GPT-5.6 Terra
openai/gpt-5.6-terra
Balanced GPT-5.6 model for capable, cost-efficient everyday work
Capabilities
ReasoningYes
Tool callingYes
Structured outputYes
TemperatureFixed
AttachmentYes
Open weightsNo
Limits
Context1,050,000 tokens
Max input922,000 tokens
Max output128,000 tokens
Details
Familygpt-terra
Knowledge cutoff2026-02-16
Release date2026-07-09
Last updated2026-07-09
Modalities
Inputtext, image, pdf
Outputtext
Benchmarks
SWE-Bench Pro
63.4
resolve rate
Terminal-Bench
87.4
success rate
DeepSWE
69.6
resolve rate
GPQA Diamond
92.9
accuracy
FrontierMath
84.9
accuracy
BrowseComp
87.5
accuracy
OSWorld
50.2
success rate
MMMU Pro
80.7
accuracy
Agents' Last Exam
50.4
Toolathlon
53.1
success rate
Artificial Analysis Intelligence Index
55
index score
Artificial Analysis Coding Agent Index
77.4
index score
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A