gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5
gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Standard (service_tier default) or Fast (fast), plus $0.001 (Base) or $0.001 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. One endpoint per model: /x402/v1/models/<key>/chat/completions. Rates: https://openai.mm.family/x402/pricing
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://openai.mm.family/x402/v1/chat/completions
| Category | Market data |
|---|---|
| Provider host | openai.mm.family |
| 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 |
|---|---|---|---|---|
| 2026-10-01 | valid payment request | 402 | $0.001 | 1045 ms |
Example input (from the provider)
{
"body": {
"max_tokens": 128,
"messages": [
{
"content": "Hello",
"role": "user"
}
],
"model": "gpt-6-sol"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"max_tokens": {
"type": "integer"
},
"messages": {
"items": {
"properties": {
"content": {
"type": "string"
},
"role": {
"type": "string"
}
},
"required": [
"role",
"content"
],
"type": "object"
},
"type": "array"
},
"model": {
"enum": [
"chat-latest",
"gpt-4.1",
"gpt-4.1-mini",
"gpt-4.1-nano",
"gpt-4o",
"gpt-4o-mini",
"gpt-5",
"gpt-5-mini",
"gpt-5-nano",
"gpt-5.1",
"gpt-5.2",
"gpt-5.4",
"gpt-5.4-long",
"gpt-5.4-mini",
"gpt-5.4-nano",
"gpt-5.5",
"gpt-5.5-long",
"gpt-5.6-luna",
"gpt-5.6-luna-long",
"gpt-5.6-sol",
"gpt-5.6-sol-long",
"gpt-5.6-terra",
"gpt-5.6-terra-long",
"gpt-6-astra",
"gpt-6-astra-long",
"gpt-6-luna",
"gpt-6-luna-long",
"gpt-6-sol",
"gpt-6-sol-long",
"gpt-6.1-sol",
"gpt-6.1-sol-long",
"o1",
"o3",
"o3-mini",
"o4-mini"
],
"type": "string"
},
"reasoning_effort": {
"type": "string"
},
"response_format": {
"type": "object"
},
"service_tier": {
"enum": [
"flex",
"default",
"standard",
"auto",
"fast",
"priority"
],
"type": "string"
},
"stream": {
"type": "boolean"
},
"tools": {
"type": "array"
}
},
"required": [
"model",
"messages"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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"
}