# GLM-5.3-Flash vs Nemotron 3 Ultra

> Side-by-side benchmark comparison for GLM-5.3-Flash and Nemotron 3 Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-3-flash-vs-nemotron-3-ultra
- Last updated: October 10, 2026

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

## Quick Verdict

GLM-5.3-Flash leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- GLM-5.3-Flash has the higher overall point estimate 57.36 to 47.16. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 55.7 for GLM-5.3-Flash and 27 for Nemotron 3 Ultra.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 84.3% and 56.4%.

## Model Snapshot

| Property | GLM-5.3-Flash | Nemotron 3 Ultra |
|----------|----------|----------|
| Creator | Z.AI | NVIDIA |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 57.36 | 47.16 |
| Benchmarks Covered | 21 | 24 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: GLM-5.3-Flash
- GLM-5.3-Flash public-lane score: 55.7 (Supported · #34/123)
- Nemotron 3 Ultra public-lane score: 27 (Supported · #95/123)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 84.3% | 56.4% | GLM-5.3-Flash |
| Toolathlon-Verified | 78.4% | Coming soon | Coming soon |
| AutomationBench | 48.8% | Coming soon | Coming soon |
| Agents' Last Exam | 26.3% | Coming soon | Coming soon |
| HLE w/ tools | 55.3% | 37.4% | GLM-5.3-Flash |
| Terminal-Bench 2.1 (Vals) | 62.9% | 50.9% | GLM-5.3-Flash |
| PinchBench | Coming soon | 90.0% | Coming soon |
| BrowseComp | Coming soon | 44.4% | Coming soon |
| τ³-bench results | Coming soon | 70.9% | Coming soon |

### Coding

- Winner: GLM-5.3-Flash
- GLM-5.3-Flash public-lane score: 49.3 (Supported · #42/146)
- Nemotron 3 Ultra public-lane score: 22.7 (Supported · #112/146)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 84.3% | 56.4% | GLM-5.3-Flash |
| DeepSWE | 63.4% | Coming soon | Coming soon |
| NL2Repo | 56.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 80.5% | 86.0% | Nemotron 3 Ultra |
| SWE-bench (Vals) | 92.0% | 69.0% | GLM-5.3-Flash |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 18.1% | Coming soon | Coming soon |
| Bug Hunt Bench | 17.7 fixes | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 71.9% | Coming soon |
| SWE Multilingual | Coming soon | 67.7% | Coming soon |
| LiveCodeBench v6 | Coming soon | 89.0% | Coming soon |
| SciCode | Coming soon | 44.6% | Coming soon |

### Reasoning

- Winner: Directional only
- GLM-5.3-Flash public-lane score: 81.1 (#11/28)
- Nemotron 3 Ultra public-lane score: 70.3 (#19/28)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 3.1% | Coming soon |
| LongBench v2 | Coming soon | 61.9% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GLM-5.3-Flash public-lane score: 84 (#14/54)
- Nemotron 3 Ultra public-lane score: Coming soon

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 62.4% | Coming soon | Coming soon |
| CharXiv | 89.4% | Coming soon | Coming soon |
| Chartography (tools) | 78.0% | Coming soon | Coming soon |
| BabyVision | 53.4% | Coming soon | Coming soon |
| MMVU | 80.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- GLM-5.3-Flash public-lane score: 60.5 (Supported · #43/177)
- Nemotron 3 Ultra public-lane score: 50.4 (Estimated · #73/177)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 86.4% | 86.1% | GLM-5.3-Flash |
| MMLU-Pro (Vals) | 86.1% | 85.8% | GLM-5.3-Flash |
| GPQA | Coming soon | 87% | Coming soon |
| GPQA-D | Coming soon | 87.0% | Coming soon |
| HLE | Coming soon | 26.7% | Coming soon |
| HLE w/o tools | Coming soon | 26.7% | Coming soon |
| MMLU-Pro | Coming soon | 86.8% | Coming soon |

### Multilingual

- Winner: Not comparable
- GLM-5.3-Flash public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 89.2 (#7/17)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 83% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GLM-5.3-Flash public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 92.1 (#20/127)

| Benchmark | GLM-5.3-Flash | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.7% | Coming soon |

## FAQ

### Which is better overall, GLM-5.3-Flash or Nemotron 3 Ultra?

GLM-5.3-Flash has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between GLM-5.3-Flash and Nemotron 3 Ultra?

The widest category gap is in agentic, where the averages are 55.7 for GLM-5.3-Flash and 27 for Nemotron 3 Ultra.

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

GLM-5.3-Flash currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does Nemotron 3 Ultra cover on BenchLM?

Nemotron 3 Ultra currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.3-Flash vs GLM-5.3](/compare/glm-5-3-vs-glm-5-3-flash)
- [Nemotron 3 Ultra vs GLM-5.3](/compare/glm-5-3-vs-nemotron-3-ultra)
- [GLM-5.3-Flash vs GLM-5.2](/compare/glm-5-2-vs-glm-5-3-flash)
- [Nemotron 3 Ultra vs GLM-5.2](/compare/glm-5-2-vs-nemotron-3-ultra)

## Explore More

- [GLM-5.3-Flash profile](/models/glm-5-3-flash)
- [Nemotron 3 Ultra profile](/models/nemotron-3-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)