Wednesday, September 23, 2026 · No. 423Prices synced 3 hours ago
All·AI·Model

The AI Model Price Index

GPT-6 Luna

by Merge Gateway · family gpt-luna · listed Sep 2026RTV

OpenAI's most efficient model for focused, high-volume tasks

Current rates USD per 1M tokens

Input$0.10
Output$0.50
Cache read$0.01
Cache write$0.125

Against the market

Input price vs. maker flagships ($/1M tokens)
GPT-6 LunaGPT-6 Luna: $0.10 per 1M tokens$0.10DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.15 per 1M tokens$0.15Qwen3.8 FlashQwen3.8 Flash: $0.15 per 1M tokens$0.15Gemini 3.8 FlashGemini 3.8 Flash: $0.75 per 1M tokens$0.75GLM-5.3GLM-5.3: $1.40 per 1M tokens$1.40GPT-6 SolGPT-6 Sol: $2.00 per 1M tokens$2.00Grok 4.7Grok 4.7: $2.00 per 1M tokens$2.00Claude Opus 5.5Claude Opus 5.5: $4.00 per 1M tokens$4.00
Output price vs. maker flagships ($/1M tokens)
Qwen3.8 FlashQwen3.8 Flash: $0.47 per 1M tokens$0.47GPT-6 LunaGPT-6 Luna: $0.50 per 1M tokens$0.50DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.60 per 1M tokens$0.60Gemini 3.8 FlashGemini 3.8 Flash: $3.75 per 1M tokens$3.75GLM-5.3GLM-5.3: $4.40 per 1M tokens$4.40Grok 4.7Grok 4.7: $6.00 per 1M tokens$6.00GPT-6 SolGPT-6 Sol: $10.00 per 1M tokens$10.00Claude Opus 5.5Claude Opus 5.5: $20.00 per 1M tokens$20.00

On the record

Model id
openai/gpt-6-luna
Context window
1.1M tokens
Max output
128K tokens
Input modalities
text, image
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
May 2026
Released
2026-09-22
Last updated
2026-09-22
Provider docs
docs.merge.dev/merge-gateway

Back of the envelope

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