# Hy4 preview vs Inkling

> Hy4 preview is the stronger model overall, scoring 45.3 to 44.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-inkling
- Last updated: 2026-10-11
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Hy4 preview scores higher in 2 categories and Inkling in 1 category; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 31.3.
- The biggest single-benchmark swing is ProofBench: 75% for Hy4 preview and 0% for Inkling.
- Hy4 preview is cheaper at $0.83 / $2.50 per million input/output tokens, against $1.87 / $4.68 for Inkling.
- Hy4 preview accepts more context: 1.05M tokens versus 66K.

## Snapshot

| | Hy4 preview | Inkling |
|---|---|---|
| Provider | Tencent | Thinking Machines Lab |
| Noometry Index | 45.3 | 44.1 |
| Rank | 73 | 80 |
| Context | 1.05M | 66K |
| Input $/M | $0.83 | $1.87 |
| Output $/M | $2.50 | $4.68 |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- Inkling: 34.5 (#234)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| LMArena WebDev | 1632 | 1413 |
| FrontierCode | — | 14% |
| FrontierSWE | — | 4.1% |
| SciCode | — | 47% |
| WeirdML | — | 32.3% |
| LMArena Coding | — | 1464 |
| ALE-Bench | — | 946 |

## Agentic & Tool Use

- Hy4 preview: —
- Inkling: 29.6 (#85)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| APEX-Agents | — | 33.8% |
| τ²-bench Banking | — | 25% |

## Reasoning

- Hy4 preview: 31.9 (#79)
- Inkling: 40.4 (#56)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| ARC-AGI-2 | — | 36.5% |
| SimpleBench | — | 50% |
| NYT Connections (extended) | 68.2% | — |
| ARC-AGI-1 | — | 79.5% |
| CritPt | — | 5.4% |
| Chess Puzzles | — | 21% |
| LMArena Hard Prompts | — | 1451 |
| DTBench | — | 87.5% |
| LMCA | — | 37.6% |
| Epoch Capabilities Index | — | 148.54 |

## Math

- Hy4 preview: 55.7 (#42)
- Inkling: 31.3 (#225)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| ProofBench | 75% | 0% |
| FrontierMath (Tiers 1-3) | — | 33.3% |
| FrontierMath Tier 4 | — | 4.9% |
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| LMArena Math | — | 1479 |

## Knowledge

- Hy4 preview: —
- Inkling: 55.1 (#49)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| GPQA Diamond | — | 88.3% |
| SimpleQA Verified | — | 40.3% |
| LMArena Expert | — | 1465 |

## Multilingual

- Hy4 preview: —
- Inkling: 54.0 (#52)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| LMArena Non-English | — | 1434 |
| LMArena Chinese | — | 1490 |
| LMArena French | — | 1458 |
| LMArena German | — | 1446 |
| LMArena Japanese | — | 1429 |
| LMArena Korean | — | 1404 |
| LMArena Russian | — | 1429 |
| LMArena Spanish | — | 1448 |

## Instruction Following

- Hy4 preview: —
- Inkling: 75.1 (#71)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| LMArena Instruction Following | — | 1426 |

## Long Context

- Hy4 preview: —
- Inkling: 43.8 (#86)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| LMArena Longer Query | — | 1434 |

## Writing & Preference

- Hy4 preview: —
- Inkling: 65.2 (#51)

| Benchmark | Hy4 preview | Inkling |
|---|---|---|
| LMArena Text | — | 1441 |
| LMArena Creative Writing | — | 1387 |
| EQ-Bench Creative Writing | — | 1611 |
| EQ-Bench 4 | — | 1226 |
| LMArena Multi-Turn | — | 1436 |

## FAQ

### Is Hy4 preview better than Inkling?

Hy4 preview is the stronger model overall, scoring 45.3 to 44.1 on the Noometry Index.

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

Hy4 preview is cheaper. It lists at $0.83 per million input tokens and $2.50 per million output tokens; Inkling lists at $1.87 and $4.68.

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

Hy4 preview scores higher on coding benchmarks: 51.6 versus 34.5 in the Noometry coding category.

### Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 66K.

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

2 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Inkling has 41.