# Grok 4.20 vs Sakana Fugu

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

- Canonical page: https://benchlm.ai/compare/grok-4-20-beta-vs-sakana-fugu
- Last updated: September 27, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

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

## Summary

- Sakana Fugu leads overall 65 to 59.66.
- The clearest category separation is in multimodal & grounded, where the averages are 34.6 for Grok 4.20 and 68.6 for Sakana Fugu.
- The biggest single benchmark swing is CharXiv in Multimodal & Grounded, with scores of 60.9% and 85.1%.
- Sakana Fugu 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 | Sakana Fugu |
|----------|----------|----------|
| Creator | xAI | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 2M | 1M |
| Overall Score | 59.66 | null |
| Benchmarks Covered | 23 | 11 |
| Pricing (input/output) | $1.25 / $2.50 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Grok 4.20 public-lane score: 24.5 (Supported · #81/105)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Grok 4.20 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 47.1% | Coming soon | Coming soon |
| DeepSearchQA | 62.8% | Coming soon | Coming soon |
| Gert Labs | 38.36% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 44.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |

### Coding

- Winner: Not comparable
- Grok 4.20 public-lane score: 23.8 (Supported · #106/135)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Grok 4.20 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 74.2% | 87.8% | Sakana Fugu |
| SWE-bench Verified | 76.7% | Coming soon | Coming soon |
| SWE-bench Pro | 51.8% | 59% | Sakana Fugu |
| Vibe Code Bench | 4.06% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.3% | Coming soon | Coming soon |
| SWE-bench (Vals) | 72.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.9% | Coming soon |
| SciCode | Coming soon | 60.1% | Coming soon |

### Reasoning

- Winner: Not comparable
- Grok 4.20 public-lane score: 41.1 (Unranked · 2 rankable rows)
- Sakana Fugu public-lane score: 70.6 (Unranked · 1 rankable row)

| Benchmark | Grok 4.20 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 53.3% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.1% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 86.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Grok 4.20 public-lane score: 34.6 (#45/50)
- Sakana Fugu public-lane score: 68.6 (Unranked · 1 rankable row)

| Benchmark | Grok 4.20 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 75.2% | Coming soon | Coming soon |
| CharXiv | 60.9% | 85.1% | Sakana Fugu |
| ERQA | 54.1% | Coming soon | Coming soon |
| SimpleVQA | 57.4% | Coming soon | Coming soon |
| MedXpertQA (MM) | 65.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Grok 4.20 public-lane score: 51 (Supported · #55/158)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Grok 4.20 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 88.5% | 95.5% | Sakana Fugu |
| HLE w/o tools | 31.6% | 47.2% | Sakana Fugu |
| HealthBench Hard | 20.3% | Coming soon | Coming soon |
| MedXpertQA (Text) | 50.2% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.3% | Coming soon | Coming soon |
| GPQA | Coming soon | 95.5% | Coming soon |

## FAQ

### Which is better overall, Grok 4.20 or Sakana Fugu?

Sakana Fugu is ahead overall on BenchLM right now.

### Where is the biggest gap between Grok 4.20 and Sakana Fugu?

The widest category gap is in multimodal & grounded, where the averages are 34.6 for Grok 4.20 and 68.6 for Sakana Fugu.

### 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 Sakana Fugu cover on BenchLM?

Sakana Fugu currently has 11 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)
- [Sakana Fugu vs Grok 4.20 Multi-agent](/compare/grok-4-20-multi-agent-beta-vs-sakana-fugu)
- [Grok 4.20 vs Sakana Fugu-Ultra](/compare/grok-4-20-beta-vs-sakana-fugu-ultra)
- [Sakana Fugu vs Sakana Fugu-Ultra](/compare/sakana-fugu-vs-sakana-fugu-ultra)

## Explore More

- [Grok 4.20 profile](/models/grok-4-20-beta)
- [Sakana Fugu profile](/models/sakana-fugu)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)