# GLM-5.2 vs Grok 4.5

> Side-by-side benchmark comparison for GLM-5.2 and Grok 4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-2-vs-grok-4-5
- Last updated: October 7, 2026

- Shared sourced benchmarks: 11
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Grok 4.5 if you want the stronger benchmark profile. GLM-5.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.5 leads overall 63.97 to 61.56.
- The clearest category separation is in reasoning, where the averages are 76.1 for GLM-5.2 and 50.4 for Grok 4.5.
- The biggest single benchmark swing is LiveCodeBench (Vals) in Coding, with scores of 69.5% and 87.4%.
- GLM-5.2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GLM-5.2 also has the larger context window at 1M.

## Model Snapshot

| Property | GLM-5.2 | Grok 4.5 |
|----------|----------|----------|
| Creator | Z.AI | xAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 500K |
| Overall Score | 61.56 | 63.97 |
| Benchmarks Covered | 26 | 17 |
| Pricing (input/output) | $1.40 / $4.40 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Grok 4.5
- GLM-5.2 public-lane score: 56.4 (Supported · #33/122)
- Grok 4.5 public-lane score: 57.6 (Supported · #29/122)

| Benchmark | GLM-5.2 | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 4.6% | 15.7% | Grok 4.5 |
| Terminal-Bench 2.1 | 81.0% | 83.3% | Grok 4.5 |
| MCP Atlas | 76.8% | Coming soon | Coming soon |
| Toolathlon | 48.2% | Coming soon | Coming soon |
| ResearchClawBench | 20.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.8% | 67.8% | Tie |
| deepSwe | Coming soon | 53% | Coming soon |

### Coding

- Winner: Grok 4.5
- GLM-5.2 public-lane score: 55.3 (Supported · #31/146)
- Grok 4.5 public-lane score: 57.7 (Supported · #27/146)

| Benchmark | GLM-5.2 | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 62.1% | 64.7% | Grok 4.5 |
| NL2Repo | 48.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 81.0% | 83.3% | Grok 4.5 |
| ProgramBench | 63.7% | Coming soon | Coming soon |
| CursorBench 3.2 | 55.0% | 66.7% | Grok 4.5 |
| OpenHarmony Bench | 58.4% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 69.5% | 87.4% | Grok 4.5 |
| SWE-bench (Vals) | 82.8% | 86.6% | Grok 4.5 |
| PostTrainBench v1.1 | 31.7% | 23.4% | GLM-5.2 |
| SWE Multilingual | Coming soon | 78% | Coming soon |
| VulcanBench v3 | Coming soon | 89.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- GLM-5.2 public-lane score: 76.1 (Unranked · 2 rankable rows)
- Grok 4.5 public-lane score: 50.4 (#28/28)

| Benchmark | GLM-5.2 | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 20.9% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 52.6% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.3% | Coming soon |
| ARC-AGI-1 | Coming soon | 85.67% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GLM-5.2 public-lane score: Coming soon
- Grok 4.5 public-lane score: 79.5 (Unranked · 1 rankable row)

### Knowledge

- Winner: Grok 4.5
- GLM-5.2 public-lane score: 56.9 (Supported · #49/174)
- Grok 4.5 public-lane score: 67 (Supported · #19/174)

| Benchmark | GLM-5.2 | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.2% | Coming soon | Coming soon |
| GPQA-D | 91.2% | Coming soon | Coming soon |
| HLE | 54.7% | Coming soon | Coming soon |
| HLE w/o tools | 40.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 85.6% | 92.9% | Grok 4.5 |
| MMLU-Pro (Vals) | 86.7% | 89.2% | Grok 4.5 |

### Instruction Following

- Winner: Not comparable
- GLM-5.2 public-lane score: 88.5 (#22/125)
- Grok 4.5 public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GLM-5.2 public-lane score: 80.7 (Unranked · 4 rankable rows)
- Grok 4.5 public-lane score: Coming soon

| Benchmark | GLM-5.2 | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 99.2% | Coming soon | Coming soon |
| HMMT Nov 2025 | 94.4% | Coming soon | Coming soon |
| HMMT Feb 2026 | 92.5% | Coming soon | Coming soon |
| MMAnswerBench | 91.0% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GLM-5.2 or Grok 4.5?

Grok 4.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between GLM-5.2 and Grok 4.5?

The widest category gap is in reasoning, where the averages are 76.1 for GLM-5.2 and 50.4 for Grok 4.5.

### How many benchmarks does GLM-5.2 cover on BenchLM?

GLM-5.2 currently has 26 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.5 cover on BenchLM?

Grok 4.5 currently has 17 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.2 vs GLM-5.3](/compare/glm-5-2-vs-glm-5-3)
- [Grok 4.5 vs GLM-5.3](/compare/glm-5-3-vs-grok-4-5)
- [GLM-5.2 vs GLM-5.3-Flash](/compare/glm-5-2-vs-glm-5-3-flash)
- [Grok 4.5 vs GLM-5.3-Flash](/compare/glm-5-3-flash-vs-grok-4-5)

## Explore More

- [GLM-5.2 profile](/models/glm-5-2)
- [Grok 4.5 profile](/models/grok-4-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)