# Grok 4.5 vs Hy4

> Side-by-side benchmark comparison for Grok 4.5 and Hy4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-5-vs-hy4
- Last updated: November 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Grok 4.5 and Hy4.

## Summary

- Grok 4.5 and Hy4 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Grok 4.5 | Hy4 |
|----------|----------|----------|
| Creator | xAI | Tencent |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 500K | 1M |
| Independent public score (not head-to-head) | 62.92 | null |
| Benchmarks Covered | 19 | 15 |
| Pricing (input/output) | $2.00 / $6.00 | $0.834 / $2.501 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 61.3 (Supported · #23/135)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 15.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 83.3% | Coming soon | Coming soon |
| deepSwe | 53% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.8% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 44.40% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 19.8% | Coming soon |
| HLE w/ tools | Coming soon | 59.1% | Coming soon |
| Agents' Last Exam | Coming soon | 41.0% | Coming soon |
| APEX-Agents | Coming soon | 75.2% | Coming soon |
| AutomationBench | Coming soon | 56.2% | Coming soon |
| OSWorld 2.1 | Coming soon | 78.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 55.5 (Supported · #28/156)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 64.7% | Coming soon | Coming soon |
| SWE Multilingual | 78% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 83.3% | Coming soon | Coming soon |
| CursorBench 3.2 | 66.7% | Coming soon | Coming soon |
| VulcanBench v3 | 89.9% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 86.6% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 23.4% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 74.9% | Coming soon |
| sweMarathon | Coming soon | 43.8% | Coming soon |
| ProgramBench | Coming soon | 30.0% | Coming soon |
| FrontierCode 2.0 | Coming soon | 31.0% | Coming soon |
| PostTrainBench v1.2 | Coming soon | 35.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 54.1 (#26/26)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.6% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.3% | Coming soon | Coming soon |
| ARC-AGI-1 | 85.67% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 83.2 (Unranked · 1 rankable row)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 78.6% | Coming soon |
| ZeroBench w/ Python | Coming soon | 55.4% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 66.4 (Supported · #26/179)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 92.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.2% | Coming soon | Coming soon |
| HLE | Coming soon | 59.1% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Grok 4.5 public-lane score: 62.9 (Unranked · 2 rankable rows)
- Hy4 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 57.193% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 24.390% | Coming soon | Coming soon |

## FAQ

### Can I compare Grok 4.5 and Hy4 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Grok 4.5 vs Hy4 preview](/compare/grok-4-5-vs-hy4-preview)
- [Hy4 vs Hy4 preview](/compare/hy4-vs-hy4-preview)
- [Grok 4.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-grok-4-5)
- [Hy4 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-hy4)

## Explore More

- [Grok 4.5 profile](/models/grok-4-5)
- [Hy4 profile](/models/hy4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)