# Grok 4.3 vs Hy3

> Grok 4.3 and Hy3 score almost the same on the Noometry Index (43.8 vs 44.2), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/grok-4-3-vs-hy3
- Last updated: 2026-10-11
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Grok 4.3 scores higher in 3 categories and Hy3 in 5 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 4.3 leads 52.5 to 40.8.
- The biggest single-benchmark swing is NYT Connections (extended): 55.2% for Grok 4.3 and 41.2% for Hy3.
- Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
- Grok 4.3 accepts more context: 1M tokens versus 262K.
- Hy3 has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.3 | Hy3 |
|---|---|---|
| Provider | xAI | Tencent |
| Noometry Index | 43.8 | 44.2 |
| Rank | 86 | 79 |
| Context | 1M | 262K |
| Input $/M | $1.25 | $0.13 |
| Output $/M | $2.50 | $0.53 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.3: 41.6 (#121)
- Hy3: 46.8 (#63)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena WebDev | 1357 | 1508 |
| LMArena Coding | 1415 | 1464 |
| SciCode | 47.3% | — |
| WeirdML | 49.9% | — |
| ALE-Bench | 944.17 | — |

## Agentic & Tool Use

- Grok 4.3: 27.7 (#99)
- Hy3: —

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| GDP.pdf | 8% | — |
| LMArena Search | 1165 | — |
| Vending-Bench 2 | 35.26 | — |

## Reasoning

- Grok 4.3: 35.9 (#68)
- Hy3: 26.1 (#136)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| NYT Connections (extended) | 55.2% | 41.2% |
| LMArena Hard Prompts | 1396 | 1447 |
| CritPt | 8% | — |
| Chess Puzzles | 25% | — |
| DTBench | 90.7% | — |
| LMCA | 38.3% | — |
| Epoch Capabilities Index | 149.16 | — |
| ForecastBench | 60.3 | — |

## Math

- Grok 4.3: 46.0 (#74)
- Hy3: 40.1 (#93)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Math | 1388 | 1475 |
| FrontierMath (Tiers 1-3) | 42.8% | — |
| FrontierMath Tier 4 | 14.6% | — |
| OTIS Mock AIME 2024-2025 | 93.3% | — |
| ProofBench | 11% | — |

## Knowledge

- Grok 4.3: 52.5 (#62)
- Hy3: 40.8 (#114)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Expert | 1385 | 1460 |
| GPQA Diamond | 88.8% | — |
| SimpleQA Verified | 33.2% | — |

## Multimodal

- Grok 4.3: 31.6 (#104)
- Hy3: —

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Vision | 1229 | — |
| Blueprint-Bench 2 | 0% | — |

## Multilingual

- Grok 4.3: 50.5 (#120)
- Hy3: 53.5 (#65)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Non-English | 1385 | 1426 |
| LMArena Chinese | 1422 | 1493 |
| LMArena French | 1412 | 1461 |
| LMArena German | 1395 | 1439 |
| LMArena Japanese | 1379 | 1392 |
| LMArena Korean | 1356 | 1395 |
| LMArena Russian | 1399 | 1432 |
| LMArena Spanish | 1398 | 1456 |

## Instruction Following

- Grok 4.3: 72.1 (#140)
- Hy3: 75.1 (#70)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Instruction Following | 1366 | 1426 |

## Long Context

- Grok 4.3: 42.5 (#123)
- Hy3: 44.1 (#75)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Longer Query | 1393 | 1442 |

## Writing & Preference

- Grok 4.3: 58.5 (#118)
- Hy3: 62.2 (#81)

| Benchmark | Grok 4.3 | Hy3 |
|---|---|---|
| LMArena Text | 1397 | 1439 |
| LMArena Creative Writing | 1380 | 1402 |
| LMArena Multi-Turn | 1406 | 1436 |
| EQ-Bench 4 | 1075 | — |

## FAQ

### Is Grok 4.3 better than Hy3?

Grok 4.3 and Hy3 score almost the same on the Noometry Index (43.8 vs 44.2), so choose on price, context window or the category you care about most.

### Which is cheaper, Grok 4.3 or Hy3?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.

### Is Grok 4.3 or Hy3 better for coding?

Hy3 scores higher on coding benchmarks: 46.8 versus 41.6 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.3 does, with 1M tokens against 262K.

### How many benchmarks do Grok 4.3 and Hy3 share?

19 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and Hy3 has 19.