# Granite 4.2 8B vs Sakana Fugu-Ultra

> Side-by-side benchmark comparison for Granite 4.2 8B and Sakana Fugu-Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/granite-4-2-8b-vs-sakana-fugu-ultra
- Last updated: October 15, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Sakana Fugu-Ultra leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Sakana Fugu-Ultra has the higher overall point estimate 77 to 33.4. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 56.8 for Granite 4.2 8B and 84.4 for Sakana Fugu-Ultra.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 20.6% and 82.1%.
- Sakana Fugu-Ultra is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Sakana Fugu-Ultra also has the larger context window at 1M.

## Model Snapshot

| Property | Granite 4.2 8B | Sakana Fugu-Ultra |
|----------|----------|----------|
| Creator | IBM | Sakana AI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1M |
| Overall Score | 33.4 | null |
| Benchmarks Covered | 14 | 11 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Granite 4.2 8B public-lane score: 15.7 (Estimated · #113/127)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 20.6% | 82.1% | Sakana Fugu-Ultra |
| τ³-bench results | 58.1% | Coming soon | Coming soon |
| BFCL v4 | 52.4% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- Granite 4.2 8B public-lane score: 17.2 (Estimated · #125/150)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 47.7% | Coming soon | Coming soon |
| SWE-bench Pro | 19.1% | 73.7% | Sakana Fugu-Ultra |
| SWE Multilingual | 30.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 20.6% | 82.1% | Sakana Fugu-Ultra |
| LiveCodeBench v6 | 73.2% | 93.2% | Sakana Fugu-Ultra |
| SciCode | 36.1% | 58.7% | Sakana Fugu-Ultra |
| LiveCodeBench Pro | Coming soon | 90.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Granite 4.2 8B public-lane score: 56.8 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra public-lane score: 84.4 (Unranked · 1 rankable row)

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | Coming soon | 93.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Granite 4.2 8B public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: 77.1 (Unranked · 1 rankable row)

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 86.6% | Coming soon |

### Knowledge

- Winner: Not comparable
- Granite 4.2 8B public-lane score: 30.6 (Supported · #154/184)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 64.1% | 95.5% | Sakana Fugu-Ultra |
| MMLU-Pro | 74.0% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 95.5% | Coming soon |
| HLE w/o tools | Coming soon | 50% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Granite 4.2 8B public-lane score: 86.5 (#41/146)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.3% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Granite 4.2 8B public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 86.7% | Coming soon | Coming soon |
| HMMT Feb 2025 | 78.3% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Granite 4.2 8B or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Granite 4.2 8B and Sakana Fugu-Ultra?

The widest category gap is in reasoning, where the averages are 56.8 for Granite 4.2 8B and 84.4 for Sakana Fugu-Ultra.

### How many benchmarks does Granite 4.2 8B cover on BenchLM?

Granite 4.2 8B currently has 14 sourced benchmark scores on BenchLM.

### How many benchmarks does Sakana Fugu-Ultra cover on BenchLM?

Sakana Fugu-Ultra currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Granite 4.2 8B vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-granite-4-2-8b)
- [Sakana Fugu-Ultra vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-sakana-fugu-ultra)
- [Granite 4.2 8B vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-granite-4-2-8b)
- [Sakana Fugu-Ultra vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-sakana-fugu-ultra)

## Explore More

- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Sakana Fugu-Ultra profile](/models/sakana-fugu-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)