Add umans provider for glm-5.1 and kimi-k2.6 models

Amp-Thread-ID: https://ampcode.com/threads/T-019e97de-152d-75e5-b71f-5e7d577bb617
Co-authored-by: Amp <amp@ampcode.com>

pricing.json

@@ -1562,6 +1562,21 @@
     "supports_tool_choice": true,
     "supports_vision": true
   },
+  "umans/umans-kimi-k2.6": {
+    "provider": "umans",
+    "mode": "chat",
+    "input_cost_per_token": 9.5E-7,
+    "output_cost_per_token": 0.000004,
+    "max_input_tokens": 262144,
+    "max_output_tokens": 262144,
+    "max_tokens": 262144,
+    "cache_read_input_token_cost": 1.6E-7,
+    "supports_function_calling": true,
+    "supports_reasoning": true,
+    "supports_response_schema": true,
+    "supports_tool_choice": true,
+    "supports_vision": true
+  },
   "zenmux/deepseek-v4-pro": {
     "provider": "zenmux",
     "mode": "chat",
@@ -1589,6 +1604,20 @@
     "supports_response_schema": true,
     "supports_tool_choice": true
   },
+  "umans/umans-glm-5.1": {
+    "provider": "umans",
+    "mode": "chat",
+    "input_cost_per_token": 0.0000014,
+    "output_cost_per_token": 0.0000044,
+    "max_input_tokens": 202752,
+    "max_output_tokens": 131072,
+    "max_tokens": 131072,
+    "cache_read_input_token_cost": 2.6E-7,
+    "supports_function_calling": true,
+    "supports_reasoning": true,
+    "supports_response_schema": true,
+    "supports_tool_choice": true
+  },
   "wafer/GLM-5.1": {
     "provider": "wafer",
     "mode": "chat",