diff --git a/tools/develop/llm-parameter-sweep/llm-anthropic-parameters-sweep.json b/tools/develop/llm-parameter-sweep/llm-anthropic-parameters-sweep.json
new file mode 100644
index 000000000..17ff65745
--- /dev/null
+++ b/tools/develop/llm-parameter-sweep/llm-anthropic-parameters-sweep.json
@@ -0,0 +1,39 @@
+{
+  "_comment": "API-validated parameter values. null=undefined/missing. Values are tested and working. Note: temperature is continuous, not discrete.",
+  "_evaluated": "Evaluated: ant-effort, ant-thinking-budget, temperature. If missing, the parameter is not supported by that model.",
+  "claude-3-5-haiku-20241022": {
+    "temperature-range": [0,1]
+  },
+  "claude-3-7-sonnet-20250219": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-3-haiku-20240307": {
+    "temperature-range": [0,1]
+  },
+  "claude-haiku-4-5-20251001": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-opus-4-1-20250805": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-opus-4-20250514": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-opus-4-5-20251101": {
+    "ant-effort": ["low","medium","high"],
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-sonnet-4-20250514": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  },
+  "claude-sonnet-4-5-20250929": {
+    "ant-thinking-budget": [1024,8192,16384,32768,65535],
+    "temperature-range": [0,1]
+  }
+}
diff --git a/tools/develop/llm-parameter-sweep/llm-gemini-parameters-sweep.json b/tools/develop/llm-parameter-sweep/llm-gemini-parameters-sweep.json
new file mode 100644
index 000000000..1f01d9f43
--- /dev/null
+++ b/tools/develop/llm-parameter-sweep/llm-gemini-parameters-sweep.json
@@ -0,0 +1,76 @@
+{
+  "_comment": "API-validated parameter values. null=undefined/missing. Values are tested and working. Note: temperature is continuous, not discrete.",
+  "_evaluated": "Evaluated: gemini-thinking-budget, gemini-thinking-level, temperature. If missing, the parameter is not supported by that model.",
+  "models/gemini-2.0-flash-001": {
+    "gemini-thinking-budget": [0],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.0-flash-exp-image-generation": {
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.0-flash-lite-001": {
+    "gemini-thinking-budget": [0],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash": {
+    "gemini-thinking-budget": [0,1024,16384,24576],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash-image": {
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash-lite": {
+    "gemini-thinking-budget": [0,1024,16384,24576],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash-lite-preview-09-2025": {
+    "gemini-thinking-budget": [0,1024,16384,24576],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash-preview-09-2025": {
+    "gemini-thinking-budget": [0,1024,16384,24576],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-flash-preview-tts": {
+    "temperature": [0,0.5,1.5,2]
+  },
+  "models/gemini-2.5-pro": {
+    "gemini-thinking-budget": [1024,16384,24576,32768],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-2.5-pro-preview-tts": {
+    "temperature-range": [0,2]
+  },
+  "models/gemini-3-flash-preview": {
+    "gemini-thinking-budget": [0,1024,16384,24576,32768,65535],
+    "gemini-thinking-level": ["minimal","low","medium","high"],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-3-pro-image-preview": {
+    "gemini-thinking-budget": [0,1024,16384,24576,32768,65535],
+    "temperature-range": [0,2]
+  },
+  "models/gemini-3-pro-preview": {
+    "gemini-thinking-budget": [1024,16384,24576,32768,65535],
+    "gemini-thinking-level": ["low","high"],
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3-12b-it": {
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3-1b-it": {
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3-27b-it": {
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3-4b-it": {
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3n-e2b-it": {
+    "temperature-range": [0,2]
+  },
+  "models/gemma-3n-e4b-it": {
+    "temperature-range": [0,2]
+  }
+}
diff --git a/tools/develop/llm-parameter-sweep/llm-openai-parameters-sweep.json b/tools/develop/llm-parameter-sweep/llm-openai-parameters-sweep.json
new file mode 100644
index 000000000..16c1cec4d
--- /dev/null
+++ b/tools/develop/llm-parameter-sweep/llm-openai-parameters-sweep.json
@@ -0,0 +1,154 @@
+{
+  "_comment": "API-validated parameter values. null=undefined/missing. Values are tested and working. Note: temperature is continuous, not discrete.",
+  "_evaluated": "Evaluated: oai-image-generation, oai-reasoning-effort, oai-verbosity, oai-web-search, temperature. If missing, the parameter is not supported by that model.",
+  "gpt-5-2025-08-07": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["minimal","low","medium","high"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-chat-latest": {
