# DeepSeek V4.1 Flash vs GLM-5.3

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and GLM-5.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-glm-5-3
- Last updated: September 10, 2026

- Shared sourced benchmarks: 12
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick GLM-5.3 if you want the stronger benchmark profile. DeepSeek V4.1 Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GLM-5.3 leads overall 68.35 to 55.
- The biggest single benchmark swing is NL2Repo in Coding, with scores of 65.4% and 58%.
- GLM-5.3 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | GLM-5.3 |
|----------|----------|----------|
| Creator | DeepSeek | Z.AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | 68.35 |
| Benchmarks Covered | 21 | 24 |
| Pricing (input/output) | $0.30 / $1.20 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: 68.4 (Supported · #8/152)

| Benchmark | DeepSeek V4.1 Flash | GLM-5.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 88.2% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | 28.3% | DeepSeek V4.1 Flash |
| Terminal-Bench 4.0 | 31.20% | Coming soon | Coming soon |
| CyberGym | 88.1% | 84.5% | DeepSeek V4.1 Flash |
| ExploitGym | 15.3% | 15.0% | DeepSeek V4.1 Flash |
| HLE w/ tools | 63.9% | 62.5% | DeepSeek V4.1 Flash |
| AutomationBench | 54.8% | 48.2% | DeepSeek V4.1 Flash |
| Agents' Last Exam | 31.8% | 28.5% | DeepSeek V4.1 Flash |
| Toolathlon-Verified | Coming soon | 73.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 71.5% | Coming soon |

### Coding

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: 61.5 (Supported · #18/151)

| Benchmark | DeepSeek V4.1 Flash | GLM-5.3 | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 88.2% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | 28.3% | DeepSeek V4.1 Flash |
| DeepSWE | 74.2% | 66.9% | DeepSeek V4.1 Flash |
| ProgramBench | 20.3% | 19.0% | DeepSeek V4.1 Flash |
| NL2Repo | 65.4% | 58% | DeepSeek V4.1 Flash |
| FrontierSWE | Coming soon | 78.1% | Coming soon |
| sweMarathon | Coming soon | 42.5% | Coming soon |
| PostTrain Bench | Coming soon | 39.8% | Coming soon |
| VulcanBench v3 | Coming soon | 78.3% | Coming soon |
| OpenHarmony Bench | Coming soon | 60.8% | Coming soon |
| FrontierSWE v2 | Coming soon | 30.2% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 80.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 95.4% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | GLM-5.3 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (tools) | 78.9% | Coming soon | Coming soon |
| BabyVision w/ Python | 89.6% | Coming soon | Coming soon |
| ZeroBench w/ Python | 49.0% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: 75.8 (#8/18)

### Knowledge

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: 61.9 (Supported · #28/182)

| Benchmark | DeepSeek V4.1 Flash | GLM-5.3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | Coming soon | Coming soon |
| GPQA-D | 90.9% | Coming soon | Coming soon |
| HLE | 36.8% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 88.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 86.8% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- GLM-5.3 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | GLM-5.3 | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or GLM-5.3?

GLM-5.3 is ahead overall on BenchLM right now.

### How many benchmarks does DeepSeek V4.1 Flash cover on BenchLM?

DeepSeek V4.1 Flash currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does GLM-5.3 cover on BenchLM?

GLM-5.3 currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4.1 Flash vs GLM-5.2](/compare/deepseek-v4-1-flash-vs-glm-5-2)
- [GLM-5.3 vs GLM-5.2](/compare/glm-5-2-vs-glm-5-3)
- [DeepSeek V4.1 Flash vs GLM-5.3-Flash](/compare/deepseek-v4-1-flash-vs-glm-5-3-flash)
- [GLM-5.3 vs GLM-5.3-Flash](/compare/glm-5-3-vs-glm-5-3-flash)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [GLM-5.3 profile](/models/glm-5-3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)