# compare_models

Compare 2-5 LLM/VLM models side-by-side: pricing, benchmarks, capabilities.

Agent View of the PolicyLayer registry record for `compare_models`. HTML page: https://policylayer.com/tools/io-github-daichi-kudo-llm-advisor/compare-models

## Facts

- Tool: `compare_models`
- Server: Llm Advisor (`llm-advisor-mcp`) — https://policylayer.com/tools/io-github-daichi-kudo-llm-advisor.md
- Install: `npx -y llm-advisor-mcp`
- Homepage: https://github.com/Daichi-Kudo/llm-advisor-mcp
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "compare_models",
    "arguments": {}
  }
}
```

## Why compare_models is rated Low

This tool queries an internal database of LLM/VLM metrics and returns structured comparison results. It has no side effects—no data is created, modified, deleted, or irreversibly changed. No financial transactions occur, and no code or external commands are executed based on the comparison itself.

From the tool's own definition: "Tool 'compare_models' retrieves and displays comparison data: 'pricing, benchmarks, capabilities' for models."

## Use case

AI agents call compare_models to retrieve information from Llm Advisor without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Llm Advisor:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "compare_models": {}
  }
}
```

## Other tools on Llm Advisor (3)

- `get_model_info` — Read — https://policylayer.com/tools/io-github-daichi-kudo-llm-advisor/get-model-info.md
- `list_top_models` — Read — https://policylayer.com/tools/io-github-daichi-kudo-llm-advisor/list-top-models.md
- `recommend_model` — Read — https://policylayer.com/tools/io-github-daichi-kudo-llm-advisor/recommend-model.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-daichi-kudo-llm-advisor · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-daichi-kudo-llm-advisor