# DeepSeek V4 Pro vs Grok 4.20 Multi-Agent

> DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 46.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-pro-vs-grok-4-20-multi-agent
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 7 categories and Grok 4.20 Multi-Agent in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where DeepSeek V4 Pro leads 64.8 to 39.4.
- DeepSeek V4 Pro is cheaper at $0.66 / $1.98 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
- DeepSeek V4 Pro has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | DeepSeek | xAI |
| Noometry Index | 54.3 | 46.2 |
| Rank | 31 | 65 |
| Context | 1M | 1M |
| Input $/M | $0.66 | $1.25 |
| Output $/M | $1.98 | $2.50 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek V4 Pro: 52.4 (#34)
- Grok 4.20 Multi-Agent: 43.0 (#92)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1470 | 1457 |
| SWE-bench Verified | 77.6% | — |
| FrontierCode | 28.6% | — |
| LMArena WebDev | 1582 | — |
| SciCode | 51% | — |
| WeirdML | 66.2% | — |
| ALE-Bench | 1,403 | — |

## Agentic & Tool Use

- DeepSeek V4 Pro: 32.8 (#58)
- Grok 4.20 Multi-Agent: —

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| APEX-Agents | 47.3% | — |
| LMArena Search | — | 1204 |
| Vending-Bench 2 | 3,285 | — |

## Reasoning

- DeepSeek V4 Pro: 56.5 (#24)
- Grok 4.20 Multi-Agent: 43.9 (#48)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| NYT Connections (extended) | 91.3% | 89.6% |
| LMArena Hard Prompts | 1461 | 1448 |
| ARC-AGI-2 | 61.3% | — |
| Kagi LLM Benchmark | 53.5% | — |
| ARC-AGI-1 | 90.5% | — |
| CritPt | 18% | — |
| Chess Puzzles | 47% | — |
| Mystery Game Puzzles | 43% | — |
| DTBench | 93.9% | — |
| LMCA | 45.5% | — |
| Surface Evolver Bench | 40% | — |
| Epoch Capabilities Index | 155.31 | — |
| ForecastBench | 56.1 | — |

## Math

- DeepSeek V4 Pro: 64.8 (#30)
- Grok 4.20 Multi-Agent: 39.4 (#104)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1455 | 1442 |
| FrontierMath (Tiers 1-3) | 64.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.6% | — |
| OTIS Mock AIME 2024-2025 | 98.6% | — |
| ProofBench | 50% | — |

## Knowledge

- DeepSeek V4 Pro: 59.5 (#31)
- Grok 4.20 Multi-Agent: 40.4 (#119)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1464 | 1445 |
| GPQA Diamond | 91.7% | — |
| SimpleQA Verified | 52.9% | — |
| Vectara Hallucination Rate | 8.6% | — |

## Multimodal

- DeepSeek V4 Pro: —
- Grok 4.20 Multi-Agent: 40.5 (#48)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | — | 1259 |

## Multilingual

- DeepSeek V4 Pro: 54.4 (#45)
- Grok 4.20 Multi-Agent: 54.4 (#43)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1439 | 1440 |
| LMArena Chinese | 1486 | 1475 |
| LMArena French | 1472 | 1466 |
| LMArena German | 1458 | 1456 |
| LMArena Japanese | 1445 | 1405 |
| LMArena Korean | 1447 | 1416 |
| LMArena Russian | 1453 | 1457 |
| LMArena Spanish | 1458 | 1447 |

## Instruction Following

- DeepSeek V4 Pro: 76.1 (#47)
- Grok 4.20 Multi-Agent: 74.8 (#84)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1448 | 1420 |

## Long Context

- DeepSeek V4 Pro: 45.0 (#51)
- Grok 4.20 Multi-Agent: 43.7 (#88)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1458 | 1431 |
| CL-bench Life | 13.5% | — |

## Writing & Preference

- DeepSeek V4 Pro: 65.5 (#46)
- Grok 4.20 Multi-Agent: 64.0 (#59)

| Benchmark | DeepSeek V4 Pro | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1451 | 1450 |
| LMArena Creative Writing | 1446 | 1436 |
| LMArena Multi-Turn | 1467 | 1452 |
| EQ-Bench Creative Writing | 1553 | — |
| EQ-Bench 4 | 1166 | — |

## FAQ

### Is DeepSeek V4 Pro better than Grok 4.20 Multi-Agent?

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 46.2 on the Noometry Index.

### Which is cheaper, DeepSeek V4 Pro or Grok 4.20 Multi-Agent?

DeepSeek V4 Pro is cheaper. It lists at $0.66 per million input tokens and $1.98 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

### Is DeepSeek V4 Pro or Grok 4.20 Multi-Agent better for coding?

DeepSeek V4 Pro scores higher on coding benchmarks: 52.4 versus 43.0 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1M tokens.

### How many benchmarks do DeepSeek V4 Pro and Grok 4.20 Multi-Agent share?

18 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and Grok 4.20 Multi-Agent has 20.