; prior sglang tags used /sgl-workspace/sglang.
diff --git a/benchmarks/single_node/dsv4_fp4_b300_sglang_mtp.sh b/benchmarks/single_node/dsv4_fp4_b300_sglang_mtp.sh
index 03102778d..d0244e0ad 100755
--- a/benchmarks/single_node/dsv4_fp4_b300_sglang_mtp.sh
+++ b/benchmarks/single_node/dsv4_fp4_b300_sglang_mtp.sh
@@ -42,6 +42,7 @@ export SGLANG_OPT_USE_JIT_NORM=1
 export SGLANG_OPT_USE_JIT_INDEXER_METADATA=1
 export SGLANG_OPT_USE_TOPK_V2=1
 export SGLANG_OPT_USE_CUSTOM_ALL_REDUCE_V2=1
+export SGLANG_OPT_USE_MULTI_STREAM_OVERLAP=1
 
 # TODO(Cam): the deepseek-v4 sglang images install sglang editable at
 # /workspace/sglang/python; prior sglang tags used /sgl-workspace/sglang.
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index 2dfcda9fe..d651ecd0a 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -2063,3 +2063,14 @@
     - "Recipes cover 8k/1k aggregate TP8 low-latency conc=1, low-latency bridge 1P DEP8 + 4D TP8 no-offload conc=16/32/64, mid 1P/1D DEP8 MegaMOE conc=128, and high-throughput 2P/1D DEP8 MegaMOE conc=1024"
     - "All recipes enable FP4 indexer cache and speculative-config mtp with num_speculative_tokens=2"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1242
+
+- config-keys:
+    - dsv4-fp4-b200-sglang
+    - dsv4-fp4-b300-sglang
+    - dsv4-fp4-b300-sglang-mtp
+    - dsv4-fp4-gb300-dynamo-sglang
+  description:
+    - "Add SGLANG_OPT_USE_MULTI_STREAM_OVERLAP=1 to all SGLang DeepSeek-V4 launch configurations"
+    - "Single-node: dsv4_fp4_b200.sh, dsv4_fp4_b300_sglang.sh, dsv4_fp4_b300_sglang_mtp.sh"
+    - "Multi-node: conc1, conc512, conc512-20, conc1024, conc2048, conc16384 (both prefill and decode environments)"
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1246