GPT-5.6 Luna

Fastest, cheapest GPT-5.6 model (standard tier, <=272K context).

Input / 1M
$0.2
OpenAI
Output / 1M
$1.20
Cached input
$0.02
discounted reads
Context
400K
128K max output

Price history

input unchanged · verified 2h ago

Price changes

no changes recorded yet

No rate changes have been recorded since this model was added. New entries appear here automatically whenever a pricing sync updates a rate.

Specifications

Provider
OpenAI
Model ID
gpt-5-6-luna
Modality
text+image
Context window
400K tokens
Max output
128K tokens
Tokenizer family
o200k

Cost at similar prices

10,000 requests/month · 2000 in / 600 out tokens