GPT-5.6 Terra
GPT-5.6 model that balances intelligence and cost
GPT-5.6 Terra is a specific OpenAI AI model release referenced for Codex and API use, including lower-cost coding and reasoning workloads.
Pricing
Model profile · Current snapshot
Input / 1M
$2.00
Output / 1M
$12.00
Blended / 1M
$4.50
Output TPS
124
TTFT (s)
153
Model Intelligence
Arena ranking
42
Benchmarkable
Yes
Model level
release
Intelligence Index
42.3
Coding Index
76.7
GPQA
0.93
HLE
0.43
SciCode
0.55
IFBench
0.71
LCR
0.83
TerminalBench Hard
0.58
TAU2
0.86
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