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Compare LLM hosting costs

compare_llm_hosting

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Compare a GKE infrastructure budget with managed APIs. Call with parameters={} for defaults and supported models, hardware, and plans. Simple mode accepts preset, model, billing, requests (calls/day), and window (auto, 24, 8, or 1 hour/day); set mode=simple when overriding requests. It sizes replicas under illustrative throughput assumptions. Interactive presets run 24/7; job and pipeline presets schedule running hours inside active windows. Commitments bill idle hours. Advanced mode keeps the fleet fixed and exposes custom token budgets, throughput, and running time. Break-even holds that fleet fixed and checks its capacity. Totals include compute and GKE; operations and additional services are excluded. Returns assumptions, USD costs, constraints, sources, and a shareable URL. Invalid inputs fail; no resources are provisioned. See /agents#calculator.

Input Schema

Name	Required	Description	Default
`parameters`	Yes	Calculator URL parameters as strings; use an empty object for defaults and available choices.

Output Schema

Name	Required	Description	Default
`apis`	Yes
`tasks`	Yes
`units`	Yes
`inputs`	Yes
`models`	Yes
`latency`	Yes
`presets`	Yes
`sources`	Yes
`estimate`	Yes
`node_pools`	Yes
`parameters`	Yes
`validation`	Yes
`limitations`	Yes
`scenario_url`	Yes
`calculated_on`	Yes
`quantizations`	Yes
`snapshot_date`	Yes
`comparison_ready`	Yes
`model_comparisons`	Yes
`pilot_configuration`	Yes
`precision_comparisons`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed36 schema fields changedOct 12, 2026

addedOutput schema / $defs / DemandPreset / properties / scheduled

Added value: +{
+  "default": false,
+  "title": "Scheduled",
+  "type": "boolean"
+}

addedOutput schema / $defs / DemandPreset / properties / window_hours

Added value: +{
+  "default": 24,
+  "title": "Window Hours",
+  "type": "number"
+}

removedOutput schema / $defs / FrontierModel / properties / analysis_url
```
Removed value: -{
-  "title": "Analysis Url",
-  "type": "string"
-}
```

addedOutput schema / $defs / FrontierModel / properties / checkpoint_memory

Added value: +{
+  "default": [],
+  "items": {
+    "maxItems": 2,
+    "minItems": 2,
+    "prefixItems": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "number"
+      }
+    ],
+    "type": "array"
+  },
+  "title": "Checkpoint Memory",
+  "type": "array"
+}

addedOutput schema / $defs / FrontierModel / properties / checkpoint_urls

Added value: +{
+  "default": [],
+  "items": {
+    "maxItems": 2,
+    "minItems": 2,
+    "prefixItems": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "string"
+      }
+    ],
+    "type": "array"
+  },
+  "title": "Checkpoint Urls",
+  "type": "array"
+}

addedOutput schema / $defs / FrontierModel / properties / default_quantization

Added value: +{
+  "default": "fp16",
+  "title": "Default Quantization",
+  "type": "string"
+}

addedOutput schema / $defs / FrontierModel / properties / deployment_issue

Added value: +{
+  "default": "",
+  "title": "Deployment Issue",
+  "type": "string"
+}

removedOutput schema / $defs / FrontierModel / properties / intelligence
```
Removed value: -{
-  "title": "Intelligence",
-  "type": "number"
-}
```
removedOutput schema / $defs / FrontierModel / properties / minimum_node_id
```
Removed value: -{
-  "title": "Minimum Node Id",
-  "type": "string"
-}
```

removedOutput schema / $defs / FrontierModel / properties / minimum_nodes

Removed value: -{
-  "title": "Minimum Nodes",
-  "type": "integer"
-}

addedOutput schema / $defs / FrontierModel / properties / node_context_limits

Added value: +{
+  "default": [],
+  "items": {
+    "maxItems": 2,
+    "minItems": 2,
+    "prefixItems": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "integer"
+      }
+    ],
+    "type": "array"
+  },
+  "title": "Node Context Limits",
+  "type": "array"
+}

addedOutput schema / $defs / FrontierModel / properties / node_minimums

Added value: +{
+  "default": [],
+  "items": {
+    "maxItems": 2,
+    "minItems": 2,
+    "prefixItems": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "integer"
+      }
+    ],
+    "type": "array"
+  },
+  "title": "Node Minimums",
+  "type": "array"
+}

removedOutput schema / $defs / FrontierModel / properties / rank

Removed value: -{
-  "title": "Rank",
-  "type": "integer"
-}

addedOutput schema / $defs / FrontierModel / properties / recipe_url

Added value: +{
+  "default": "",
+  "title": "Recipe Url",
+  "type": "string"
+}

addedOutput schema / $defs / FrontierModel / properties / required_node_ids

Added value: +{
+  "default": [],
+  "items": {
+    "type": "string"
+  },
+  "title": "Required Node Ids",
+  "type": "array"
+}

addedOutput schema / $defs / FrontierModel / properties / supported_quantizations

