# Claude Opus 4.5 vs Laguna XS.2

> Side-by-side benchmark comparison for Claude Opus 4.5 and Laguna XS.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-5-vs-laguna-xs-2
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Claude Opus 4.5 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

- Claude Opus 4.5 leads overall 58.41 to 1.53.
- The clearest category separation is in knowledge, where the averages are 53.9 for Claude Opus 4.5 and 17.7 for Laguna XS.2.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 59.3% and 35.7%.
- Laguna XS.2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Laguna XS.2 also has the larger context window at 256K.

## Model Snapshot

| Property | Claude Opus 4.5 | Laguna XS.2 |
|----------|----------|----------|
| Creator | Anthropic | Poolside |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 256K |
| Overall Score | 58.41 | 1.53 |
| Benchmarks Covered | 45 | 10 |
| Pricing (input/output) | $5.00 / $25.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 43.2 (Estimated · #97/152)
- Laguna XS.2 public-lane score: 22.4 (Estimated · #149/152)

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59.3% | 35.7% | Claude Opus 4.5 |
| OSWorld-Verified | 66.3% | Coming soon | Coming soon |
| OSWorld | 66.3% | Coming soon | Coming soon |
| Claw-Eval | 59.6% | Coming soon | Coming soon |
| QwenClawBench | 52.3% | Coming soon | Coming soon |
| τ³-bench results | 70.2% | Coming soon | Coming soon |
| VITA-Bench | 23.3% | Coming soon | Coming soon |
| DeepPlanning | 26.4% | Coming soon | Coming soon |
| Toolathlon | 43.5% | Coming soon | Coming soon |
| MCP Atlas | 42.3% | Coming soon | Coming soon |
| MCP-Tasks | 71.8% | Coming soon | Coming soon |
| WideResearch | 76.4% | Coming soon | Coming soon |
| CyberGym | 50.6% | Coming soon | Coming soon |
| Gert Labs | 64.23% | Coming soon | Coming soon |
| JobBench | 32.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 25.8% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 56.6 (Estimated · #36/151)
- Laguna XS.2 public-lane score: 24.7 (Supported · #148/151)

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.9% | 69.9% | Claude Opus 4.5 |
| LiveCodeBench v6 | 84.8% | Coming soon | Coming soon |
| SWE-bench Pro | 57.1% | 46.3% | Claude Opus 4.5 |
| SWE Multilingual | 77.5% | 57.7% | Claude Opus 4.5 |
| NL2Repo | 43.2% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 35.7% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 67.8% | Coming soon |
| SWE-bench (Vals) | Coming soon | 55.2% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 23.5 (#46/48)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 70.6% | Coming soon | Coming soon |
| MathVision | 74.3% | Coming soon | Coming soon |
| CharXiv | 68.5% | Coming soon | Coming soon |
| VideoMMMU | 84.4% | Coming soon | Coming soon |
| ScreenSpot Pro | 45.7% | Coming soon | Coming soon |
| V* | 67.0% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 72.1 (Unranked · 4 rankable rows)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 64.4% | Coming soon | Coming soon |
| AI-Needle | 74% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 53.9 (Estimated · #61/183)
- Laguna XS.2 public-lane score: 17.7 (Estimated · #183/183)

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87% | Coming soon | Coming soon |
| SuperGPQA | 70.6% | Coming soon | Coming soon |
| MMLU-Pro | 89.5% | Coming soon | Coming soon |
| MMLU-Redux | 96.6% | Coming soon | Coming soon |
| C-Eval | 92.2% | Coming soon | Coming soon |
| HLE | 30.8% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 55.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 69.1% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 39.5 (#105/123)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.9% | Coming soon | Coming soon |
| IFBench | 58% | Coming soon | Coming soon |

### Multilingual

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 82.9 (#2/12)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 85.7% | Coming soon | Coming soon |
| NOVA-63 | 56.7% | Coming soon | Coming soon |

### Mathematics

- Winner: Coming soon
- Claude Opus 4.5 public-lane score: 58.3 (#6/7)
- Laguna XS.2 public-lane score: Coming soon

| Benchmark | Claude Opus 4.5 | Laguna XS.2 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.1% | Coming soon | Coming soon |
| HMMT Feb 2025 | 92.9% | Coming soon | Coming soon |
| HMMT Nov 2025 | 93.3% | Coming soon | Coming soon |
| HMMT Feb 2026 | 85.3% | Coming soon | Coming soon |
| MMAnswerBench | 84.0% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 20.690% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.167% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.5 or Laguna XS.2?

Claude Opus 4.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.5 and Laguna XS.2?

The widest category gap is in knowledge, where the averages are 53.9 for Claude Opus 4.5 and 17.7 for Laguna XS.2.

### How many benchmarks does Claude Opus 4.5 cover on BenchLM?

Claude Opus 4.5 currently has 45 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

- [Claude Opus 4.5 vs Claude Opus 4.5 Thinking](/compare/claude-opus-4-5-vs-claude-opus-4-5-thinking)
- [Laguna XS.2 vs Claude Opus 4.5 Thinking](/compare/claude-opus-4-5-thinking-vs-laguna-xs-2)
- [Claude Opus 4.5 vs Laguna M.1](/compare/claude-opus-4-5-vs-laguna-m-1)
- [Laguna XS.2 vs Laguna M.1](/compare/laguna-m-1-vs-laguna-xs-2)

## Explore More

- [Claude Opus 4.5 profile](/models/claude-opus-4-5)
- [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)