diff --git a/configs/nvidia-master.yaml b/configs/nvidia-master.yaml
index 0a6c86df6..8c880b8a8 100644
--- a/configs/nvidia-master.yaml
+++ b/configs/nvidia-master.yaml
@@ -8991,7 +8991,7 @@ glm5.2-fp4-b300-sglang-agentic-mtp:
   image: lmsysorg/sglang:v0.5.16-cu130
   model: nvidia/GLM-5.2-NVFP4
   model-prefix: glm5.2
-  runner: cluster:b300-nv
+  runner: cluster:b300-dsxe
   precision: fp4
   framework: sglang
   multinode: false
@@ -8999,7 +8999,7 @@ glm5.2-fp4-b300-sglang-agentic-mtp:
     agentic-coding:
     - dram-utilization: 0.80
       search-space:
-      - { tp: 8, spec-decoding: mtp, kv-offloading: dram, kv-offload-backend: { name: hicache }, conc-list: [1, 4, 8, 12, 16] }
+      - { tp: 8, spec-decoding: mtp, kv-offloading: dram, kv-offload-backend: { name: hicache }, conc-list: [1, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48] }
 
 # First GLM-5.2 AgentX recipe on B200, shipped spec-decode-only per the AgentX
 # policy that agentic arms enable speculative decoding rather than running a
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index 14434c76a..5386da981 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -6878,3 +6878,12 @@
   description:
     - "Refresh the Kimi-K3 GB300 AgentX configurations with updated configs."
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2811
+
+- config-keys:
+    - glm5.2-fp4-b300-sglang-agentic-mtp
+  scenario-type:
+    - agentic-coding
+  description:
+    - "Extend the GLM-5.2 NVFP4 B300 SGLang AgentX MTP TP8 HiCache curve from concurrency 16 to 48 with new points at 20, 24, 28, 32, 40, and 48."
+    - "Move the recipe from the retired cluster:b300-nv fleet to cluster:b300-dsxe so the sweep can be generated and scheduled again."
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2829