OptimToken

Estimate LLM Cost

estimate-llm-cost

Read-only

Cost a workload with EXACT numbers the caller supplies: arbitrary token counts per request and any monthly volume, not just the 10k/100k/1m presets the other cost tools use. Use this for 'about 800 in and 200 out, 4 million calls a month', or to price one named model across every use-case profile. To compare 2-4 named models like for like at a preset volume, use compare-models-side-by-side instead. Provide a model name to get detailed cost breakdowns, or compare costs across all use case presets. Each figure comes twice: list price, and the optimized price achievable with prompt caching and the batch API. Cost figures are final as returned: rounded server-side and dated by provenance, with the lever behind each saving, or the reason there is none, named in the text.

Input Schema

TableJSON Schema

Name	Required	Description
`modelName`	No	Model name, e.g. 'GPT-4o'. A partial name matches up to 5 models and ALL of them are costed. If omitted, the first 8 catalogue entries are used — that is catalogue order, not a quality ranking.
`monthlyVolume`	No	Exact monthly request count, any integer (default 100,000). This tool does not take the 10k/100k/1m presets the other cost tools use.
`useCasePreset`	No	Workload shape, which sets tokens per request: supportTicket (1.5k in / 500 out), knowledgeQA (2k / 800), meetingSummary (10k / 1.2k, batch-eligible), marketingContent (2.5k / 1.8k), codingTask (3k / 2k), invoiceProcessing (1.5k / 600, batch-eligible), callSummary (2k / 700, batch-eligible), agentWorkflow (6k / 3k). Default: every preset.
`customInputTokens`	No	Custom input tokens per request. Must be supplied TOGETHER with customOutputTokens — either alone is ignored and the preset is used. A custom shape assumes no cacheable prefix and no batch eligibility, so its optimized cost equals its list cost.
`customOutputTokens`	No	Custom output tokens per request. Must be supplied TOGETHER with customInputTokens — either alone is ignored and the preset is used.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`error`	No
`source`	Yes
`volume`	Yes
`eloAsOf`	Yes
`dataAsOf`	No
`modelCosts`	Yes
`provenance`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed11 schema fields changedAug 18, 2026

changedInput schema / properties / customInputTokens / description

Previous value: -"Custom input tokens per request (overrides preset)"New value: +"Custom input tokens per request. Must be supplied TOGETHER with customOutputTokens — either alone is ignored and the preset is used. A custom shape assumes no cacheable prefix and no batch eligibility, so its optimized cost equals its list cost."

changedInput schema / properties / customOutputTokens / description

Previous value: -"Custom output tokens per request (overrides preset)"New value: +"Custom output tokens per request. Must be supplied TOGETHER with customInputTokens — either alone is ignored and the preset is used."

changedInput schema / properties / modelName / description

Previous value: -"Model name to estimate costs for (e.g. 'GPT-4o', 'Claude Sonnet 4'). If omitted, shows top models."New value: +"Model name, e.g. 'GPT-4o'. A partial name matches up to 5 models and ALL of them are costed. If omitted, the first 8 catalogue entries are used — that is catalogue order, not a quality ranking."

changedInput schema / properties / monthlyVolume / description

Previous value: -"Custom monthly volume (default: 100,000)"New value: +"Exact monthly request count, any integer (default 100,000). This tool does not take the 10k/100k/1m presets the other cost tools use."

changedInput schema / properties / useCasePreset / description

Previous value: -"Use case preset. Default: all presets."New value: +"Workload shape, which sets tokens per request: supportTicket (1.5k in / 500 out), knowledgeQA (2k / 800), meetingSummary (10k / 1.2k, batch-eligible), marketingContent (2.5k / 1.8k), codingTask (3k / 2k), invoiceProcessing (1.5k / 600, batch-eligible), callSummary (2k / 700, batch-eligible), agentWorkflow (6k / 3k). Default: every preset."

