GPT-5.6 Terra
Official information
- Release date
- Jul 9, 2026
- Context window
- 1,100,000 tokens
- Official model ID
- gpt-5.6-terra
- Vendor source
- GPT-5.6 Terra
- Identity verified
- Aug 13, 2026
API pricing
- Verification
- Retained last valid price
- Verified at
- Value benchmark tier
- Fixed USD rate
| Tier / region | Input / output · per MTok | Context pricing tier | Billing | Validity | Source |
|---|---|---|---|---|---|
| Fixed USD rate | $2 / $12 | — | PAYG | — | Official rates |
Rankings by category
Overall
#17High 0.8565.8
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 84.7 | 160.1 | Single config |
| LiveBench | 68.5 | 78.6 | Single config |
| LMArena | 44.1 | 1448.2 | Single config |
Cross-source percentile spread 40.6
Coding
#18High 0.8356.4
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| DeepSWE | 54.2 | 53.8 | Median of 5 configs |
| LiveBench | 64.1 | 64.3 | Single config |
| LMArenatext-coding | 53.9 | 1485.8 | Single config |
| · webdev | 47.9 | 1520.5 | Single config |
Cross-source percentile spread 13.2
Agent
#15High 0.9152.1
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Agents' Last Exam | 62.5 | 50.7 | Single config |
| DeepSWE | 54.2 | 53.8 | Median of 5 configs |
| LMArena | 39.6 | 0.0 | Single config |
Cross-source percentile spread 22.9
Reasoning
#27High 0.8154.7
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 32.3 | 0.9 | Median of 3 configs |
| LiveBench | 83.7 | 92.8 | Single config |
| LMArenatext-math | 46.1 | 1466.3 | Single config |
| · text-hard | 50.0 | 1469.3 | Single config |
Cross-source percentile spread 51.4
Value
#13High 0.8547.6
Aliases & configurations
- gpt-5-6-terra
- gpt-5-6-terra-max· max effort
- gpt-5-6-terra-xhigh· xhigh
- gpt-5-6-terra-xhigh-codex-harness· xhigh / codex harness