# GLM-5.1 vs GPT-5.4

> Side-by-side benchmark comparison for GLM-5.1 and GPT-5.4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-1-vs-gpt-5-4
- Last updated: September 23, 2026

- Shared sourced benchmarks: 13
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.6

## Quick Verdict

Pick GPT-5.4 if you want the stronger benchmark profile. GLM-5.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.4 leads overall 69.23 to 57.71.
- The clearest category separation is in knowledge, where the averages are 50.2 for GLM-5.1 and 66.5 for GPT-5.4.
- The biggest single benchmark swing is Vibe Code Bench in Coding, with scores of 31.46% and 67.42%.
- GLM-5.1 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.4 also has the larger context window at 1.05M.

## Model Snapshot

| Property | GLM-5.1 | GPT-5.4 |
|----------|----------|----------|
| Creator | Z.AI | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 203K | 1.05M |
| Overall Score | 57.71 | 69.23 |
| Benchmarks Covered | 26 | 38 |
| Pricing (input/output) | $1.40 / $4.40 | $2.50 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- GLM-5.1 public-lane score: 42.1 (Estimated · #43/105)
- GPT-5.4 public-lane score: 49.5 (Supported · #36/105)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 63.5% | 75.1% | GPT-5.4 |
| BrowseComp | 68% | 82.7% | GPT-5.4 |
| τ³-bench results | 70.6% | Coming soon | Coming soon |
| MCP Atlas | 71.8% | 70.6% | GLM-5.1 |
| CyberGym | 68.7% | 79.0% | GPT-5.4 |
| Claw-Eval | 62.3% | 60.3% | GLM-5.1 |
| Gert Labs | 60.11% | 64.89% | GPT-5.4 |
| ResearchClawBench | 18.2% | 15.3% | GLM-5.1 |
| Terminal-Bench 2.1 (Vals) | 56.9% | Coming soon | Coming soon |
| OSWorld-Verified | Coming soon | 75% | Coming soon |
| Toolathlon | Coming soon | 54.6% | Coming soon |
| τ²-bench results | Coming soon | 98.9% | Coming soon |
| DeepSearchQA | Coming soon | 73.6% | Coming soon |
| JobBench | Coming soon | 38.9% | Coming soon |
| ExploitGym | Coming soon | 6.0% | Coming soon |
| ApprenticeBench | Coming soon | 11% | Coming soon |

### Coding

- Winner: GLM-5.1
- GLM-5.1 public-lane score: 51.5 (Supported · #36/135)
- GPT-5.4 public-lane score: 51 (Supported · #38/135)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.4% | 57.7% | GLM-5.1 |
| NL2Repo | 42.7% | Coming soon | Coming soon |
| SWE-Rebench | 62.7% | Coming soon | Coming soon |
| Vibe Code Bench | 31.46% | 67.42% | GPT-5.4 |
| OpenHarmony Bench | 52.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 81.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 76.4% | Coming soon | Coming soon |
| LiveCodeBench Pro | Coming soon | 87.5% | Coming soon |
| React Native Evals | Coming soon | 85.3% | Coming soon |

### Reasoning

- Winner: Not comparable
- GLM-5.1 public-lane score: 71.7 (Unranked · 2 rankable rows)
- GPT-5.4 public-lane score: 57.2 (#15/18)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 74.0% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.2% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GLM-5.1 public-lane score: Coming soon
- GPT-5.4 public-lane score: 69.3 (#21/50)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 81.2% | Coming soon |
| OfficeQA Pro | Coming soon | 53.2% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 82.1% | Coming soon |
| CharXiv | Coming soon | 82.8% | Coming soon |
| ERQA | Coming soon | 65.4% | Coming soon |
| SimpleVQA | Coming soon | 61.1% | Coming soon |
| ScreenSpot Pro | Coming soon | 85.4% | Coming soon |
| ZeroBench | Coming soon | 41.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 77.1% | Coming soon |

### Knowledge

- Winner: GPT-5.4
- GLM-5.1 public-lane score: 50.2 (Supported · #54/160)
- GPT-5.4 public-lane score: 66.5 (Supported · #17/160)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 86.2% | 92.8% | GPT-5.4 |
| HLE | 52.3% | 52.1% | GLM-5.1 |
| GPQA Diamond (Vals) | 84.5% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.9% | Coming soon | Coming soon |
| GPQA | Coming soon | 92.8% | Coming soon |
| HLE w/o tools | Coming soon | 39.8% | Coming soon |
| HealthBench Hard | Coming soon | 40.1% | Coming soon |
| MedXpertQA (Text) | Coming soon | 59.6% | Coming soon |
| HealthBench Professional | Coming soon | 48.1% | Coming soon |

### Instruction Following

- Winner: Directional only
- GLM-5.1 public-lane score: 92.4 (#4/124)
- GPT-5.4 public-lane score: 89.2 (#19/124)

### Mathematics

- Winner: Not comparable
- GLM-5.1 public-lane score: 63.8 (#3/7)
- GPT-5.4 public-lane score: 64.4 (Unranked · 2 rankable rows)

| Benchmark | GLM-5.1 | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.3% | Coming soon | Coming soon |
| HMMT Nov 2025 | 94.0% | Coming soon | Coming soon |
| HMMT Feb 2026 | 82.6% | Coming soon | Coming soon |
| MMAnswerBench | 83.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 33.448% | 47.600% | GPT-5.4 |
| FrontierMath v2 (Tier 4) | 12.500% | 27.100% | GPT-5.4 |

## FAQ

### Which is better overall, GLM-5.1 or GPT-5.4?

GPT-5.4 is ahead overall on BenchLM right now.

### Where is the biggest gap between GLM-5.1 and GPT-5.4?

The widest category gap is in knowledge, where the averages are 50.2 for GLM-5.1 and 66.5 for GPT-5.4.

### How many benchmarks does GLM-5.1 cover on BenchLM?

GLM-5.1 currently has 26 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-5.4 cover on BenchLM?

GPT-5.4 currently has 38 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.1 vs GLM-5.3](/compare/glm-5-1-vs-glm-5-3)
- [GPT-5.4 vs GLM-5.3](/compare/glm-5-3-vs-gpt-5-4)
- [GLM-5.1 vs GLM-5.2](/compare/glm-5-1-vs-glm-5-2)
- [GPT-5.4 vs GLM-5.2](/compare/glm-5-2-vs-gpt-5-4)

## Explore More

- [GLM-5.1 profile](/models/glm-5-1)
- [GPT-5.4 profile](/models/gpt-5-4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)