+    "oai-image-generation": ["hq"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-codex": {
+    "oai-reasoning-effort": ["low","medium","high"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-mini-2025-08-07": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["minimal","low","medium","high"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-nano-2025-08-07": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["minimal","low","medium","high"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-pro-2025-10-06": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["high"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5-search-api-2025-10-14": {
+    "temperature-range": [0,2]
+  },
+  "gpt-5.1-2025-11-13": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["none","low","medium","high"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5.1-chat-latest": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["medium"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.1-codex": {
+    "oai-reasoning-effort": ["low","medium","high"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.1-codex-max": {
+    "oai-reasoning-effort": ["low","medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.1-codex-mini": {
+    "oai-reasoning-effort": ["low","medium","high"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.2-2025-12-11": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["none","low","medium","high","xhigh"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "gpt-5.2-chat-latest": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["medium"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.2-codex": {
+    "oai-reasoning-effort": ["low", "medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "gpt-5.2-pro-2025-12-11": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["medium","high","xhigh"],
+    "oai-verbosity": ["low","medium","high"],
+    "oai-web-search": ["medium"],
+    "temperature": [1]
+  },
+  "o1-2024-12-17": {
+    "oai-reasoning-effort": ["low","medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o1-pro-2025-03-19": {
+    "oai-reasoning-effort": ["low","medium","high"],
+    "oai-verbosity": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o3-2025-04-16": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["low","medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o3-deep-research-2025-06-26": {
+    "oai-reasoning-effort": ["medium"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o3-mini-2025-01-31": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["low","medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o3-pro-2025-06-10": {
+    "oai-image-generation": ["hq"],
+    "oai-reasoning-effort": ["low","medium","high"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o4-mini-2025-04-16": {
+    "oai-reasoning-effort": ["low","medium","high","xhigh"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  },
+  "o4-mini-deep-research-2025-06-26": {
+    "oai-reasoning-effort": ["medium"],
+    "oai-verbosity": ["medium"],
+    "oai-web-search": ["medium"],
+    "temperature-range": [0,2]
+  }
+}
diff --git a/tools/develop/llm-parameter-sweep/llm-xai-parameters-sweep.json b/tools/develop/llm-parameter-sweep/llm-xai-parameters-sweep.json
new file mode 100644
index 000000000..4644940a1
--- /dev/null
+++ b/tools/develop/llm-parameter-sweep/llm-xai-parameters-sweep.json
@@ -0,0 +1,45 @@
+{
+  "_comment": "API-validated parameter values. null=undefined/missing. Values are tested and working. Note: temperature is continuous, not discrete.",
+  "_evaluated": "Evaluated: temperature, xai-reasoning-effort, xai-web-search. If missing, the parameter is not supported by that model.",
+  "grok-2-vision-1212": {
+    "temperature-range": [0,1.5],
+    "xai-reasoning-effort": ["low","medium","high"]
+  },
+  "grok-3": {
+    "temperature-range": [0,1.5],
+    "xai-reasoning-effort": ["low","medium","high"]
+  },
+  "grok-3-mini": {
+    "temperature-range": [0,1.5],
+    "xai-reasoning-effort": ["low","medium","high"]
+  },
+  "grok-4-0709": {
+    "temperature-range": [0,2],
+    "xai-reasoning-effort": ["low","medium","high"],
+    "xai-web-search": ["auto"]
+  },
+  "grok-4-1-fast-non-reasoning": {
+    "temperature-range": [0,2],
+    "xai-reasoning-effort": ["low","medium","high"],
+    "xai-web-search": ["auto"]
+  },
+  "grok-4-1-fast-reasoning": {
+    "temperature-range": [0,2],
+    "xai-reasoning-effort": ["low","medium","high"],
+    "xai-web-search": ["auto"]
+  },
+  "grok-4-fast-non-reasoning": {
+    "temperature-range": [0,2],
+    "xai-reasoning-effort": ["low","medium","high"],
+    "xai-web-search": ["auto"]
+  },
+  "grok-4-fast-reasoning": {
+    "temperature-range": [0,2],
+    "xai-reasoning-effort": ["low","medium","high"],
+    "xai-web-search": ["auto"]
+  },
+  "grok-code-fast-1": {
+    "temperature-range": [0,1],
+    "xai-reasoning-effort": ["low","medium","high"]
+  }
+}