# GPT-5.5 Pro vs Hy3

> GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 43.6 on the Noometry Index. Hy3 costs 293× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-5-5-pro-vs-hy3
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.6 to 25.0.
- Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
- GPT-5.5 Pro accepts more context: 1.05M tokens versus 262K.
- Hy3 has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Pro | Hy3 |
|---|---|---|
| Provider | OpenAI | Tencent |
| Noometry Index | 64.3 | 43.6 |
| Rank | 7 | 79 |
| Context | 1.05M | 262K |
| Input $/M | $30 | $0.13 |
| Output $/M | $180 | $0.53 |
| Weights | Proprietary | Open |

## Coding

- GPT-5.5 Pro: —
- Hy3: 46.6 (#60)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| LMArena WebDev | — | 1509 |
| LMArena Coding | — | 1465 |

## Reasoning

- GPT-5.5 Pro: 73.6 (#7)
- Hy3: 25.0 (#134)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| NYT Connections (extended) | — | 41.2% |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| LMArena Hard Prompts | — | 1449 |
| DTBench | 96% | — |
| LMCA | 53.9% | — |
| Epoch Capabilities Index | 162.45 | — |

## Math

- GPT-5.5 Pro: 83.8 (#8)
- Hy3: 37.4 (#98)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| LMArena Math | — | 1475 |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |

## Knowledge

- GPT-5.5 Pro: 64.2 (#17)
- Hy3: 40.2 (#108)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| GPQA Diamond | 93.9% | — |
| LMArena Expert | — | 1461 |

## Multilingual

- GPT-5.5 Pro: —
- Hy3: 53.7 (#60)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| LMArena Non-English | — | 1427 |
| LMArena Chinese | — | 1496 |
| LMArena French | — | 1461 |
| LMArena Korean | — | 1390 |
| LMArena Russian | — | 1435 |
| LMArena Spanish | — | 1448 |

## Instruction Following

- GPT-5.5 Pro: —
- Hy3: 75.3 (#68)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| LMArena Instruction Following | — | 1425 |

## Long Context

- GPT-5.5 Pro: —
- Hy3: 44.1 (#70)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| LMArena Longer Query | — | 1443 |

## Writing & Preference

- GPT-5.5 Pro: —
- Hy3: 62.5 (#75)

| Benchmark | GPT-5.5 Pro | Hy3 |
|---|---|---|
| LMArena Text | — | 1442 |
| LMArena Creative Writing | — | 1399 |
| LMArena Multi-Turn | — | 1436 |

## FAQ

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

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 43.6 on the Noometry Index. Hy3 costs 293× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

### Which is cheaper, GPT-5.5 Pro or Hy3?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; GPT-5.5 Pro lists at $30 and $180.

### Which has the bigger context window?

GPT-5.5 Pro does, with 1.05M tokens against 262K.

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

0 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Hy3 has 17.