chute_config: trim exclude to 4 items (Chutes max=5); rely on max_hourly_price for cost filtering

chute_config.yml

@@ -7,31 +7,15 @@ Image:
 NodeSelector:
   gpu_count: 1
   min_vram_gb_per_gpu: 16
-  # Exclude all valid Chutes GPU identifiers EXCEPT 3090 and 4090
-  # (the cheapest consumer GPUs). List verified against
-  # https://api.chutes.ai/nodes/ on 2026-04-14.
+  # Chutes caps exclude list at 5 items. max_hourly_price below handles
+  # cost filtering (blocks anything >$0.50/hr); this list handles
+  # compatibility-only concerns. Pattern copied from known-working
+  # person/vehicle production chute (VALIDATION_GUIDE reference).
   exclude:
-    - "5090"
-    - "a100"
-    - "a100_40gb"
-    - "a100_40gb_sxm"
-    - "a100_sxm"
-    - "a40"
-    - "a4000"
-    - "a5000"
-    - "a6000"
-    - "a6000_ada"
-    - "b200"
-    - "b300"
-    - "h100"
-    - "h100_nvl"
-    - "h100_sxm"
-    - "h20"
-    - "h200"
-    - "l4"
-    - "l40"
-    - "l40s"
-    - "pro_6000"
+    - "5090"     # newest Blackwell consumer; sm120 compat unverified
+    - "b200"     # Blackwell data center; expensive + sm100
+    - "h200"     # Hopper; very expensive
+    - "mi300x"   # AMD; different runtime stack
 
 Chute:
   timeout_seconds: 300