OpenAI
GPT-5.6 Terra (xhigh)
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...
Introducing GPT-5Model Snapshot
ReleaseJul 9, 2026
Context1,050,000
Overall
Rank #17 across 566
51.6
Coding
Rank #24 across 222
70.6
Blended Price
Rank #316 across 371
$5.63/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Output Speed117.6 tok/s
First Token11.87s
Max Output128,000
Pricing
Blended$5.63/M
Input$2.50/M
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 51.6 | #17 |
| Artificial Analysis Coding Index | coding | 70.6 | #24 |
| LiveBench Mathematics | math | 89.5% | #14 |
| GPQA | reasoning | 90.8% | #25 |