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OpenAI

GPT-6 Luna fast

openai/gpt-6-luna

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...

Input / 1M

$0.10

USD per million tokens

Output / 1M

$0.50

USD per million tokens

Est. cost / token

$0.0000002

$0.20 per 1M, 3:1 mix

Context window

922K

max output 128K

Major features

VisionBatchComputer usePDFCachingReasoningJSON schemaToolsWeb search

Task suitability (heuristic 1–5, not a benchmark)

  • coding3
  • reasoning3
  • math3
  • summarization4
  • extraction4
  • classification4
  • chat3
  • creative3
  • translation4
  • vision3
  • long context4
  • agentic3

Price history

RecordedInputOutputCachedSource
2026-11-05 03:20$0.10$0.50$0.010litellm+openrouter

A row is added whenever a sync detects a price change. Vendor pricing source

Pricing (USD per 1M tokens)

Input
$0.10
Output
$0.50
Cached input
$0.010
Batch input
$0.050
Batch output
$0.25
Blended (3:1)
$0.20

Details

Company
OpenAI
Version
6
Family
GPT
Released
2026-09-22
Parameters
Undisclosed
Max output
128K
Open weights
No
Inputs
file, image, text
Last synced
26 min ago