gpt-6-luna API pricing

OpenAI charges $0.1 per million input tokens and $0.5 per million output tokens for gpt-6-luna, and $0.01 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.00035, or $0.000175 through the batch API.

Prices updated October 28, 2026
Input / 1M tokens
$0.1
Output / 1M tokens
$0.5
Cached input / 1M tokens
$0.01
Typical request
$0.00035
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gpt-6-luna price per million tokens

Token typeStandardBatch API
Input$0.1$0.05
Cached input$0.01$0.005
Output$0.5$0.25

gpt-6-luna supports a 922K-token context window, up to 128K output tokens, image input, tool calling and reasoning.

What gpt-6-luna costs per request

Request1 request1,000 requests1M requests
Short chat message (300 in, 200 out)$0.00013$0.13$130.00
Typical request (1K in, 500 out)$0.00035$0.35$350.00
Long document summary (20K in, 1K out)$0.0025$2.50$2,500.00
Coding agent step (50K in, 2K out)$0.006$6.00$6,000.00

At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words.

Models with a similar price

ModelProviderInput / 1MCached input / 1MOutput / 1MTypical request
deepseek-coderDeepSeek$0.14$0.014$0.28$0.00028
gemini-2.5-flash-liteGoogle Gemini$0.1$0.01$0.4$0.0003
ministral-3-14b-2512Mistral$0.2$0.02$0.2$0.0003
ministral-14b-2512Mistral$0.2$0.02$0.2$0.0003
claude-haiku-5-5Anthropic$0.1$0.01$0.5$0.00035
mistral-tinyMistral$0.25$0.025$0.25$0.000375
gpt-4o-miniOpenAI$0.15$0.075$0.6$0.00045
open-mistral-nemoMistral$0.3$0.03$0.3$0.00045

Other OpenAI models

Source: OpenAI pricing.