GPT-5.6 Luna

OpenAI · gpt-5.6-luna

GPT-5.6 Luna from OpenAI: $0.2 per million input tokens, $1.2 per million output tokens, $0.02 per million cached input tokens.

Prices in US dollars per million units
Rate	Price	Applies
Input	$0.2 per 1M input tokens	Ordinary
Cached input	$0.02 per 1M cached input tokens	Ordinary
Cache write	$0.25 per 1M cache write tokens	Ordinary
Output	$1.2 per 1M output tokens	Ordinary
Input	$0.22 per 1M input tokens	us
Input	$0.22 per 1M input tokens	eu
Input	$0.11 per 1M input tokens	BATCH tier, us
Input	$0.1 per 1M input tokens	BATCH tier
Input	$0.11 per 1M input tokens	BATCH tier, eu
Input	$0.11 per 1M input tokens	FLEX tier, us
Input	$0.1 per 1M input tokens	FLEX tier
Input	$0.11 per 1M input tokens	FLEX tier, eu
Input	$0.4 per 1M input tokens	PRIORITY tier
Input	$0.44 per 1M input tokens	PRIORITY tier, eu
Input	$0.44 per 1M input tokens	PRIORITY tier, us
Input	$0.44 per 1M input tokens	prompts over 272,000 tokens, us
Input	$0.4 per 1M input tokens	prompts over 272,000 tokens
Input	$0.44 per 1M input tokens	prompts over 272,000 tokens, eu
Input	$0.22 per 1M input tokens	BATCH tier, prompts over 272,000 tokens, us
Input	$0.2 per 1M input tokens	BATCH tier, prompts over 272,000 tokens
Input	$0.22 per 1M input tokens	BATCH tier, prompts over 272,000 tokens, eu
Input	$0.22 per 1M input tokens	FLEX tier, prompts over 272,000 tokens, eu
Input	$0.2 per 1M input tokens	FLEX tier, prompts over 272,000 tokens
Input	$0.22 per 1M input tokens	FLEX tier, prompts over 272,000 tokens, us
Input	$0.88 per 1M input tokens	PRIORITY tier, prompts over 272,000 tokens, us
Input	$0.8 per 1M input tokens	PRIORITY tier, prompts over 272,000 tokens
Input	$0.88 per 1M input tokens	PRIORITY tier, prompts over 272,000 tokens, eu
Cached input	$0.022 per 1M cached input tokens	eu
Cached input	$0.022 per 1M cached input tokens	us
Cached input	$0.011 per 1M cached input tokens	BATCH tier, us
Cached input	$0.011 per 1M cached input tokens	BATCH tier, eu
Cached input	$0.01 per 1M cached input tokens	BATCH tier
Cached input	$0.011 per 1M cached input tokens	FLEX tier, us
Cached input	$0.011 per 1M cached input tokens	FLEX tier, eu
Cached input	$0.01 per 1M cached input tokens	FLEX tier
Cached input	$0.044 per 1M cached input tokens	PRIORITY tier, us
Cached input	$0.044 per 1M cached input tokens	PRIORITY tier, eu
Cached input	$0.04 per 1M cached input tokens	PRIORITY tier
Cached input	$0.044 per 1M cached input tokens	prompts over 272,000 tokens, eu
Cached input	$0.04 per 1M cached input tokens	prompts over 272,000 tokens
Cached input	$0.044 per 1M cached input tokens	prompts over 272,000 tokens, us
Cached input	$0.02 per 1M cached input tokens	BATCH tier, prompts over 272,000 tokens
Cached input	$0.022 per 1M cached input tokens	BATCH tier, prompts over 272,000 tokens, us
Cached input	$0.022 per 1M cached input tokens	BATCH tier, prompts over 272,000 tokens, eu
Cached input	$0.022 per 1M cached input tokens	FLEX tier, prompts over 272,000 tokens, us
Cached input	$0.02 per 1M cached input tokens	FLEX tier, prompts over 272,000 tokens
Cached input	$0.022 per 1M cached input tokens	FLEX tier, prompts over 272,000 tokens, eu
Cached input	$0.08 per 1M cached input tokens	PRIORITY tier, prompts over 272,000 tokens
Cached input	$0.088 per 1M cached input tokens	PRIORITY tier, prompts over 272,000 tokens, eu
Cached input	$0.088 per 1M cached input tokens	PRIORITY tier, prompts over 272,000 tokens, us
Cache write	$0.275 per 1M cache write tokens	eu
Cache write	$0.275 per 1M cache write tokens	us
Cache write	$0.138 per 1M cache write tokens	BATCH tier, us
Cache write	$0.138 per 1M cache write tokens	BATCH tier, eu
Cache write	$0.125 per 1M cache write tokens	BATCH tier
Cache write	$0.55 per 1M cache write tokens	prompts over 272,000 tokens, us
Cache write	$0.5 per 1M cache write tokens	prompts over 272,000 tokens
Cache write	$0.55 per 1M cache write tokens	prompts over 272,000 tokens, eu
Output	$1.32 per 1M output tokens	us
Output	$1.32 per 1M output tokens	eu
Output	$0.6 per 1M output tokens	BATCH tier
Output	$0.66 per 1M output tokens	BATCH tier, us
Output	$0.66 per 1M output tokens	BATCH tier, eu
Output	$0.66 per 1M output tokens	FLEX tier, eu
Output	$0.66 per 1M output tokens	FLEX tier, us
Output	$0.6 per 1M output tokens	FLEX tier
Output	$2.64 per 1M output tokens	PRIORITY tier, us
Output	$2.4 per 1M output tokens	PRIORITY tier
Output	$2.64 per 1M output tokens	PRIORITY tier, eu
Output	$1.98 per 1M output tokens	prompts over 272,000 tokens, us
Output	$1.98 per 1M output tokens	prompts over 272,000 tokens, eu
Output	$1.8 per 1M output tokens	prompts over 272,000 tokens
Output	$0.9 per 1M output tokens	BATCH tier, prompts over 272,000 tokens
Output	$0.99 per 1M output tokens	BATCH tier, prompts over 272,000 tokens, eu
Output	$0.99 per 1M output tokens	BATCH tier, prompts over 272,000 tokens, us
Output	$0.9 per 1M output tokens	FLEX tier, prompts over 272,000 tokens
Output	$0.99 per 1M output tokens	FLEX tier, prompts over 272,000 tokens, eu
Output	$0.99 per 1M output tokens	FLEX tier, prompts over 272,000 tokens, us
Output	$3.96 per 1M output tokens	PRIORITY tier, prompts over 272,000 tokens, eu
Output	$3.96 per 1M output tokens	PRIORITY tier, prompts over 272,000 tokens, us
Output	$3.6 per 1M output tokens	PRIORITY tier, prompts over 272,000 tokens

Released: 9 Jul 2026
Most input tokens: 922,000
Most output tokens: 128,000