diff --git a/configs/nvidia-master.yaml b/configs/nvidia-master.yaml
index 9f23f9452..5d333e040 100644
--- a/configs/nvidia-master.yaml
+++ b/configs/nvidia-master.yaml
@@ -7787,7 +7787,7 @@ dsv4-fp4-gb300-dynamo-vllm-agentic-mtp-agg:
           ep: 1
           dp-attn: false
       - spec-decoding: mtp
-        conc-list: [8]
+        conc-list: [1, 2, 4, 6, 8]
         prefill:
           num-worker: 1
           tp: 4
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index 70522669d..cfb0b4daa 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -6317,3 +6317,11 @@
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2647
   append-only: true
   
+- config-keys:
+    - dsv4-fp4-gb300-dynamo-vllm-agentic-mtp-agg
+  scenario-type:
+    - agentic-coding
+  description:
+    - "Expand the GB300 AgentX aggregate TP4 sweep to concurrency 1, 2, 4, 6, and 8."
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2676
+