OpenAI

GPT-6 Luna

Released 2026-09-22

GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...

You send / 1M

$0.100

tokens in

It replies / 1M

$0.500

tokens out

Memory

1.05M

tokens it can read at once

Typical request

$0.0004

1,000 words in, 400 out

Data privacy

No training or retention: Yes. At least one provider serves it with zero data retention.

ProviderYou send / 1MIt replies / 1MUptimePrivacy policy
Azure$0.100$0.500100%Read
Azure$0.110$0.550100%Read
Azure$0.110$0.550100%Read

Based on OpenRouter and Vercel AI Gateway data. Confirm terms with the provider before sending sensitive data.

What it can do

  • Reads: file, image, text
  • Writes: text
  • Reasoning: Yes
  • Tool calling: Yes
  • Longest reply: 128K tokens
  • Repeated text is billed at $0.010 per 1M (prompt caching)
  • Intelligence score: 38.1 / 100 (Artificial Analysis)

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Appears in

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