GPT-5.6 Luna
Official information
- Release date
- Jul 9, 2026
- Context window
- 1,100,000 tokens
- Official model ID
- gpt-5.6-luna
- Vendor source
- GPT-5.6 Luna
- 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 | $0.2 / $1.2 | — | PAYG | — | Official rates |
Rankings by category
Overall
#33High 0.8640.2
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 62.2 | 156.5 | Single config |
| LiveBench | 35.9 | 73.7 | Single config |
| LMArena | 22.5 | 1431.1 | Single config |
Cross-source percentile spread 39.7
Coding
#35High 0.7836.6
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| DeepSWE | 22.9 | 44.2 | Median of 5 configs |
| LiveBench | 48.9 | 62.2 | Single config |
| LMArenatext-coding | 30.4 | 1466.8 | Single config |
| · webdev | 45.7 | 1518.9 | Single config |
Cross-source percentile spread 26.0
Agent
#20Medium 0.6940.9
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Agents' Last Exam | 58.9 | 49.4 | Single config |
| DeepSWE | 22.9 | 44.2 | Median of 5 configs |
Cross-source percentile spread 36.0
Reasoning
#44High 0.8530.1
| Source | Percentile | Raw score | Config folding |
|---|---|---|---|
| Epoch AI | 7.3 | 0.8 | Median of 3 configs |
| LiveBench | 46.7 | 86.4 | Single config |
| LMArenatext-math | 38.2 | 1459.4 | Single config |
| · text-hard | 34.3 | 1451.9 | Single config |
Cross-source percentile spread 39.4
Value
#3High 0.8663.1
Aliases & configurations
- gpt-5-6-luna
- gpt-5-6-luna-max· max effort
- gpt-5-6-luna-xhigh· xhigh
- gpt-5-6-luna-xhigh-codex-harness· xhigh / codex harness