# GPT-5.5 Instant vs Nova 2 Lite

> GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 39.0 on the Noometry Index.

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

## Summary

- They share 17 benchmarks with published results for both. GPT-5.5 Instant scores higher in 6 categories and Nova 2 Lite in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Nova 2 Lite leads 34.8 to 26.1.

## Snapshot

| | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| Provider | OpenAI | Amazon |
| Noometry Index | 42.5 | 39.0 |
| Rank | 99 | 161 |
| Context | — | 1M |
| Input $/M | — | $0.30 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.5 Instant: 43.7 (#73)
- Nova 2 Lite: 40.1 (#131)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Coding | 1433 | 1386 |
| SciCode | 48.6% | — |

## Agentic & Tool Use

- GPT-5.5 Instant: —
- Nova 2 Lite: 23.9 (#114)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 27.1% |

## Reasoning

- GPT-5.5 Instant: 24.2 (#149)
- Nova 2 Lite: 26.4 (#120)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Hard Prompts | 1426 | 1364 |
| CritPt | 0% | — |
| Chess Puzzles | 12% | — |
| Epoch Capabilities Index | 142.48 | — |

## Math

- GPT-5.5 Instant: 26.1 (#241)
- Nova 2 Lite: 34.8 (#154)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Math | 1420 | 1359 |
| FrontierMath (Tiers 1-3) | 26.3% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 68.1% | — |

## Knowledge

- GPT-5.5 Instant: 48.9 (#68)
- Nova 2 Lite: 42.5 (#88)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Expert | 1409 | 1360 |
| GPQA Diamond | 82.5% | — |
| Vectara Hallucination Rate | — | 5.1% |

## Multimodal

- GPT-5.5 Instant: 39.3 (#48)
- Nova 2 Lite: —

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Vision | 1250 | — |
| LMArena Document | 1403 | — |

## Multilingual

- GPT-5.5 Instant: 53.0 (#76)
- Nova 2 Lite: 47.3 (#148)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Non-English | 1417 | 1337 |
| LMArena Chinese | 1457 | 1364 |
| LMArena French | 1428 | 1381 |
| LMArena German | 1410 | 1343 |
| LMArena Japanese | 1408 | 1273 |
| LMArena Korean | 1393 | 1284 |
| LMArena Russian | 1430 | 1343 |
| LMArena Spanish | 1430 | 1372 |

## Instruction Following

- GPT-5.5 Instant: 74.4 (#94)
- Nova 2 Lite: 70.7 (#156)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Instruction Following | 1407 | 1335 |

## Long Context

- GPT-5.5 Instant: 43.4 (#92)
- Nova 2 Lite: 40.6 (#145)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Longer Query | 1422 | 1335 |

## Writing & Preference

- GPT-5.5 Instant: 62.0 (#81)
- Nova 2 Lite: 54.1 (#150)

| Benchmark | GPT-5.5 Instant | Nova 2 Lite |
|---|---|---|
| LMArena Text | 1419 | 1362 |
| LMArena Creative Writing | 1420 | 1291 |
| LMArena Multi-Turn | 1434 | 1338 |

## FAQ

### Is GPT-5.5 Instant better than Nova 2 Lite?

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 39.0 on the Noometry Index.

### Is GPT-5.5 Instant or Nova 2 Lite better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 43.7 versus 40.1 in the Noometry coding category.

### How many benchmarks do GPT-5.5 Instant and Nova 2 Lite share?

17 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Nova 2 Lite has 19.