# GPT-5.6 Luna vs Nova 2 Lite

> GPT-5.6 Luna is the stronger model overall, scoring 54.7 to 39.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-6-luna-vs-nova-2-lite
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. GPT-5.6 Luna scores higher in 9 categories and Nova 2 Lite in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.6 Luna leads 77.5 to 34.8.
- GPT-5.6 Luna is cheaper at $0.20 / $1.20 per million input/output tokens, against $0.30 / $2.50 for Nova 2 Lite.
- GPT-5.6 Luna accepts more context: 1.05M tokens versus 1M.

## Snapshot

| | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| Provider | OpenAI | Amazon |
| Noometry Index | 54.7 | 39.0 |
| Rank | 24 | 161 |
| Context | 1.05M | 1M |
| Input $/M | $0.20 | $0.30 |
| Output $/M | $1.20 | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.6 Luna: 53.9 (#25)
- Nova 2 Lite: 40.1 (#131)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Coding | 1466 | 1386 |
| DeepSWE | 67.2% | — |
| FrontierCode | 39.8% | — |
| CursorBench | 35.9% | — |
| LMArena WebDev | 1517 | — |
| SciCode | 53.6% | — |
| WeirdML | 60.9% | — |
| ALE-Bench | 1,667 | — |

## Agentic & Tool Use

- GPT-5.6 Luna: 35.3 (#37)
- Nova 2 Lite: 23.9 (#114)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 27.1% |
| BALROG | 45.6% | — |
| GDP.pdf | 22.7% | — |
| Vending-Bench 2 | 4,095 | — |

## Reasoning

- GPT-5.6 Luna: 47.5 (#38)
- Nova 2 Lite: 26.4 (#120)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Hard Prompts | 1452 | 1364 |
| ARC-AGI-2 | 59.5% | — |
| SimpleBench | 46.8% | — |
| Kagi LLM Benchmark | 49.1% | — |
| NYT Connections (extended) | 69.4% | — |
| ARC-AGI-1 | 88% | — |
| CritPt | 20.6% | — |
| Chess Puzzles | 40% | — |
| Mystery Game Puzzles | 21% | — |
| DTBench | 89.1% | — |
| LMCA | 48.5% | — |
| Surface Evolver Bench | 61.9% | — |
| Epoch Capabilities Index | 156.32 | — |

## Math

- GPT-5.6 Luna: 77.5 (#12)
- Nova 2 Lite: 34.8 (#154)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Math | 1455 | 1359 |
| FrontierMath (Tiers 1-3) | 82.1% | — |
| FrontierMath Tier 4 | 61% | — |
| OTIS Mock AIME 2024-2025 | 98.3% | — |
| ProofBench | 60% | — |

## Knowledge

- GPT-5.6 Luna: 58.6 (#31)
- Nova 2 Lite: 42.5 (#88)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Expert | 1479 | 1360 |
| GPQA Diamond | 91.6% | — |
| SimpleQA Verified | 41% | — |
| Vectara Hallucination Rate | — | 5.1% |

## Multimodal

- GPT-5.6 Luna: 43.0 (#22)
- Nova 2 Lite: —

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Vision | 1259 | — |
| Blueprint-Bench 2 | 22.6% | — |
| Furniture Assembly | 42.5% | — |
| LMArena Document | 1457 | — |

## Multilingual

- GPT-5.6 Luna: 53.0 (#73)
- Nova 2 Lite: 47.3 (#148)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Non-English | 1418 | 1337 |
| LMArena Chinese | 1469 | 1364 |
| LMArena French | 1457 | 1381 |
| LMArena German | 1459 | 1343 |
| LMArena Japanese | 1416 | 1273 |
| LMArena Korean | 1414 | 1284 |
| LMArena Russian | 1428 | 1343 |
| LMArena Spanish | 1445 | 1372 |

## Instruction Following

- GPT-5.6 Luna: 76.0 (#48)
- Nova 2 Lite: 70.7 (#156)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Instruction Following | 1440 | 1335 |

## Long Context

- GPT-5.6 Luna: 43.9 (#78)
- Nova 2 Lite: 40.6 (#145)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Longer Query | 1437 | 1335 |

## Writing & Preference

- GPT-5.6 Luna: 68.3 (#27)
- Nova 2 Lite: 54.1 (#150)

| Benchmark | GPT-5.6 Luna | Nova 2 Lite |
|---|---|---|
| LMArena Text | 1432 | 1362 |
| LMArena Creative Writing | 1397 | 1291 |
| LMArena Multi-Turn | 1433 | 1338 |
| EQ-Bench Creative Writing | 1829 | — |
| EQ-Bench 4 | 1156 | — |

## FAQ

### Is GPT-5.6 Luna better than Nova 2 Lite?

GPT-5.6 Luna is the stronger model overall, scoring 54.7 to 39.0 on the Noometry Index.

### Which is cheaper, GPT-5.6 Luna or Nova 2 Lite?

GPT-5.6 Luna is cheaper. It lists at $0.20 per million input tokens and $1.20 per million output tokens; Nova 2 Lite lists at $0.30 and $2.50.

### Is GPT-5.6 Luna or Nova 2 Lite better for coding?

GPT-5.6 Luna scores higher on coding benchmarks: 53.9 versus 40.1 in the Noometry coding category.

### Which has the bigger context window?

GPT-5.6 Luna does, with 1.05M tokens against 1M.

### How many benchmarks do GPT-5.6 Luna and Nova 2 Lite share?

17 benchmarks have published results for both models. GPT-5.6 Luna has 51 scored results on Noometry and Nova 2 Lite has 19.