# Hy4 preview vs o1

> Hy4 preview is the stronger model overall, scoring 45.3 to 40.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-o1
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 55.7 to 36.1.
- Hy4 preview is cheaper at $0.75 / $2.25 per million input/output tokens, against $15 / $60 for o1.
- Hy4 preview accepts more context: 1.05M tokens versus 200K.
- Hy4 preview has downloadable open weights; the other is API-only.

## Snapshot

| | Hy4 preview | o1 |
|---|---|---|
| Provider | Tencent | OpenAI |
| Noometry Index | 45.3 | 40.9 |
| Rank | 73 | 143 |
| Context | 1.05M | 200K |
| Input $/M | $0.75 | $15 |
| Output $/M | $2.25 | $60 |
| Weights | Open | Proprietary |

## Coding

- Hy4 preview: 51.6 (#38)
- o1: 46.1 (#70)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| Aider Polyglot | — | 61.7% |
| LMArena WebDev | 1632 | — |
| WeirdML | — | 47.6% |
| LiveBench Coding | — | 69.7% |
| LMArena Coding | — | 1367 |
| CadEval | — | 56% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 80.2% |

## Agentic & Tool Use

- Hy4 preview: —
- o1: 24.6 (#117)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| Cybench | — | 10% |
| METR Time Horizons | — | 51.1% |

## Reasoning

- Hy4 preview: 31.9 (#79)
- o1: 27.9 (#111)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| SimpleBench | — | 41.7% |
| NYT Connections (extended) | 68.2% | — |
| ARC-AGI-1 | — | 30.7% |
| Chess Puzzles | — | 15% |
| EnigmaEval | — | 5.7% |
| LiveBench Reasoning | — | 91.6% |
| LMArena Hard Prompts | — | 1371 |
| DTBench | — | 74.7% |
| LiveBench Data Analysis | — | 65.5% |
| LMCA | — | 22.3% |
| Epoch Capabilities Index | — | 141.91 |
| LiveBench | — | 75.7% |

## Math

- Hy4 preview: 55.7 (#42)
- o1: 36.1 (#175)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 14.7% |
| OTIS Mock AIME 2024-2025 | — | 73.3% |
| ProofBench | 75% | — |
| LiveBench Math | — | 80.3% |
| LMArena Math | — | 1388 |
| MATH Level 5 | — | 94.7% |
| FrontierMath (Feb 2025 set) | — | 9.3% |

## Knowledge

- Hy4 preview: —
- o1: 41.5 (#110)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| GPQA Diamond | — | 76.8% |
| Humanity's Last Exam | — | 8% |
| SimpleQA Verified | — | 41.1% |
| Confabulations | — | 11.7% |
| LMArena Expert | — | 1361 |

## Multimodal

- Hy4 preview: —
- o1: 34.2 (#93)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| LMArena Vision | — | 1168 |
| GeoBench | — | 80% |
| VPCT | — | 37% |
| SpatialViz-Bench | — | 41.4% |

## Multilingual

- Hy4 preview: —
- o1: 48.6 (#142)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| LMArena Non-English | — | 1358 |
| LMArena Chinese | — | 1394 |
| LMArena French | — | 1344 |
| LMArena German | — | 1337 |
| LMArena Japanese | — | 1346 |
| LMArena Korean | — | 1396 |
| LMArena Russian | — | 1356 |
| LMArena Spanish | — | 1345 |

## Instruction Following

- Hy4 preview: —
- o1: 74.8 (#86)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| LiveBench Instruction Following | — | 81.5% |
| LMArena Instruction Following | — | 1367 |

## Long Context

- Hy4 preview: —
- o1: 50.3 (#9)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| Fiction.LiveBench | — | 83.3% |
| LMArena Longer Query | — | 1378 |

## Writing & Preference

- Hy4 preview: —
- o1: 55.6 (#144)

| Benchmark | Hy4 preview | o1 |
|---|---|---|
| LMArena Text | — | 1366 |
| LMArena Creative Writing | — | 1348 |
| Short-Story Creative Writing | — | 70.2% |
| LMArena Multi-Turn | — | 1369 |
| LiveBench Language | — | 65.4% |

## FAQ

### Is Hy4 preview better than o1?

Hy4 preview is the stronger model overall, scoring 45.3 to 40.9 on the Noometry Index.

### Which is cheaper, Hy4 preview or o1?

Hy4 preview is cheaper. It lists at $0.75 per million input tokens and $2.25 per million output tokens; o1 lists at $15 and $60.

### Is Hy4 preview or o1 better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 46.1 in the Noometry coding category.

### Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 200K.

### How many benchmarks do Hy4 preview and o1 share?

0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and o1 has 52.