# GPT-5.5 Instant vs Hy3

> Hy3 is the stronger model overall, scoring 43.6 to 42.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-5-instant-vs-hy3
- Last updated: 2026-10-10
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. GPT-5.5 Instant scores higher in 1 category and Hy3 in 7 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy3 leads 37.4 to 26.1.
- Hy3 has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Instant | Hy3 |
|---|---|---|
| Provider | OpenAI | Tencent |
| Noometry Index | 42.5 | 43.6 |
| Rank | 99 | 79 |
| Context | — | 262K |
| Input $/M | — | $0.13 |
| Output $/M | — | $0.53 |
| Weights | Proprietary | Open |

## Coding

- GPT-5.5 Instant: 43.7 (#73)
- Hy3: 46.6 (#60)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Coding | 1433 | 1465 |
| LMArena WebDev | — | 1509 |
| SciCode | 48.6% | — |

## Reasoning

- GPT-5.5 Instant: 24.2 (#149)
- Hy3: 25.0 (#134)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Hard Prompts | 1426 | 1449 |
| NYT Connections (extended) | — | 41.2% |
| CritPt | 0% | — |
| Chess Puzzles | 12% | — |
| Epoch Capabilities Index | 142.48 | — |

## Math

- GPT-5.5 Instant: 26.1 (#241)
- Hy3: 37.4 (#98)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Math | 1420 | 1475 |
| 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)
- Hy3: 40.2 (#108)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Expert | 1409 | 1461 |
| GPQA Diamond | 82.5% | — |

## Multimodal

- GPT-5.5 Instant: 39.3 (#48)
- Hy3: —

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Vision | 1250 | — |
| LMArena Document | 1403 | — |

## Multilingual

- GPT-5.5 Instant: 53.0 (#76)
- Hy3: 53.7 (#60)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Non-English | 1417 | 1427 |
| LMArena Chinese | 1457 | 1496 |
| LMArena French | 1428 | 1461 |
| LMArena Korean | 1393 | 1390 |
| LMArena Russian | 1430 | 1435 |
| LMArena Spanish | 1430 | 1448 |
| LMArena German | 1410 | — |
| LMArena Japanese | 1408 | — |

## Instruction Following

- GPT-5.5 Instant: 74.4 (#94)
- Hy3: 75.3 (#68)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Instruction Following | 1407 | 1425 |

## Long Context

- GPT-5.5 Instant: 43.4 (#92)
- Hy3: 44.1 (#70)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Longer Query | 1422 | 1443 |

## Writing & Preference

- GPT-5.5 Instant: 62.0 (#81)
- Hy3: 62.5 (#75)

| Benchmark | GPT-5.5 Instant | Hy3 |
|---|---|---|
| LMArena Text | 1419 | 1442 |
| LMArena Creative Writing | 1420 | 1399 |
| LMArena Multi-Turn | 1434 | 1436 |

## FAQ

### Is GPT-5.5 Instant better than Hy3?

Hy3 is the stronger model overall, scoring 43.6 to 42.5 on the Noometry Index.

### Is GPT-5.5 Instant or Hy3 better for coding?

Hy3 scores higher on coding benchmarks: 46.6 versus 43.7 in the Noometry coding category.

### How many benchmarks do GPT-5.5 Instant and Hy3 share?

15 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Hy3 has 17.