Abacus
GPT-5.6 Terra
Balanced GPT-5.6 model for capable, cost-efficient everyday work
gpt-5.6-terraContext
1M
Max output
128K
Input $/M
$2.50
Output $/M
$15.00
Cache read $/M
$0.25
Cache write $/M
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Against the catalogue
Context window1M
Larger than 88% of the 5,751 models listed
Input price$2.50
Cheaper than 14% of priced models
Capabilities
Reasoningsupported
Tool callingsupported
Structured outputsupported
Attachmentssupported
Temperaturenot supported
Open weightsnot supported
Interleaved thinkingnot supported
Modalities
Input
TextImage
Output
Text
Pricing detail
| Rate | Base $/M |
|---|---|
| Input | $2.50 |
| Output | $15.00 |
| Cache read | $0.25 |