GPT 6 Luna Pro

Name: GPT 6 Luna Pro
Author: OpenAI

Standard

OpenAI's GPT-6 Luna served in pro reasoning mode for the hardest problems. Same 1M-token model as GPT 6 Luna with reasoning.mode set to pro for higher-quality responses on complex tasks. Built for high-volume, latency-sensitive work that needs an extra quality lift: classification, extraction, chat, and lightweight agentic flows.

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GPT 6 Luna Pro is somewhat expensive at $0.10/M tokens input and $0.50/M tokens output. Cached input reads are priced at $0.01/M tokens, making repeated context cheaper. The model supports vision/image input, extended reasoning, a 1.1M context window.

Best forLong-context analysisVision tasksCost-effective

Benchmarks

CodingInsufficient data

AgenticInsufficient data

ReasoningInsufficient data

MathInsufficient data

Sources:OpenRouter

Specifications

Vision

Audio

Reasoning

1.1M

Context

128K

Max output

Performance

Providers

Misc

September 22, 2026

Released

Same family

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Frequently Asked Questions about GPT 6 Luna Pro▼

When was GPT 6 Luna Pro released?

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GPT 6 Luna Pro was released on September 22, 2026.

Who created GPT 6 Luna Pro?

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GPT 6 Luna Pro was created by OpenAI.

How much does GPT 6 Luna Pro cost?

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GPT 6 Luna Pro costs $0.10/M input tokens and $0.50/M output tokens.

What is GPT 6 Luna Pro API pricing?

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The GPT 6 Luna Pro API is priced at $0.10 per million input tokens and $0.50 per million output tokens. You can access GPT 6 Luna Pro through idapt.app alongside 200+ other AI models in one workspace.

Is GPT 6 Luna Pro a reasoning model?

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Yes, GPT 6 Luna Pro is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.

Does GPT 6 Luna Pro support image or vision input?

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Yes, GPT 6 Luna Pro supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.

Does GPT 6 Luna Pro support audio?

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No, GPT 6 Luna Pro does not support audio input.

What is the context window of GPT 6 Luna Pro?

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GPT 6 Luna Pro has a context window of 1.1M tokens, meaning it can process approximately 787,500 words of context at once.

Is GPT 6 Luna Pro open source?

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GPT 6 Luna Pro is a proprietary model developed by OpenAI. The model weights and training data are not publicly available.

What is GPT 6 Luna Pro good at?

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Based on benchmark data, GPT 6 Luna Pro excels at: visual analysis and image understanding. It is OpenAI's capable model suitable for a wide range of tasks.

Where can I use GPT 6 Luna Pro?

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You can chat with GPT 6 Luna Pro on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access GPT 6 Luna Pro through OpenAI's own API or platform.