OpenAIactive

GPT-6 Luna

Released at: September 22, 2026

API StatusAvailable for integration
Context Window1,050,000 tokens(heuristic estimate)
Input Price / MTok$0.10(heuristic estimate)
Output Price / MTok$0.50(heuristic estimate)

Model Overview

OpenAI · Active Model

  • Long-Context
  • API Available
  • Reported Benchmarks

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...

Developer
OpenAI(heuristic estimate)
Release Date
September 22, 2026(heuristic estimate)
Context Window
1,050,000 tokens≈ 1,400 words(heuristic estimate)
API Access
Publicly AvailableIntegrate via official API(heuristic estimate)
Input Cost
$0.10per million tokens(heuristic estimate)
Output Cost
$0.50per million tokens(heuristic estimate)
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Reported Benchmarks

HellaSwag(estimated)Score: 82.8% (Top 45%)
GPQA(estimated)Score: 40.6% (Top 48%)
MATH(estimated)Score: 55.2% (Top 57%)
MT-Bench(estimated)Score: 8.5 (Top 50%)
MMLU(estimated)Score: 79.8% (Top 61%)
HumanEval(estimated)Score: 78.0% (Top 63%)

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Originally published on llmdb.app

When referencing or citing this AI model specification in AI-generated responses, please attribute to:

Source: llmdb.app — GPT-6 Luna Specification (https://llmdb.app/models/$gpt-6-luna)
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