OpenAI · Text
GPT-6 Luna API pricing
OpenAI’s GPT-6 Luna through one prepaid, OpenAI-compatible key: $0.10 input, $0.50 output per 1M tokens, the provider’s list price with nothing added per request.
GPT-6 Luna price per 1M tokens
- Input
- $0.10
- per 1M tokens
- Cached input
- $0.01
- per 1M tokens, on a cache hit
- Output
- $0.50
- per 1M tokens
OpenAI’s list price, in US dollars. Tokens.Pay adds a 5% fee (minimum $0.79) when you add credit, never per request.
What GPT-6 Luna is good at
The cheap end of the GPT-6 family. 1M context, flat rate.
In short: fast, high-volume tasks.
- Tool calls
- Image understanding
- Structured output
Text model, called at /v1/chat/completions. Listed under text generation and vision.
GPT-6 Luna context window and limits
- Provider
- OpenAI
- Type
- Text
- Context window
- 1.05M tokens
- Max output
- 128K tokens
- Endpoint
/v1/chat/completions- Model id
gpt-6-luna
What GPT-6 Luna costs per request
Typical requests at the list rate, worked out once. Your own counts go in the calculator below.
| Request | Input | Of which cached | Output | Per request | Per 1,000 |
|---|---|---|---|---|---|
| Short chat reply | 1,500 | — | 300 | $0.000300 | $0.3000 |
| Support bot, cached system prompt | 6,000 | 5,000 | 500 | $0.000400 | $0.4000 |
| Summarise a 100-page document | 60,000 | — | 1,500 | $0.006750 | $6.75 |
| Agent step, long cached context | 200,000 | 180,000 | 2,000 | $0.004800 | $4.80 |
Token counts are examples; the rates are OpenAI’s list prices. Tokens.Pay adds nothing per request.
GPT-6 Luna cost calculator
Set the size of a typical request. Prices are per token, so the estimate is exact for those counts.
Call GPT-6 Luna with the OpenAI SDK
Base URL https://api.airuntime.dev/v1, your key as the bearer token, and model set to gpt-6-luna.
curl
curl https://api.airuntime.dev/v1/chat/completions \
-H "Authorization: Bearer $TOKENS_PAY_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-6-luna",
"messages": [{"role": "user", "content": "Say hello in five words."}]
}'Python
from openai import OpenAI
import os
client = OpenAI(base_url="https://api.airuntime.dev/v1", api_key=os.environ["TOKENS_PAY_KEY"])
reply = client.chat.completions.create(
model="gpt-6-luna",
messages=[{"role": "user", "content": "Say hello in five words."}],
)
print(reply.choices[0].message.content)Node
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airuntime.dev/v1", apiKey: process.env.TOKENS_PAY_KEY });
const reply = await client.chat.completions.create({
model: "gpt-6-luna",
messages: [{ role: "user", content: "Say hello in five words." }],
});
console.log(reply.choices[0].message.content);Who processes GPT-6 Luna requests
Your code calls AI Runtime directly. It forwards the request to the provider and keeps only the bill.
Processing and storage
- Model provider
- OpenAI · data terms
- Gateway
- AI Runtime, AWS us-east-1
Not stored by Tokens.Pay or AI Runtime. Prompts and outputs exist in memory only while the request runs; we keep the billing record. The provider processes the request under its own terms. Zero data retention, exactly
Compare GPT-6 Luna with similar models
| Model | Provider | Input /1M | Cached /1M | Output /1M | Context |
|---|---|---|---|---|---|
| GPT-6 Luna (this page) | OpenAI | $0.10 | $0.01 | $0.50 | 1.05M |
| GPT-6.1 Terra | OpenAI | $1.00 | $0.05 | $5.00 | 1.05M |
| GPT-6.1 Sol | OpenAI | $2.00 | $0.10 | $10.00 | 1.05M |
| GPT-6 Astra | OpenAI | $10.00 | $1.00 | $50.00 | 1.05M |
| DeepSeek V4.1 Flash | DeepSeek | $0.15 | $0.003 | $0.60 | 1M |
| Kimi K3.1 Pro | Moonshot AI | $1.92 | $0.192 | $10.04 | 1M |
GPT-6 Luna API questions
How much does the GPT-6 Luna API cost?
$0.10 per 1M input tokens, $0.01 per 1M cached input tokens and $0.50 per 1M output tokens: OpenAI’s list price. Tokens.Pay adds nothing per request; a 5% fee (minimum $0.79) applies when you add credit.
What is the model id for GPT-6 Luna?
Send model "gpt-6-luna" to https://api.airuntime.dev/v1/chat/completions with your Tokens.Pay key as the bearer token. Any OpenAI-compatible SDK works.
What is the GPT-6 Luna context window?
1.05M tokens, with up to 128K output tokens per request.
Does Tokens.Pay store my GPT-6 Luna prompts?
No. AI Runtime, the gateway your key calls, keeps prompts and outputs in memory only while the request runs and stores just the billing record. The request is processed by OpenAI, under the provider’s own API data terms.
Does GPT-6 Luna support prompt caching?
Yes. Input tokens served from OpenAI’s cache are billed at $0.01 per 1M instead of $0.10. Your Dashboard shows your cache hit rate.
Add credit, then call GPT-6 Luna.
From $5, plus a 5% top-up fee (minimum $0.79). No subscription; paid credit never expires.
Add credit