# Hy4 preview vs Kimi K3

> Side-by-side benchmark comparison for Hy4 preview and Kimi K3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy4-preview-vs-kimi-k3
- Last updated: October 13, 2026

- Shared sourced benchmarks: 16
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K3 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Kimi K3 has the higher overall point estimate 69.44 to 60.86. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 54.5 for Hy4 preview and 69 for Kimi K3.
- The biggest single benchmark swing is ProgramBench in Coding, with scores of 17.5% and 77.8%.
- Hy4 preview is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Kimi K3 also has the larger context window at 1.05M.

## Model Snapshot

| Property | Hy4 preview | Kimi K3 |
|----------|----------|----------|
| Creator | Tencent | Moonshot AI |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | 60.86 | 69.44 |
| Benchmarks Covered | 30 | 49 |
| Pricing (input/output) | $0.00 / $0.00 | $3.00 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Hy4 preview public-lane score: 54.5 (Estimated · #37/123)
- Kimi K3 public-lane score: 69 (Supported · #8/123)

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | 88.3% | Kimi K3 |
| CyberGym | 78.4% | Coming soon | Coming soon |
| WideResearch | 83.9% | Coming soon | Coming soon |
| DRACO | 77.2% | Coming soon | Coming soon |
| MCP Atlas | 83.7% | 84.2% | Kimi K3 |
| Toolathlon-Verified | 74.1% | 73.2% | Hy4 preview |
| APEX-Agents | 37.1% | 37.6% | Kimi K3 |
| skillsBench | 62.9% | Coming soon | Coming soon |
| JobBench | 61.7% | 52.9% | Hy4 preview |
| Agents' Last Exam | 22.8% | Coming soon | Coming soon |
| AutomationBench | 32.1% | 30.8% | Hy4 preview |
| BankerToolBench | 78.6% | Coming soon | Coming soon |
| HLE w/ tools | 55.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 55.1% | 80.9% | Kimi K3 |
| CWE-bench v1 | 53.0% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 91.2% | Coming soon |
| DeepSearchQA | Coming soon | 95.0% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.8% | Coming soon |
| DECK-Bench | Coming soon | 73.5% | Coming soon |
| ApprenticeBench | Coming soon | 18% | Coming soon |

### Coding

- Winner: Kimi K3
- Hy4 preview public-lane score: 57.1 (Supported · #26/148)
- Kimi K3 public-lane score: 59.3 (Supported · #22/148)

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | Coming soon | Coming soon |
| SWE-bench Pro | 65.7% | Coming soon | Coming soon |
| SWE Multilingual | 82.9% | Coming soon | Coming soon |
| DeepSWE | 64.3% | 67.5% | Kimi K3 |
| NL2Repo | 58.9% | Coming soon | Coming soon |
| ProgramBench | 17.5% | 77.8% | Kimi K3 |
| PostTrain Bench | 35.6% | 36.6% | Kimi K3 |
| sweMarathon | 31.9% | 42% | Kimi K3 |
| CursorBench 3.2 | Coming soon | 60.8% | Coming soon |
| FrontierSWE | Coming soon | 81.2% | Coming soon |
| Kimi Code Bench v2 | Coming soon | 72.9% | Coming soon |
| MLS-Bench Lite | Coming soon | 48.3% | Coming soon |
| VulcanBench v3 | Coming soon | 73.7% | Coming soon |
| OpenHarmony Bench | Coming soon | 57.3% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.9% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 93.4% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 32.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 21.0 fixes | Coming soon |

### Reasoning

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Kimi K3 public-lane score: 70 (#22/29)

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 16.9% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 94.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 60.4% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)
- Kimi K3 public-lane score: 92.6 (#1/54)

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | 63.3% | Hy4 preview |
| MMMU-Pro | Coming soon | 81.6% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 83.4% | Coming soon |
| CharXiv w/o tools | Coming soon | 84.8% | Coming soon |
| CharXiv | Coming soon | 91.3% | Coming soon |
| MathVision | Coming soon | 94.3% | Coming soon |
| MathVision w/ Python | Coming soon | 97.8% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.7% | Coming soon |
| ZeroBench | Coming soon | 23.0% | Coming soon |
| ZeroBench w/ Python | Coming soon | 41.0% | Coming soon |
| WorldVQA ForceAnswer | Coming soon | 51.0% | Coming soon |
| OmniDocBench | Coming soon | 91.1% | Coming soon |
| PerceptionBench | Coming soon | 58.5% | Coming soon |

### Knowledge

- Winner: Directional only
- Hy4 preview public-lane score: 63.6 (Estimated · #39/180)
- Kimi K3 public-lane score: 68.1 (Supported · #21/180)

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.3% | 93.5% | Kimi K3 |
| GPQA-D | 92.3% | 93.5% | Kimi K3 |
| HLE | 55.4% | 56% | Kimi K3 |
| HLE w/o tools | 43.4% | 43.5% | Kimi K3 |
| GPQA Diamond (Vals) | Coming soon | 92.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 88.0% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Kimi K3 public-lane score: Coming soon

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 52.7% | Coming soon |

### Mathematics

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Kimi K3 public-lane score: Coming soon

| Benchmark | Hy4 preview | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Apex | 74.2% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Hy4 preview or Kimi K3?

Kimi K3 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Hy4 preview and Kimi K3?

The widest category gap is in agentic, where the averages are 54.5 for Hy4 preview and 69 for Kimi K3.

### How many benchmarks does Hy4 preview cover on BenchLM?

Hy4 preview currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K3 cover on BenchLM?

Kimi K3 currently has 49 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Hy4 preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy4-preview)
- [Kimi K3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-k3)
- [Hy4 preview vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-hy4-preview)
- [Kimi K3 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-kimi-k3)

## Explore More

- [Hy4 preview profile](/models/hy4-preview)
- [Kimi K3 profile](/models/kimi-k3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)