Added value: +{
+  "default": [
+    "fp4",
+    "fp8",
+    "fp16"
+  ],
+  "items": {
+    "type": "string"
+  },
+  "title": "Supported Quantizations",
+  "type": "array"
+}

changedOutput schema / $defs / FrontierModel / required

Previous value: -[
-  "id",
-  "rank",
-  "name",
-  "creator",
-  "intelligence",
-  "parameters_b",
-  "active_parameters",
-  "context_tokens",
-  "license",
-  "license_class",
-  "analysis_url",
-  "weights_url",
-  "minimum_node_id",
-  "minimum_nodes"
-]New value: +[
+  "id",
+  "name",
+  "creator",
+  "parameters_b",
+  "active_parameters",
+  "context_tokens",
+  "license",
+  "license_class",
+  "weights_url"
+]

addedOutput schema / $defs / HostingEstimate / properties / capacity_requests_month
```
Added value: +{
+  "title": "Capacity Requests Month",
+  "type": "integer"
+}
```
addedOutput schema / $defs / HostingEstimate / properties / compatibility_issue
```
Added value: +{
+  "title": "Compatibility Issue",
+  "type": "string"
+}
```
addedOutput schema / $defs / HostingEstimate / properties / daily_demand_fits
```
Added value: +{
+  "title": "Daily Demand Fits",
+  "type": "boolean"
+}
```
removedOutput schema / $defs / HostingEstimate / properties / platform_monthly_usd
```
Removed value: -{
-  "title": "Platform Monthly Usd",
-  "type": "number"
-}
```
addedOutput schema / $defs / HostingEstimate / properties / required_output_tokens_per_second
```
Added value: +{
+  "title": "Required Output Tokens Per Second",
+  "type": "number"
+}
```
addedOutput schema / $defs / HostingEstimate / properties / usable_output_tokens_per_second
```
Added value: +{
+  "title": "Usable Output Tokens Per Second",
+  "type": "number"
+}
```
addedOutput schema / $defs / HostingEstimate / properties / window_capacity_pct
```
Added value: +{
+  "title": "Window Capacity Pct",
+  "type": "number"
+}
```

changedOutput schema / $defs / HostingEstimate / required

Previous value: -[
-  "weight_memory_gb",
-  "required_memory_gb",
-  "nodes_per_replica",
-  "total_nodes",
-  "total_gpus",
-  "compute_monthly_usd",
-  "control_monthly_usd",
-  "platform_monthly_usd",
-  "total_monthly_usd",
-  "capacity_tokens_month",
-  "capacity_requests_day",
-  "requests_month",
-  "input_tokens_month",
-  "output_tokens_month",
-  "demand_capacity_pct",
-  "per_thousand_requests_usd",
-  "demand_fits",
-  "context_issue",
-  "topology_confirmed",
-  "qualified"
-]New value: +[
+  "weight_memory_gb",
+  "required_memory_gb",
+  "nodes_per_replica",
+  "total_nodes",
+  "total_gpus",
+  "compute_monthly_usd",
+  "control_monthly_usd",
+  "total_monthly_usd",
+  "capacity_tokens_month",
+  "capacity_requests_day",
+  "requests_month",
+  "input_tokens_month",
+  "output_tokens_month",
+  "demand_capacity_pct",
+  "window_capacity_pct",
+  "required_output_tokens_per_second",
+  "usable_output_tokens_per_second",
+  "capacity_requests_month",
+  "per_thousand_requests_usd",
+  "demand_fits",
+  "context_issue",
+  "topology_confirmed",
+  "qualified",
+  "compatibility_issue",
+  "daily_demand_fits"
+]

addedOutput schema / $defs / HostingInputs / properties / demand_window_hours
```
Added value: +{
+  "title": "Demand Window Hours",
+  "type": "number"
+}
```

addedOutput schema / $defs / HostingInputs / properties / mode

Added value: +{
+  "default": "advanced",
+  "title": "Mode",
+  "type": "string"
+}

