GPT-5.6 Luna — fast, low-cost frontier model (Artificial Analysis Intelligence I
GPT-5.6 Luna — fast, low-cost frontier model (Artificial Analysis Intelligence Index 51.2, GPQA Diamond 91.1%). Best for high-volume chat, classification, extraction, and lightweight agentic loops where latency and cost matter. Limits: 8K input / 2K output tokens per call. OpenAI-compatible request and response format.
Answeringour last check, 2026-10-31
1 of 1checks answered this week
915 msmedian answer time
$0.003listed price per call
$0.003price 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://api.monpham.work/v1/luna/chat/completions
| Category | Market data |
|---|---|
| Provider host | api.monpham.work |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.003 | 915 ms |
Example input (from the provider)
{
"body": {
"max_tokens": 512,
"messages": [
{
"content": "Hello!",
"role": "user"
}
],
"model": "gpt-5.6-luna",
"stream": false,
"temperature": 0.7
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"max_tokens": {
"default": 512,
"description": "Maximum tokens to generate. Capped at 2000.",
"maximum": 2000,
"type": "integer"
},
"messages": {
"description": "Conversation messages. Combined content must stay under 8000 tokens.",
"items": {
"properties": {
"content": {
"description": "Message content",
"type": "string"
},
"role": {
"enum": [
"system",
"user",
"assistant",
"tool"
],
"type": "string"
}
},
"required": [
"role",
"content"
],
"type": "object"
},
"type": "array"
},
"model": {
"default": "gpt-5.6-luna",
"description": "Model ID. Defaults to gpt-5.6-luna.",
"type": "string"
},
"stream": {
"default": false,
"description": "Enable SSE streaming",
"type": "boolean"
},
"temperature": {
"default": 0.7,
"description": "Sampling temperature (0-2)",
"type": "number"
}
},
"required": [
"messages"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}