# DeepSeek V4 Flash vs Hy3

> DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 44.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-flash-vs-hy3
- Last updated: 2026-10-11
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. DeepSeek V4 Flash scores higher in 5 categories and Hy3 in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4 Flash leads 53.7 to 26.1.
- The biggest single-benchmark swing is NYT Connections (extended): 89.6% for DeepSeek V4 Flash and 41.2% for Hy3.
- Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $0.15 / $0.60 for DeepSeek V4 Flash.
- DeepSeek V4 Flash accepts more context: 1M tokens versus 262K.

## Snapshot

| | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| Provider | DeepSeek | Tencent |
| Noometry Index | 53.6 | 44.2 |
| Rank | 35 | 79 |
| Context | 1M | 262K |
| Input $/M | $0.15 | $0.13 |
| Output $/M | $0.60 | $0.53 |
| Weights | Open | Open |

## Coding

- DeepSeek V4 Flash: 47.9 (#59)
- Hy3: 46.8 (#63)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena WebDev | 1582 | 1508 |
| LMArena Coding | 1457 | 1464 |
| FrontierCode | 18.8% | — |
| SciCode | 49.9% | — |
| WeirdML | 63% | — |
| ALE-Bench | 1,306 | — |

## Reasoning

- DeepSeek V4 Flash: 53.7 (#30)
- Hy3: 26.1 (#136)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| NYT Connections (extended) | 89.6% | 41.2% |
| LMArena Hard Prompts | 1444 | 1447 |
| ARC-AGI-2 | 61.4% | — |
| SimpleBench | 61.1% | — |
| Kagi LLM Benchmark | 52.2% | — |
| ARC-AGI-1 | 89% | — |
| CritPt | 16.6% | — |
| Chess Puzzles | 33% | — |
| Mystery Game Puzzles | 34% | — |
| DTBench | 90.9% | — |
| LMCA | 41.7% | — |
| Epoch Capabilities Index | 154.49 | — |

## Math

- DeepSeek V4 Flash: 60.3 (#37)
- Hy3: 40.1 (#93)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Math | 1427 | 1475 |
| FrontierMath (Tiers 1-3) | 57.5% | — |
| FrontierMath Tier 4 | 24.4% | — |
| MathArena Final-Answer Competitions | 76.5% | — |
| OTIS Mock AIME 2024-2025 | 94.4% | — |
| ProofBench | 56% | — |

## Knowledge

- DeepSeek V4 Flash: 55.4 (#48)
- Hy3: 40.8 (#114)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Expert | 1441 | 1460 |
| GPQA Diamond | 91% | — |
| SimpleQA Verified | 33.6% | — |

## Multilingual

- DeepSeek V4 Flash: 53.0 (#72)
- Hy3: 53.5 (#65)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Non-English | 1420 | 1426 |
| LMArena Chinese | 1468 | 1493 |
| LMArena French | 1439 | 1461 |
| LMArena German | 1418 | 1439 |
| LMArena Japanese | 1406 | 1392 |
| LMArena Korean | 1384 | 1395 |
| LMArena Russian | 1428 | 1432 |
| LMArena Spanish | 1436 | 1456 |

## Instruction Following

- DeepSeek V4 Flash: 74.9 (#81)
- Hy3: 75.1 (#70)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Instruction Following | 1421 | 1426 |

## Long Context

- DeepSeek V4 Flash: 43.8 (#85)
- Hy3: 44.1 (#75)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Longer Query | 1434 | 1442 |

## Writing & Preference

- DeepSeek V4 Flash: 63.8 (#61)
- Hy3: 62.2 (#81)

| Benchmark | DeepSeek V4 Flash | Hy3 |
|---|---|---|
| LMArena Text | 1432 | 1439 |
| LMArena Creative Writing | 1403 | 1402 |
| LMArena Multi-Turn | 1449 | 1436 |
| EQ-Bench Creative Writing | 1559 | — |

## FAQ

### Is DeepSeek V4 Flash better than Hy3?

DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 44.2 on the Noometry Index.

### Which is cheaper, DeepSeek V4 Flash or Hy3?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; DeepSeek V4 Flash lists at $0.15 and $0.60.

### Is DeepSeek V4 Flash or Hy3 better for coding?

DeepSeek V4 Flash scores higher on coding benchmarks: 47.9 versus 46.8 in the Noometry coding category.

### Which has the bigger context window?

DeepSeek V4 Flash does, with 1M tokens against 262K.

### How many benchmarks do DeepSeek V4 Flash and Hy3 share?

19 benchmarks have published results for both models. DeepSeek V4 Flash has 41 scored results on Noometry and Hy3 has 19.