---
title: "GPT-6 Luna"
description: "OpenAI's most efficient GPT-6 model, for focused, high-volume tasks."
canonical: "https://vetted.tools/models/gpt-6-luna"
source: "https://vetted.tools/models/gpt-6-luna.md"
---

# GPT-6 Luna

OpenAI's most efficient GPT-6 model, for focused, high-volume tasks.

Source: https://vetted.tools/models/gpt-6-luna

- Slug: `gpt-6-luna`
- By [OpenAI](https://vetted.tools/companies/openai) ([openai.com](https://openai.com), checked 2026-09-26)
- Official page: [https://openai.com](https://openai.com)

## Facts

- Capabilities: Explicit caching, File input, Implicit caching, Reasoning, Structured output, Tool use, Vision, Web search, Fast ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Context window: 1.05M tokens (1,050,000) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Gateway ID: openai/gpt-6-luna ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Input: $0.10 per 1M tokens. Above 272,000 input tokens: $0.2 in, $0.75 out per 1M ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Knowledge cutoff: May 18, 2026 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Max output: 128K tokens (128,000) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Takes: Text, image, PDF ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Returns: Text ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- No training on prompts: Offered by every provider on the Vercel AI Gateway, when you turn it on ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Output: $0.50 per 1M tokens. Above 272,000 input tokens: $0.2 in, $0.75 out per 1M ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Released: Sep 22, 2026 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Type: Language ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Zero data retention: Available on a paid Vercel plan through the AI Gateway, from some providers on it (you turn it on) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)

## Usage

- 62,289,690 requests and 1,327,987,530,281 tokens on [OpenRouter](https://openrouter.ai/openai/gpt-6-luna) over the 4 days to 2026-09-25.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml