GPT 5.6 Terra (Fast)
By openai
openai/gpt-5.6-terra-fastGPT-5.6 Terra is a balanced GPT-5.6 model for everyday work, with performance comparable to the previous generation at half the cost.
ReleasedJul 9, 2026
Pricing
Pricing (Input)$4.00/M
Pricing (Output)$24.00/M
CachingYes
Limits
Context Length1.1M
Max Output Tokens128K
Input Modalities
TextSupported
ImageSupported
PDFSupported
AudioNot supported
Output Modalities
TextSupported
ImageNot supported
AudioNot supported
Features
ReasoningSupported
ToolsSupported
TemperatureSupported