addedOutput schema / properties / modelCosts / items / properties / costs / items / properties / batchApplied
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / modelCosts / items / properties / costs / items / properties / batchEligible
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / modelCosts / items / properties / costs / items / properties / cacheApplied
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / modelCosts / items / properties / costs / items / properties / cacheEligible
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / modelCosts / items / properties / costs / items / properties / savingsPct
```
Added value: +{
+  "type": "number"
+}
```

changedOutput schema / properties / modelCosts / items / properties / costs / items / required

Previous value: -[
-  "useCase",
-  "inputTokens",
-  "outputTokens",
-  "perRequest",
-  "monthly",
-  "perRequestOptimized",
-  "monthlyOptimized"
-]New value: +[
+  "useCase",
+  "inputTokens",
+  "outputTokens",
+  "perRequest",
+  "monthly",
+  "perRequestOptimized",
+  "monthlyOptimized",
+  "savingsPct",
+  "batchEligible",
+  "cacheEligible",
+  "batchApplied",
+  "cacheApplied"
+]

Changed2 schema fields changedAug 18, 2026

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / properties / provenance

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "catalogTotal": {
+      "type": "number"
+    },
+    "dataAsOf": {
+      "type": "string"
+    },
+    "eloAsOf": {
+      "type": "string"
+    },
+    "label": {
+      "type": "string"
+    },
+    "notice": {
+      "type": "string"
+    },
+    "pricesVerified": {
+      "type": "boolean"
+    },
+    "source": {
+      "type": "string"
+    },
+    "tier": {
+      "type": "number"
+    },
+    "upstreamSchemaVersion": {
+      "type": "string"
+    },
+    "upstreamSource": {
+      "type": "string"
+    },
+    "upstreamTimestamp": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "tier",
+    "source",
+    "label",
+    "pricesVerified",
+    "eloAsOf"
+  ],
+  "type": "object"
+}

Changed2 schema fields changedAug 18, 2026

changedOutput schema / $schema

Previous value: -"https://json-schema.org/draft/2020-12/schema"New value: +"http://json-schema.org/draft-07/schema#"

removedOutput schema / properties / provenance

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "catalogTotal": {
-      "type": "number"
-    },
-    "dataAsOf": {
-      "type": "string"
-    },
-    "eloAsOf": {
-      "type": "string"
-    },
-    "label": {
-      "type": "string"
-    },
-    "notice": {
-      "type": "string"
-    },
-    "pricesVerified": {
-      "type": "boolean"
-    },
-    "source": {
-      "type": "string"
-    },
-    "tier": {
-      "type": "number"
-    },
-    "upstreamSchemaVersion": {
-      "type": "string"
-    },
-    "upstreamSource": {
-      "type": "string"
-    },
-    "upstreamTimestamp": {
-      "type": "string"
-    }
-  },
-  "required": [
-    "tier",
-    "source",
-    "label",
-    "pricesVerified",
-    "eloAsOf"
-  ],
-  "type": "object"
-}

Changed2 schema fields changedAug 17, 2026

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / properties / provenance

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "catalogTotal": {
+      "type": "number"
+    },
+    "dataAsOf": {
+      "type": "string"
+    },
+    "eloAsOf": {
+      "type": "string"
+    },
+    "label": {
+      "type": "string"
+    },
+    "notice": {
+      "type": "string"
+    },
+    "pricesVerified": {
+      "type": "boolean"
+    },
+    "source": {
+      "type": "string"
+    },
+    "tier": {
+      "type": "number"
+    },
+    "upstreamSchemaVersion": {
+      "type": "string"
+    },
+    "upstreamSource": {
+      "type": "string"
+    },
+    "upstreamTimestamp": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "tier",
+    "source",
+    "label",
+    "pricesVerified",
+    "eloAsOf"
+  ],
+  "type": "object"
+}

First observedAug 17, 2026

TDQS

Score is being calculated.

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Estimate LLM Cost

Input Schema

Output Schema

Schema Changelog

TDQS

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