# Inkling vs Sakana Fugu-Ultra

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

- Canonical page: https://benchlm.ai/compare/inkling-vs-sakana-fugu-ultra
- Last updated: October 14, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

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

## Summary

- Sakana Fugu-Ultra leads overall 77 to 52.13.
- The clearest category separation is in multimodal & grounded, where the averages are 67.5 for Inkling and 77.1 for Sakana Fugu-Ultra.
- The biggest single benchmark swing is HLE w/o tools in Knowledge, with scores of 30% and 50%.
- Sakana Fugu-Ultra is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Inkling | Sakana Fugu-Ultra |
|----------|----------|----------|
| Creator | Thinking Machines Lab | Sakana AI |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 1M |
| Overall Score | 52.13 | null |
| Benchmarks Covered | 24 | 11 |
| Pricing (input/output) | $1.87 / $4.68 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Inkling public-lane score: 36.2 (Supported · #72/124)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 63.8% | 82.1% | Sakana Fugu-Ultra |
| BrowseComp | 77.1% | Coming soon | Coming soon |
| MCP Atlas | 74.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 47.6% | Coming soon | Coming soon |
| CWE-bench v1 | 37.0% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- Inkling public-lane score: 34 (Supported · #80/149)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.6% | Coming soon | Coming soon |
| SWE-bench Pro | 54.3% | 73.7% | Sakana Fugu-Ultra |
| Terminal-Bench 2.1 | 63.8% | 82.1% | Sakana Fugu-Ultra |
| FrontierSWE v2 | 4.1% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 77.6% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 93.2% | Coming soon |
| LiveCodeBench Pro | Coming soon | 90.8% | Coming soon |
| SciCode | Coming soon | 58.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- Inkling public-lane score: 79 (#14/29)
- Sakana Fugu-Ultra public-lane score: 84.4 (Unranked · 1 rankable row)

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | Coming soon | 93.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Inkling public-lane score: 67.5 (#35/54)
- Sakana Fugu-Ultra public-lane score: 77.1 (Unranked · 1 rankable row)

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 73.5% | Coming soon | Coming soon |
| CharXiv | 82% | 86.6% | Sakana Fugu-Ultra |
| CharXiv w/o tools | 78.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Inkling public-lane score: 54.5 (Supported · #62/181)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.9% | 95.5% | Sakana Fugu-Ultra |
| GPQA-D | 87.9% | 95.5% | Sakana Fugu-Ultra |
| HLE | 46% | Coming soon | Coming soon |
| HLE w/o tools | 30% | 50% | Sakana Fugu-Ultra |
| GPQA Diamond (Vals) | 87.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.3% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Inkling public-lane score: 87.6 (#35/128)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.8% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Inkling public-lane score: 58.3 (#11/12)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Inkling | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.1% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 33.333% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.878% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Inkling or Sakana Fugu-Ultra?

Sakana Fugu-Ultra is ahead overall on BenchLM right now.

### Where is the biggest gap between Inkling and Sakana Fugu-Ultra?

The widest category gap is in multimodal & grounded, where the averages are 67.5 for Inkling and 77.1 for Sakana Fugu-Ultra.

### How many benchmarks does Inkling cover on BenchLM?

Inkling currently has 24 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

- [Inkling vs Inkling-Small](/compare/inkling-vs-inkling-small)
- [Sakana Fugu-Ultra vs Inkling-Small](/compare/inkling-small-vs-sakana-fugu-ultra)
- [Inkling vs Sakana Fugu](/compare/inkling-vs-sakana-fugu)
- [Sakana Fugu-Ultra vs Sakana Fugu](/compare/sakana-fugu-vs-sakana-fugu-ultra)

## Explore More

- [Inkling profile](/models/inkling)
- [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)