GPT-5.6 Terra
GPT-5.6 model that balances intelligence and cost
GPT-5.6 Terra is an OpenAI GPT-5.6 model release designed to balance intelligence and cost for everyday work. It supports text and image input with text output, reasoning tokens, tool use, a 1,050,000-token context window, and 128,000 max output tokens.
Pricing
Model profile · Current snapshot
Input / 1M
$2.00
Output / 1M
$12.00
Blended / 1M
$4.50
Output TPS
120
TTFT (s)
121
Model Intelligence
Context window
1,050,000 tokens
Arena ranking
57
Benchmarkable
Yes
Model level
release
Intelligence Index
56.6
Coding Index
76.7
GPQA
0.93
HLE
0.43
SciCode
0.54
IFBench
0.71
LCR
0.8
TerminalBench Hard
0.58
TAU2
0.86
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