modelprices.xyz
Cheapest-model query: returns the lowest-cost AI models matching your constraints — min_context (tokens), vision/function_calling/reasoning (true), max_input_per_mtok (USD cap), limit (default 5). Add expected_input/expected_output token counts to rank by blended USD per request instead of input price; exclude_preview=true skips pre-release models. Answers 'what is the cheapest model that can do X?' across 2,000+ models and 70+ providers.
Offering
- Provider
- modelprices.xyz
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Api
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://modelprices.xyz/llm/cheapest- MIME type
- application/json
- First seen
- 2026-10-16T01:51:40.954Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"payTo": "0x63a20fa244d3E6a8902121E99704b7F857dc6EBB"
}
]Observed health
- Status
- Healthy
- Latest latency
- 1162 ms
- Average latency
- 1037 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"min_context": {
"type": "integer",
"description": "Minimum context window in tokens"
},
"vision": {
"type": "boolean"
},
"function_calling": {
"type": "boolean"
},
"reasoning": {
"type": "boolean"
},
"max_input_per_mtok": {
"type": "number",
"description": "Max input price in USD per 1M tokens"
},
"expected_input": {
"type": "number",
"description": "Expected input tokens per request — with expected_output, ranks by blended USD per request instead of input price"
},
"expected_output": {
"type": "number",
"description": "Expected output tokens per request"
},
"exclude_preview": {
"type": "boolean",
"description": "Exclude preview/pre-release model versions"
},
"limit": {
"type": "integer",
"default": 5,
"maximum": 25
}
}
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"exclude_preview": {
"description": "Exclude preview/pre-release model versions",
"type": "boolean"
},
"expected_input": {
"description": "Expected input tokens per request — with expected_output, ranks by blended USD per request instead of input price",
"type": "number"
},
"expected_output": {
"description": "Expected output tokens per request",
"type": "number"
},
"function_calling": {
"type": "boolean"
},
"limit": {
"default": 5,
"maximum": 25,
"type": "integer"
},
"max_input_per_mtok": {
"description": "Max input price in USD per 1M tokens",
"type": "number"
},
"min_context": {
"description": "Minimum context window in tokens",
"type": "integer"
},
"reasoning": {
"type": "boolean"
},
"vision": {
"type": "boolean"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}