Use this when an agent has an older and a newer LLM catalog snapshot and needs a
Use this when an agent has an older and a newer LLM catalog snapshot and needs a deterministic migration diff before changing routing or budgets. Rows are matched by vendor plus model, id or name. The result separates added, removed and changed models and reports field-level differences for input, output and cached-input price, context window and maximum output tokens.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
1220 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://modell.halowerk.com/v1/llm-catalog-diff
| Category | Market data |
|---|---|
| Provider host | modell.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.005 | 1220 ms |
Example input (from the provider)
{
"body": {
"after": [
{
"context_window": 64000,
"input_price_per_million": 0.8,
"model": "model-small",
"vendor": "example-ai"
}
],
"before": [
{
"context_window": 32000,
"input_price_per_million": 1,
"model": "model-small",
"vendor": "example-ai"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"after": [
{
"context_window": 64000,
"input_price_per_million": 0.8,
"model": "model-small",
"output_price_per_million": 3,
"vendor": "example-ai"
}
],
"before": [
{
"context_window": 32000,
"input_price_per_million": 1,
"model": "model-small",
"output_price_per_million": 3,
"vendor": "example-ai"
}
]
}
],
"properties": {
"after": {
"description": "Newer catalog snapshot.",
"items": {
"additionalProperties": true,
"anyOf": [
{
"required": [
"model"
]
},
{
"required": [
"id"
]
},
{
"required": [
"name"
]
}
],
"properties": {
"cached_input_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"context_window": {
"minimum": 0,
"type": [
"integer",
"null"
]
},
"id": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"input_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"max_output_tokens": {
"minimum": 0,
"type": [
"integer",
"null"
]
},
"model": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"name": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"output_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"vendor": {
"description": "Provider name. Empty is allowed when model identifiers are globally unique.",
"maxLength": 64,
"type": "string"
}
},
"type": "object"
},
"maxItems": 500,
"minItems": 1,
"type": "array"
},
"before": {
"description": "Older catalog snapshot.",
"items": {
"additionalProperties": true,
"anyOf": [
{
"required": [
"model"
]
},
{
"required": [
"id"
]
},
{
"required": [
"name"
]
}
],
"properties": {
"cached_input_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"context_window": {
"minimum": 0,
"type": [
"integer",
"null"
]
},
"id": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"input_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"max_output_tokens": {
"minimum": 0,
"type": [
"integer",
"null"
]
},
"model": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"name": {
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"output_price_per_million": {
"minimum": 0,
"type": [
"number",
"null"
]
},
"vendor": {
"description": "Provider name. Empty is allowed when model identifiers are globally unique.",
"maxLength": 64,
"type": "string"
}
},
"type": "object"
},
"maxItems": 500,
"minItems": 1,