GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Rank
#16
Up 15% week over week
Tokens
893.6B
2026-08-14
Requests
29.9M
29,855,318
Tool calls
-
Input / M
$1.00
Output / M
$6.00
Cache / M
$0.10
Context
1.1M
1,050,000 tokens