# DeepSeek V4 Pro vs GLM-5.1

> DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 47.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-pro-vs-glm-5-1
- Last updated: 2026-10-10
- Shared benchmarks: 35

## Summary

- They share 35 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 6 categories and GLM-5.1 in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4 Pro leads 56.5 to 39.1.
- The biggest single-benchmark swing is Chess Puzzles: 47% for DeepSeek V4 Pro and 19% for GLM-5.1.
- DeepSeek V4 Pro is cheaper at $0.66 / $1.98 per million input/output tokens, against $1.40 / $4.40 for GLM-5.1.
- DeepSeek V4 Pro accepts more context: 1M tokens versus 200K.

## Snapshot

| | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| Provider | DeepSeek | Z.ai (Zhipu) |
| Noometry Index | 54.3 | 47.8 |
| Rank | 31 | 59 |
| Context | 1M | 200K |
| Input $/M | $0.66 | $1.40 |
| Output $/M | $1.98 | $4.40 |
| Weights | Open | Open |

## Coding

- DeepSeek V4 Pro: 52.4 (#34)
- GLM-5.1: 48.7 (#55)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| SWE-bench Verified | 77.6% | 74.2% |
| LMArena WebDev | 1582 | 1508 |
| SciCode | 51% | 43.8% |
| WeirdML | 66.2% | 57.1% |
| LMArena Coding | 1470 | 1485 |
| ALE-Bench | 1,403 | 887.1 |
| FrontierCode | 28.6% | — |

## Agentic & Tool Use

- DeepSeek V4 Pro: 32.8 (#58)
- GLM-5.1: 24.9 (#113)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| APEX-Agents | 47.3% | 40.9% |
| Vending-Bench 2 | 3,285 | 5,634 |
| ExploitBench | — | 18.1% |
| GBAEval | — | 0% |

## Reasoning

- DeepSeek V4 Pro: 56.5 (#24)
- GLM-5.1: 39.1 (#60)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| NYT Connections (extended) | 91.3% | 77.7% |
| CritPt | 18% | 4.6% |
| Chess Puzzles | 47% | 19% |
| LMArena Hard Prompts | 1461 | 1472 |
| Epoch Capabilities Index | 155.31 | 149.84 |
| ARC-AGI-2 | 61.3% | — |
| SimpleBench | — | 55.1% |
| Kagi LLM Benchmark | 53.5% | — |
| ARC-AGI-1 | 90.5% | — |
| Thematic Generalization | — | 69.8% |
| Mystery Game Puzzles | 43% | — |
| DTBench | 93.9% | — |
| LMCA | 45.5% | — |
| Surface Evolver Bench | 40% | — |
| ForecastBench | 56.1 | — |

## Math

- DeepSeek V4 Pro: 64.8 (#30)
- GLM-5.1: 49.7 (#60)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 64.6% | 36.8% |
| MathArena Final-Answer Competitions | 76.6% | 67.1% |
| OTIS Mock AIME 2024-2025 | 98.6% | 93.3% |
| ProofBench | 50% | 22.2% |
| LMArena Math | 1455 | 1473 |
| FrontierMath Tier 4 | 26.8% | — |
| FrontierMath (Feb 2025 set) | — | 33.4% |
| FrontierMath Tier 4 (v1) | — | 12.5% |

## Knowledge

- DeepSeek V4 Pro: 59.5 (#31)
- GLM-5.1: 54.9 (#50)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| GPQA Diamond | 91.7% | 89.9% |
| SimpleQA Verified | 52.9% | 34% |
| LMArena Expert | 1464 | 1476 |
| Vectara Hallucination Rate | 8.6% | — |

## Multilingual

- DeepSeek V4 Pro: 54.4 (#45)
- GLM-5.1: 55.0 (#36)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| LMArena Non-English | 1439 | 1447 |
| LMArena Chinese | 1486 | 1515 |
| LMArena French | 1472 | 1474 |
| LMArena German | 1458 | 1465 |
| LMArena Japanese | 1445 | 1434 |
| LMArena Korean | 1447 | 1418 |
| LMArena Russian | 1453 | 1454 |
| LMArena Spanish | 1458 | 1469 |

## Instruction Following

- DeepSeek V4 Pro: 76.1 (#47)
- GLM-5.1: 76.3 (#42)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| LMArena Instruction Following | 1448 | 1451 |

## Long Context

- DeepSeek V4 Pro: 45.0 (#51)
- GLM-5.1: 44.9 (#53)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| LMArena Longer Query | 1458 | 1466 |
| CL-bench Life | 13.5% | — |

## Writing & Preference

- DeepSeek V4 Pro: 65.5 (#46)
- GLM-5.1: 66.9 (#31)

| Benchmark | DeepSeek V4 Pro | GLM-5.1 |
|---|---|---|
| LMArena Text | 1451 | 1461 |
| LMArena Creative Writing | 1446 | 1453 |
| EQ-Bench Creative Writing | 1553 | 1592 |
| LMArena Multi-Turn | 1467 | 1472 |
| EQ-Bench 4 | 1166 | — |

## FAQ

### Is DeepSeek V4 Pro better than GLM-5.1?

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 47.8 on the Noometry Index.

### Which is cheaper, DeepSeek V4 Pro or GLM-5.1?

DeepSeek V4 Pro is cheaper. It lists at $0.66 per million input tokens and $1.98 per million output tokens; GLM-5.1 lists at $1.40 and $4.40.

### Is DeepSeek V4 Pro or GLM-5.1 better for coding?

DeepSeek V4 Pro scores higher on coding benchmarks: 52.4 versus 48.7 in the Noometry coding category.

### Which has the bigger context window?

DeepSeek V4 Pro does, with 1M tokens against 200K.

### How many benchmarks do DeepSeek V4 Pro and GLM-5.1 share?

35 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and GLM-5.1 has 41.