GPT 6 Luna
GPT 6 Luna is a language model from OpenAI. It is currently free at 1 provider with up to 1.1M tokens of context.
- Developer
- OpenAI
- Context
- 1.1M tokens
- Type
- Text
- License
- Proprietary
- Free since
- October 12, 2026
Where to use GPT 6 Luna for free
Each row is a separate free endpoint with its own limits.
Quick start
curl https://api.unorouter.com/v1/chat/completions \
-H "Authorization: Bearer $UNOROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-6-luna:free",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(
base_url="https://api.unorouter.com/v1",
api_key="YOUR_UNOROUTER_API_KEY",
)
reply = client.chat.completions.create(
model="gpt-6-luna:free",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.unorouter.com/v1",
apiKey: process.env.UNOROUTER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "gpt-6-luna:free",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(reply.choices[0].message.content);Example for UnoRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.
Benchmarks
Source: Artificial Analysis · GPT-6 Luna (Max)
Similar free models
FAQ
Is GPT 6 Luna free?
Yes. As of October 12, 2026, GPT 6 Luna is free at UnoRouter. Each provider has its own limits — see the table above.
What is the context window of GPT 6 Luna?
The largest context among free routes is 1,100,000 tokens. Some providers cap it lower.
How do I call GPT 6 Luna via API?
Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID gpt-6-luna:free, and a UnoRouter key.
How good is GPT 6 Luna?
Artificial Analysis Intelligence Index: 38.1. For comparison, the strongest free model in the catalog right now is GLM 5.3.
Is GPT 6 Luna open-weight?
No, it is proprietary: access is only through provider APIs.