# Grok 4.5 vs Laguna S 2.1

> Side-by-side benchmark comparison for Grok 4.5 and Laguna S 2.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-5-vs-laguna-s-2-1
- Last updated: September 4, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Grok 4.5 if you want the stronger benchmark profile. Laguna S 2.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.5 leads overall 68.64 to 56.
- The clearest category separation is in coding, where the averages are 62.6 for Grok 4.5 and 47.8 for Laguna S 2.1.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 83.3% and 70.2%.
- Laguna S 2.1 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Laguna S 2.1 also has the larger context window at 1M.

## Model Snapshot

| Property | Grok 4.5 | Laguna S 2.1 |
|----------|----------|----------|
| Creator | xAI | Poolside |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 500K | 1M |
| Overall Score | 68.64 | null |
| Benchmarks Covered | 15 | 6 |
| Pricing (input/output) | $2.00 / $6.00 | $0.10 / $0.20 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Grok 4.5 public-lane score: 62.9 (Supported · #17/151)
- Laguna S 2.1 public-lane score: 48.2 (Estimated · #77/151)

| Benchmark | Grok 4.5 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 15.7% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 83.3% | 70.2% | Grok 4.5 |
| deepSwe | 53% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.8% | Coming soon | Coming soon |
| Toolathlon-Verified | Coming soon | 49.7% | Coming soon |

### Coding

- Winner: Coming soon
- Grok 4.5 public-lane score: 62.6 (Supported · #17/183)
- Laguna S 2.1 public-lane score: 47.8 (Estimated · #87/183)

| Benchmark | Grok 4.5 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 64.7% | 59.4% | Grok 4.5 |
| SWE Multilingual | 78% | 78.5% | Laguna S 2.1 |
| Terminal-Bench 2.0 | 83.3% | 70.2% | Grok 4.5 |
| cursorBench32 | 66.7% | Coming soon | Coming soon |
| VulcanBench v3 | 89.9% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 86.6% | Coming soon | Coming soon |
| deepSwe | Coming soon | 40.4% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Grok 4.5 public-lane score: 78.1 (Unranked · 1 rankable row)
- Laguna S 2.1 public-lane score: Coming soon

### Reasoning

- Winner: Coming soon
- Grok 4.5 public-lane score: 44.3 (#22/22)
- Laguna S 2.1 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.6% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Grok 4.5 public-lane score: 70 (Supported · #14/181)
- Laguna S 2.1 public-lane score: Coming soon

| Benchmark | Grok 4.5 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 92.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.2% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Grok 4.5 or Laguna S 2.1?

Grok 4.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Grok 4.5 and Laguna S 2.1?

The widest category gap is in coding, where the averages are 62.6 for Grok 4.5 and 47.8 for Laguna S 2.1.

### How many benchmarks does Grok 4.5 cover on BenchLM?

Grok 4.5 currently has 15 sourced benchmark scores on BenchLM.

### How many benchmarks does Laguna S 2.1 cover on BenchLM?

Laguna S 2.1 currently has 6 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Grok 4.5 vs Laguna M.1](/compare/grok-4-5-vs-laguna-m-1)
- [Laguna S 2.1 vs Laguna M.1](/compare/laguna-m-1-vs-laguna-s-2-1)
- [Grok 4.5 vs Laguna XS.2](/compare/grok-4-5-vs-laguna-xs-2)
- [Laguna S 2.1 vs Laguna XS.2](/compare/laguna-s-2-1-vs-laguna-xs-2)

## Explore More

- [Grok 4.5 profile](/models/grok-4-5)
- [Laguna S 2.1 profile](/models/laguna-s-2-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)