GPT-6 Luna
NewOpenAIAll OpenAI models
$0.10
$0.50
2026-09-22
Positioning: Economy. Price level 1 of 4 among text models.
- Positioning
- Economy, as the vendor describes it.Source
- Price
- Level 1 of 4 among text models ($ is the cheapest), by output price per 1M tokens: under $1.
- Vendor-stated speed
- Not shown: the vendor doesn't compare this model's speed.
Three separate signals, not a quality score.
OpenAI's most efficient model for focused, high-volume tasks. GPT-6 Luna is an OpenAI text model on ATP Token, billed per 1M input and output tokens, with a lower cached-input rate.
ThinkingToolsVision
Per 1,000 short chats
$0.28
USD · 800/400 tokens
Input
$0.10
USD / 1M tokens
Output
$0.50
USD / 1M tokens
Released
Sep 22, 2026
Pricing
Pay for what you use: credits are deducted only when a request succeeds.
Input
$0.10
Cache read
$0.01
Output
$0.50
USD / 1M tokens
Input
$0.10
10 credits · USD / 1M tokens
Cache read
$0.01
1 credits · USD / 1M tokens
Output
$0.50
50 credits · USD / 1M tokens
Cache write · 5m TTL$0.125 / 1M
OpenAI · Family · USD / 1M tokens
Text models from the same vendor on ATP. Bars fill up to the family's highest price.
| Model | Input | Output |
|---|---|---|
| GPT-5.4 Progpt-5.4-pro | $30.00 | $180.00 |
| GPT-6 Astragpt-6-astra | $10.00 | $50.00 |
| GPT-5.5gpt-5.5 | $5.00 | $30.00 |
| GPT-5.6 Solgpt-5.6-sol | $4.00 | $20.00 |
| GPT-5.4gpt-5.4 | $2.50 | $15.00 |
| GPT-5.6 Terragpt-5.6-terra | $2.00 | $12.00 |
| GPT-6 Solgpt-6-sol | $2.00 | $10.00 |
| GPT-6.1 Solgpt-6.1-sol | $2.00 | $10.00 |
| GPT-6.1 Terragpt-6.1-terra | $1.00 | $5.00 |
| GPT-5.6 Lunagpt-5.6-luna | $0.20 | $1.20 |
| GPT-6 Luna This pagegpt-6-luna | $0.10 | $0.50 |
Cost per 1,000 typical requests
A quick estimate with fixed token counts per request. No caching, no retries. Try the estimator with your own numbers.
| Workload | USD / 1,000 |
|---|---|
| Short chat turn800 / 400 | $0.28 |
| RAG answer4,000 / 500 | $0.65 |
| Agent step with tools20,000 / 1,500 | $2.75 |
Same controls on every model: project keys, per-project model access, credit budgets, and a log of every request.Set up your organization
Cost estimator
Plug in your usage to see roughly what a month costs.
0200
0100
ESTIMATE
$2.00
USD / month
200 credits / month
- Input$1.00
- Output$1.00
$2.00 USD / month · 200 credits / month
Quickstart
Keep your SDK. Point it at ATP and use a project key. Read the docs
quickstart.py · OpenAI SDK
from openai import OpenAI
client = OpenAI(
base_url="https://api.atptoken.ai/v1",
api_key="atp-•••"
)
r = client.chat.completions.create(
model="gpt-6-luna",
messages=[{"role":"user","content":"hi"}],
)Compare with similar models
Same type and positioning, from other vendors, closest in price first.
- DeepSeek V4 FlashDeepSeekPositioning: Economy. Price level 1 of 4 among text models.$0.20 / $0.40In / out · per 1M tokens
- Qwen Plus CharacterQwen (Alibaba)Positioning: Economy. Price level 1 of 4 among text models.$0.115 / $0.287In / out · per 1M tokens
- Gemini 3.5 Flash LiteGooglePositioning: Economy. Price level 2 of 4 among text models. Vendor-stated speed: Fastest.$0.30 / $2.50In / out · per 1M tokens
FAQ
- Can GPT-6 Luna use tools, read images, or think before answering?
- GPT-6 Luna supports tool calling, vision input and extended thinking, but not audio.
- Is cached input cheaper on GPT-6 Luna?
- You pay per 1M input tokens and per 1M output tokens. Cached input costs 10% of the normal input price. Cache writes are priced separately. You only pay when a request succeeds. $1 = 100 credits. See pricing
- Is there a newer OpenAI model than GPT-6 Luna on ATP?
- Yes. GPT-6.1 Terra (gpt-6.1-terra) came out on Oct 26, 2026, after GPT-6 Luna (Sep 22, 2026), and is the newer OpenAI text option on ATP. Both stay available: compare family prices on this page, then turn on the id you want for your project.
- How do I call GPT-6 Luna on ATP?
- Create a project API key and point any OpenAI-compatible SDK at https://api.atptoken.ai/v1. Set model to "gpt-6-luna" (the API id, not the display name). Make sure the model is turned on for your project.
Get started
Start with $5. Credits never expire.
Create a project key, turn this model on, and pay only for what you use.