# OpenAI: GPT-6 Luna Pro

Provider: openai  
Category: llm  
Model ID: `openai/gpt-6-luna-pro`

GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...

## Specs

- Context length: 1050000 tokens
- Max output: 128000 tokens
- Modalities: file, image, text
- Released: 2026-09-22

## Pricing

- Input: $0.10 per million tokens
- Output: $0.50 per million tokens

## Providers

- **openai** — ctx 1050000, input $0.10/M, output $0.50/M

## Verdict

GPT-6 Luna Pro delivers a massive 1M+ token context window at competitive pricing, making it the go-to for processing entire codebases, legal document sets, or multi-hour meeting transcripts in a single pass. The $0.10/$0.50 per Mtok pricing undercuts most frontier models while maintaining multimodal support across text, images, and files. Without public benchmarks yet, you're trading proven performance data for early access to OpenAI's latest architecture—best for teams that need extreme context length and can validate output quality in their own domain.

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Last verified: 2026-10-19T02:30:34.239Z  
Canonical URL: https://switchy.build/directory/models/gpt-6-luna-pro