GPT-6 Luna
active
OpenAI2026-09-22
Specifications
Modalities
text
image
Context Window1050K tokens
Max Output128K tokens
Training Cutoff2026-05-18
Open SourceNo
Pricing (per 1M tokens)
Input$0.1000
Output$0.5000
Cache Read$0.0100
Benchmarks
Arena score (text)1441
Arena ratings: LMArena leaderboard dataset, CC BY 4.0, snapshot 2026-10-28.
MMLU-Pro-
SWE-Bench-
GPQA Diamond-
HumanEval-
ARC-AGI-
MATH-
API
Model ID
gpt-6-lunaSources
- TechCrunch: OpenAI launches GPT-6 Sol and Luna, boasting lower cost and fewer mistakes
release date · as of 2026-09-22
- OpenAI: GPT-6 Luna
model id, modalities, context window, max output, training cutoff, price cache write · as of 2026-11-02
- OpenAI: Pricing
price input, price output, price cache read · as of 2026-11-02
- LMArena: Arena leaderboard dataset, text_style_control overall: GPT-6 Luna (Max)
elo rating · as of 2026-10-28