GPT-6 Luna

openai/gpt-6-luna

GPT-6 Luna is the fast, cost-efficient member of the GPT-6 series, positioned below GPT-6 Sol. It accepts file, image and text input over a 1,050,000-token window and is aimed at high-volume, latency-sensitive work.

Input · Account credit
$0.10

per 1M tokens

Cash equivalent $0.01

Output · Account credit
$0.50

per 1M tokens

Cash equivalent $0.05

Context window
1,050,000

tokens · OpenRouter

Input → Output
File · Image · Text→ Text
Model specifications
Sources reviewed: Y-API catalog snapshot:

Choosing this model

Selection advice by Y-API. The checks below are suggested evaluations, not published test results.

Where to start

Try it for chat, classification and lightweight agent steps where the request volume is high and each individual call is simple enough that a larger model would be wasted on it.

What to watch for

The low input price applies up to a token threshold; above it the listed rate roughly doubles, so very large requests do not scale linearly with the headline number. There is no publisher card to inspect for this closed-weight model.

Model specifications

These are OpenRouter model-level specifications, not a Y-API compatibility test. A particular route may accept fewer input formats, parameters or tokens. Verify the features you need with a small request; a successful text response does not validate vision or tool calling.

Context window
1,050,000 tokens
Input
File · Image · Text
Output
Text
Listed on OpenRouter
Parameters listed by OpenRouter
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetoolsverbosity
OpenRouter model page & specifications

API pricing & cost estimate

Estimated credit consumed
$0.35
Estimated cash equivalent
$0.035

Illustrative token budget, not measured usage or a quote. Includes input and output; excludes separate media charges, cache discounts and retries. Include billed reasoning tokens in your output budget where applicable. Actual billing follows usage returned by the service.

$1 paid adds $10 of credit. Cash equivalent = credit consumed ÷ 10; this is not the model publisher’s list price.

Same token budget, different models
ModelEstimated credit consumedEstimated cash equivalent
GPT-6 Luna$0.35$0.035
GPT-5.6 Luna$0.95$0.095
Claude Haiku 5.5$0.45$0.045
View LLM API pricing & billing

API integration examples

These minimal, text-only requests use the exact Y-API model ID. They do not demonstrate image, audio, video, file or tool support. The output limit also needs room for reasoning; an empty answer with finish_reason=length can mean the budget was exhausted.

A task to try

Route each incoming request to one of three queues based on the text, and explain in one sentence what triggered the choice.

Set the TOKEN environment variable to a key from your console. Run this on your server or locally; never expose a key in browser code or a public repository.

cURL · GPT-6 Luna
curl --fail-with-body --silent --show-error --max-time 120 \
  'https://api.y-api.bestvirtualgoods.com/v1/chat/completions' \
  -H "Authorization: Bearer ${TOKEN:?Set TOKEN first}" \
  -H 'Content-Type: application/json' \
  --data-binary @- <<'JSON'
{
  "model": "openai/gpt-6-luna",
  "messages": [
    {
      "role": "user",
      "content": "Route each incoming request to one of three queues based on the text, and explain in one sentence what triggered the choice."
    }
  ],
  "max_tokens": 4096
}
JSON

How to evaluate the result

Measure routing accuracy on a labeled sample and watch the cost per thousand requests, since the tiered pricing means the average rate depends on your request sizes.

Before you choose

How does Luna relate to GPT-6 Sol?

They are separate catalog entries with separate IDs and prices; Luna is the cheaper, faster tier. Switching between them is a model-field change, but the results are not interchangeable, so re-run your evaluation.

Sources & scope

Technical facts come from the cited model page and, where available, its linked publisher card. A card describes that checkpoint; it is not proof of the weights a gateway serves. Prices come only from the Y-API catalog. We do not claim measured latency, uptime or benchmark scores for this endpoint.