GPT-5.6 Luna
GPT-5.6 model optimized for cost-sensitive workloads
A GPT-5.6 model designed for cost-sensitive, high-volume workloads; it supports text output, accepts text and image input, and has configurable reasoning effort.
Pricing
Model profile · Current snapshot
Input / 1M
$0.20
Output / 1M
$1.20
Blended / 1M
$0.45
Output TPS
123
TTFT (s)
109
Model Intelligence
Context window
1,050,000 tokens
Arena ranking
38
Benchmarkable
Yes
Model level
release
Intelligence Index
37.5
Coding Index
71.4
GPQA
0.91
HLE
0.4
SciCode
0.54
LCR
0.84
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