# DeepSeek V4 Flash vs GLM-4.6

> DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 41.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-flash-vs-glm-4-6
- Last updated: 2026-10-11
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. DeepSeek V4 Flash scores higher in 7 categories and GLM-4.6 in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4 Flash leads 53.7 to 23.7.
- The biggest single-benchmark swing is CritPt: 16.6% for DeepSeek V4 Flash and 1.1% for GLM-4.6.
- DeepSeek V4 Flash is cheaper at $0.15 / $0.60 per million input/output tokens, against $0.60 / $2.20 for GLM-4.6.
- DeepSeek V4 Flash accepts more context: 1M tokens versus 205K.

## Snapshot

| | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| Provider | DeepSeek | Z.ai (Zhipu) |
| Noometry Index | 53.6 | 41.4 |
| Rank | 35 | 135 |
| Context | 1M | 205K |
| Input $/M | $0.15 | $0.60 |
| Output $/M | $0.60 | $2.20 |
| Weights | Open | Open |

## Coding

- DeepSeek V4 Flash: 47.9 (#59)
- GLM-4.6: 40.1 (#148)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena WebDev | 1582 | 1340 |
| SciCode | 49.9% | 38.4% |
| LMArena Coding | 1457 | 1449 |
| ALE-Bench | 1,306 | 340.82 |
| FrontierCode | 18.8% | — |
| SWE-bench Verified (bash only) | — | 55.4% |
| WeirdML | 63% | — |

## Agentic & Tool Use

- DeepSeek V4 Flash: —
- GLM-4.6: 32.3 (#66)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| Terminal-Bench | — | 24.5% |
| Berkeley Function Calling Leaderboard | — | 72.4% |

## Reasoning

- DeepSeek V4 Flash: 53.7 (#30)
- GLM-4.6: 23.7 (#172)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| Kagi LLM Benchmark | 52.2% | 47.4% |
| CritPt | 16.6% | 1.1% |
| LMArena Hard Prompts | 1444 | 1440 |
| ARC-AGI-2 | 61.4% | — |
| SimpleBench | 61.1% | — |
| NYT Connections (extended) | 89.6% | — |
| ARC-AGI-1 | 89% | — |
| Chess Puzzles | 33% | — |
| Mystery Game Puzzles | 34% | — |
| DTBench | 90.9% | — |
| LMCA | 41.7% | — |
| Epoch Capabilities Index | 154.49 | — |

## Math

- DeepSeek V4 Flash: 60.3 (#37)
- GLM-4.6: 39.1 (#111)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Math | 1427 | 1432 |
| FrontierMath (Tiers 1-3) | 57.5% | — |
| FrontierMath Tier 4 | 24.4% | — |
| MathArena Final-Answer Competitions | 76.5% | — |
| OTIS Mock AIME 2024-2025 | 94.4% | — |
| ProofBench | 56% | — |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 2.1% |

## Knowledge

- DeepSeek V4 Flash: 55.4 (#48)
- GLM-4.6: 40.2 (#124)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Expert | 1441 | 1431 |
| GPQA Diamond | 91% | — |
| SimpleQA Verified | 33.6% | — |
| Vectara Hallucination Rate | — | 9.5% |

## Multilingual

- DeepSeek V4 Flash: 53.0 (#72)
- GLM-4.6: 53.5 (#66)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Non-English | 1420 | 1426 |
| LMArena Chinese | 1468 | 1499 |
| LMArena French | 1439 | 1459 |
| LMArena German | 1418 | 1447 |
| LMArena Japanese | 1406 | 1393 |
| LMArena Korean | 1384 | 1400 |
| LMArena Russian | 1428 | 1419 |
| LMArena Spanish | 1436 | 1436 |

## Instruction Following

- DeepSeek V4 Flash: 74.9 (#81)
- GLM-4.6: 74.3 (#98)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Instruction Following | 1421 | 1410 |

## Long Context

- DeepSeek V4 Flash: 43.8 (#85)
- GLM-4.6: 43.4 (#94)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Longer Query | 1434 | 1422 |

## Writing & Preference

- DeepSeek V4 Flash: 63.8 (#61)
- GLM-4.6: 61.1 (#90)

| Benchmark | DeepSeek V4 Flash | GLM-4.6 |
|---|---|---|
| LMArena Text | 1432 | 1440 |
| LMArena Creative Writing | 1403 | 1411 |
| EQ-Bench Creative Writing | 1559 | 1411 |
| LMArena Multi-Turn | 1449 | 1427 |

## FAQ

### Is DeepSeek V4 Flash better than GLM-4.6?

DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 41.4 on the Noometry Index.

### Which is cheaper, DeepSeek V4 Flash or GLM-4.6?

DeepSeek V4 Flash is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; GLM-4.6 lists at $0.60 and $2.20.

### Is DeepSeek V4 Flash or GLM-4.6 better for coding?

DeepSeek V4 Flash scores higher on coding benchmarks: 47.9 versus 40.1 in the Noometry coding category.

### Which has the bigger context window?

DeepSeek V4 Flash does, with 1M tokens against 205K.

### How many benchmarks do DeepSeek V4 Flash and GLM-4.6 share?

23 benchmarks have published results for both models. DeepSeek V4 Flash has 41 scored results on Noometry and GLM-4.6 has 29.