# Claude Opus 4.8 vs Fugu Cyber

> Side-by-side benchmark comparison for Claude Opus 4.8 and Fugu Cyber across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-8-vs-sakana-fugu-cyber
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Opus 4.8 and Fugu Cyber.

## Summary

- Claude Opus 4.8 and Fugu Cyber do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Claude Opus 4.8 | Fugu Cyber |
|----------|----------|----------|
| Creator | Anthropic | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 72.3 | null |
| Benchmarks Covered | 38 | 2 |
| Pricing (input/output) | $5.00 / $25.00 | $6.00 / $36.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 63.2 (Supported · #16/151)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 21.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 74.6% | Coming soon | Coming soon |
| BrowseComp | 84.3% | Coming soon | Coming soon |
| DeepSearchQA | 93.1% | Coming soon | Coming soon |
| OSWorld-Verified | 83.4% | Coming soon | Coming soon |
| Finance Agent v2 | 53.9% | Coming soon | Coming soon |
| MCP Atlas | 82.2% | Coming soon | Coming soon |
| Toolathlon | 59.9% | Coming soon | Coming soon |
| Gert Labs | 72.97% | Coming soon | Coming soon |
| ResearchClawBench | 21.1% | Coming soon | Coming soon |
| OSWorld 2.0 | 20.6% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 71.9% | Coming soon | Coming soon |
| CyberGym | Coming soon | 86.9% | Coming soon |
| CTI-REALM | Coming soon | 72.1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 66.5 (Supported · #12/183)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 88.6% | Coming soon | Coming soon |
| SWE-bench Pro | 69.2% | Coming soon | Coming soon |
| SWE Multilingual | 84.4% | Coming soon | Coming soon |
| SWE Multimodal | 38.4% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 74.6% | Coming soon | Coming soon |
| cursorBench31 | 58.4% | Coming soon | Coming soon |
| cursorBench32 | 62.3% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 46.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.8% | Coming soon | Coming soon |
| SWE-bench (Vals) | 88.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 87.5 (#3/48)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |
| ScreenSpot Pro | 87.9% | Coming soon | Coming soon |
| CharXiv | 89.9% | Coming soon | Coming soon |
| CharXiv w/o tools | 80.5% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 55.1 (#20/22)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 72.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 1.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 71.7 (Supported · #9/181)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | Coming soon | Coming soon |
| GPQA-D | 93.6% | Coming soon | Coming soon |
| HLE | 57.9% | Coming soon | Coming soon |
| HLE w/o tools | 49.8% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 92.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 75.2 (#59/120)
- Fugu Cyber public-lane score: Coming soon

### Multilingual

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: Coming soon
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| INCLUDE | 87.6% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Opus 4.8 public-lane score: 65.4 (#2/7)
- Fugu Cyber public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Fugu Cyber | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 96.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 47.241% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 31.250% | Coming soon | Coming soon |

## FAQ

### Can I compare Claude Opus 4.8 and Fugu Cyber on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Claude Opus 4.8 vs Sakana Fugu-Ultra](/compare/claude-opus-4-8-vs-sakana-fugu-ultra)
- [Fugu Cyber vs Sakana Fugu-Ultra](/compare/sakana-fugu-cyber-vs-sakana-fugu-ultra)
- [Claude Opus 4.8 vs Sakana Fugu](/compare/claude-opus-4-8-vs-sakana-fugu)
- [Fugu Cyber vs Sakana Fugu](/compare/sakana-fugu-vs-sakana-fugu-cyber)

## Explore More

- [Claude Opus 4.8 profile](/models/claude-opus-4-8)
- [Fugu Cyber profile](/models/sakana-fugu-cyber)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)