GPT-6 Luna

by OpenAI · gpt-luna family · released 2026-09-22

On output pricing, GPT-6 Luna is cheaper than 569 of the 721 priced models tracked here, at $0.5/Mtok. Its 1,050,000-token context window is larger than 818 of 838 models. Capabilities: vision, tools, reasoning, structured output.

Specifications

ProviderOpenAI
Familygpt-luna
Input price$0.1/Mtok
Output price$0.5/Mtok
Cache read price$0.01/Mtok
Cache write price$0.125/Mtok
Context window1,050,000
Max output tokens128,000
Input modalitiestext, image, pdf
Output modalitiestext
Capabilitiesvision, tools, reasoning, structured output
Knowledge cutoff2026-05-18
Released2026-09-22

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Similar models

GPT-5.6 Luna
OpenAI · $1.2/Mtok out · 1.1M context
GPT-6 Sol
OpenAI · $10/Mtok out · 1.1M context
GPT-6 Astra
OpenAI · $50/Mtok out · 1.1M context
GPT-5.6
OpenAI · $20/Mtok out · 1.1M context

Related reading

OpenAI's GPT-5.6 Sol, Terra, and Luna: What Just Launched (and Why You Can't Use It Yet) OpenAI Codex Sites Just Launched: What Indie Hackers Actually Need to Know OpenAI Codex Gets Appshots and Remote Mac Control: What Indie Hackers Need to Know
OpenAI documentation → ← All AI models

Data synced daily from models.dev (last synced 9 hours ago). Always verify pricing with OpenAI before deploying to production.