removedOutput schema / $defs / HostingInputs / properties / platform_monthly_usd
```
Removed value: -{
-  "title": "Platform Monthly Usd",
-  "type": "number"
-}
```
addedOutput schema / $defs / HostingInputs / properties / quality / items
```
Added value: +{
+  "$ref": "#/$defs/TaskQuality"
+}
```
removedOutput schema / $defs / HostingInputs / properties / quality / maxItems
```
Removed value: -4
```
removedOutput schema / $defs / HostingInputs / properties / quality / minItems
```
Removed value: -4
```

removedOutput schema / $defs / HostingInputs / properties / quality / prefixItems

Removed value: -[
-  {
-    "$ref": "#/$defs/TaskQuality"
-  },
-  {
-    "$ref": "#/$defs/TaskQuality"
-  },
-  {
-    "$ref": "#/$defs/TaskQuality"
-  },
-  {
-    "$ref": "#/$defs/TaskQuality"
-  }
-]

changedOutput schema / $defs / HostingInputs / required

Previous value: -[
-  "model_id",
-  "node_pool_id",
-  "quantization_id",
-  "replicas",
-  "duty_cycle_percent",
-  "memory_overhead_pct",
-  "tokens_per_second",
-  "target_utilization",
-  "output_tokens_request",
-  "input_tokens_request",
-  "requests_per_day",
-  "active_days",
-  "platform_monthly_usd",
-  "api_mode",
-  "cache_prefix_tokens",
-  "cache_requests",
-  "concurrency",
-  "target_first_token",
-  "target_completion",
-  "measured_concurrency",
-  "measured_first_token",
-  "measured_completion",
-  "tasks_per_month",
-  "review_hourly_usd",
-  "quality",
-  "quality_enabled"
-]New value: +[
+  "model_id",
+  "node_pool_id",
+  "quantization_id",
+  "replicas",
+  "duty_cycle_percent",
+  "memory_overhead_pct",
+  "tokens_per_second",
+  "target_utilization",
+  "output_tokens_request",
+  "input_tokens_request",
+  "requests_per_day",
+  "active_days",
+  "demand_window_hours",
+  "api_mode",
+  "cache_prefix_tokens",
+  "cache_requests",
+  "concurrency",
+  "target_first_token",
+  "target_completion",
+  "measured_concurrency",
+  "measured_first_token",
+  "measured_completion",
+  "tasks_per_month",
+  "review_hourly_usd",
+  "quality",
+  "quality_enabled"
+]

addedOutput schema / $defs / PrecisionComparison / properties / node
```
Added value: +{
+  "$ref": "#/$defs/GKENodePool"
+}
```
addedOutput schema / $defs / PrecisionComparison / properties / url
```
Added value: +{
+  "title": "Url",
+  "type": "string"
+}
```

changedOutput schema / $defs / PrecisionComparison / required

Previous value: -[
-  "quantization",
-  "estimate"
-]New value: +[
+  "quantization",
+  "estimate",
+  "node",
+  "url"
+]

AddedSep 16, 2026

TDQS

A4.6/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and openWorldHint=false, and the description adds real value beyond that: 'no resources are provisioned', invalid inputs fail, idle hours are billed under commitments, and operations/additional services are excluded from totals. These are non-obvious cost-accounting behaviors the annotations cannot convey.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Purpose and the zero-arg default call are front-loaded, then mode behavior follows in a logical order. It is dense and slightly run-on in the middle, but nearly every sentence carries distinct behavioral or parameter information rather than filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite an output schema existing, the description still sketches what comes back (assumptions, USD costs, constraints, sources, shareable URL) and covers the exclusions and failure behavior. Nothing an agent needs to invoke this correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema is a generic free-form string map, so its 100% coverage documents only the wrapper, not the actual keys. The description compensates by naming real parameters (preset, model, billing, requests, window, mode) and their allowed values ('auto, 24, 8, or 1 hour/day'), which the schema alone would not reveal.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Compare a GKE infrastructure budget with managed APIs') and immediately differentiates from the sibling compare_mcp_context_cost by naming the GKE-vs-managed-API scope. An agent can tell what is being compared without opening the schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly says to call with parameters={} for defaults and available choices, when to use simple mode vs advanced mode, and how break-even differs ('holds that fleet fixed'). The window and mode interactions are spelled out, so an agent knows which mode to pick for which scenario.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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