# Grok 4.20 vs Laguna XS.2

> Side-by-side benchmark comparison for Grok 4.20 and Laguna XS.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-20-beta-vs-laguna-xs-2
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Grok 4.20 if you want the stronger benchmark profile. Laguna XS.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.20 leads overall 67.13 to 1.53.
- The clearest category separation is in knowledge, where the averages are 49.4 for Grok 4.20 and 17.7 for Laguna XS.2.
- The biggest single benchmark swing is GPQA Diamond (Vals) in Knowledge, with scores of 88.6% and 55.1%.
- Laguna XS.2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Grok 4.20 also has the larger context window at 2M.

## Model Snapshot

| Property | Grok 4.20 | Laguna XS.2 |
|----------|----------|----------|
| Creator | xAI | Poolside |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 2M | 256K |
| Overall Score | 67.13 | 1.53 |
| Benchmarks Covered | 23 | 10 |
| Pricing (input/output) | $2.00 / $6.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Grok 4.20 public-lane score: 26.7 (Supported · #145/152)
- Laguna XS.2 public-lane score: 22.4 (Estimated · #149/152)

| Benchmark | Grok 4.20 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 47.1% | 35.7% | Grok 4.20 |
| DeepSearchQA | 62.8% | Coming soon | Coming soon |
| Gert Labs | 38.36% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 44.2% | 25.8% | Grok 4.20 |

### Coding

- Winner: Grok 4.20
- Grok 4.20 public-lane score: 28.2 (Supported · #141/151)
- Laguna XS.2 public-lane score: 24.7 (Supported · #148/151)

| Benchmark | Grok 4.20 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 74.2% | Coming soon | Coming soon |
| SWE-bench Verified | 76.7% | 69.9% | Grok 4.20 |
| SWE-bench Pro | 51.8% | 46.3% | Grok 4.20 |
| Vibe Code Bench | 4.06% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.3% | 67.8% | Grok 4.20 |
| SWE-bench (Vals) | 72.2% | 55.2% | Grok 4.20 |
| SWE Multilingual | Coming soon | 57.7% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 35.7% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Grok 4.20 public-lane score: 34.6 (#43/48)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Grok 4.20 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 75.2% | Coming soon | Coming soon |
| CharXiv | 60.9% | Coming soon | Coming soon |
| ERQA | 54.1% | Coming soon | Coming soon |
| SimpleVQA | 57.4% | Coming soon | Coming soon |
| MedXpertQA (MM) | 65.8% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Grok 4.20 public-lane score: 34.2 (Unranked · 2 rankable rows)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Grok 4.20 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 53.3% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Grok 4.20 public-lane score: 49.4 (Supported · #85/183)
- Laguna XS.2 public-lane score: 17.7 (Estimated · #183/183)

| Benchmark | Grok 4.20 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 88.5% | Coming soon | Coming soon |
| HLE w/o tools | 31.6% | Coming soon | Coming soon |
| HealthBench Hard | 20.3% | Coming soon | Coming soon |
| MedXpertQA (Text) | 50.2% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.6% | 55.1% | Grok 4.20 |
| MMLU-Pro (Vals) | 86.3% | 69.1% | Grok 4.20 |

## FAQ

### Which is better overall, Grok 4.20 or Laguna XS.2?

Grok 4.20 is ahead overall on BenchLM right now.

### Where is the biggest gap between Grok 4.20 and Laguna XS.2?

The widest category gap is in knowledge, where the averages are 49.4 for Grok 4.20 and 17.7 for Laguna XS.2.

### How many benchmarks does Grok 4.20 cover on BenchLM?

Grok 4.20 currently has 23 sourced benchmark scores on BenchLM.

### How many benchmarks does Laguna XS.2 cover on BenchLM?

Laguna XS.2 currently has 10 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Grok 4.20 vs Grok 4.20 Multi-agent](/compare/grok-4-20-beta-vs-grok-4-20-multi-agent-beta)
- [Laguna XS.2 vs Grok 4.20 Multi-agent](/compare/grok-4-20-multi-agent-beta-vs-laguna-xs-2)
- [Grok 4.20 vs Laguna M.1](/compare/grok-4-20-beta-vs-laguna-m-1)
- [Laguna XS.2 vs Laguna M.1](/compare/laguna-m-1-vs-laguna-xs-2)

## Explore More

- [Grok 4.20 profile](/models/grok-4-20-beta)
- [Laguna XS.2 profile](/models/laguna-xs-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)