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GPTFast / Budget

GPT 5.6 Luna Pricing History

Current pricing: $0.20 input / $1.20 output per million tokens.

Input / MTok

$0.20

Output / MTok

$1.20

Cache discount

90% off

Context window

1,050K

Changelog

Price changes

2 recorded changes for GPT 5.6 Luna.
Aug 13, 2026
GPT
Input price
$1.00 → $0.20/MTok
Down
Aug 13, 2026
GPT
Output price
$6.00 → $1.20/MTok
Down

Compare

How GPT 5.6 Luna compares

Current pricing vs other fast / budget models across providers.
GPT 5.6 LunaCurrent
GPT
$0.20
$1.20
Gemini 3.5 Flash-Lite
Gemini
$0.30
$2.50
Gemini 3 Flash
Gemini
$0.50
$3.00
Claude Haiku 4.5
Claude
$1.00
$5.00
Grok Build 0.1
Grok
$1.00
$2.00
Gemini 3.5 Flash
Gemini
$1.50
$9.00

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