# Beam 1.0 501B-A23B FP8 vs Sakana Fugu-Ultra

> Side-by-side benchmark comparison for Beam 1.0 501B-A23B FP8 and Sakana Fugu-Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/reflection-beam-fp8-vs-sakana-fugu-ultra
- Last updated: October 16, 2026

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

## Quick Verdict

Pick Sakana Fugu-Ultra if you want the stronger benchmark profile. Beam 1.0 501B-A23B FP8 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 71.
- The clearest category separation is in reasoning, where the averages are 85.8 for Beam 1.0 501B-A23B FP8 and 84.4 for Sakana Fugu-Ultra.
- The biggest single benchmark swing is HLE w/o tools in Knowledge, with scores of 36% and 50%.

## Model Snapshot

| Property | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra |
|----------|----------|----------|
| Creator | Reflection AI | Sakana AI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 19 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 36.8% | Coming soon | Coming soon |
| HLE w/ tools | 51.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 78.9% | 82.1% | Sakana Fugu-Ultra |
| MCP Atlas | 81.5% | Coming soon | Coming soon |
| BrowseComp | 76.7% | Coming soon | Coming soon |
| DeepSearchQA | 79.6% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 43.0% | Coming soon | Coming soon |
| SWE-bench Pro | 65.9% | 73.7% | Sakana Fugu-Ultra |
| Terminal-Bench 2.1 | 78.9% | 82.1% | Sakana Fugu-Ultra |
| SWE-Atlas Codebase QnA | 32.2% | Coming soon | Coming soon |
| SWE Multilingual | 78.1% | Coming soon | Coming soon |
| SWE-bench Verified | 80.2% | Coming soon | Coming soon |
| SciCode | 48.3% | 58.7% | Sakana Fugu-Ultra |
| LiveCodeBench v6 | Coming soon | 93.2% | Coming soon |
| LiveCodeBench Pro | Coming soon | 90.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: 85.8 (Unranked · 3 rankable rows)
- Sakana Fugu-Ultra public-lane score: 84.4 (Unranked · 1 rankable row)

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 17.4% | Coming soon | Coming soon |
| LongBench v2 | 67.6% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 93.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: 77.1 (Unranked · 1 rankable row)

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 86.6% | Coming soon |

### Knowledge

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 90.3% | 95.5% | Sakana Fugu-Ultra |
| HLE w/o tools | 36% | 50% | Sakana Fugu-Ultra |
| GPQA | Coming soon | 95.5% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: 89.8 (#28/148)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 80.7% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Beam 1.0 501B-A23B FP8 public-lane score: 87.9 (Unranked · 1 rankable row)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B FP8 | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 98.0% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Beam 1.0 501B-A23B FP8 or Sakana Fugu-Ultra?

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

### Where is the biggest gap between Beam 1.0 501B-A23B FP8 and Sakana Fugu-Ultra?

The widest category gap is in reasoning, where the averages are 85.8 for Beam 1.0 501B-A23B FP8 and 84.4 for Sakana Fugu-Ultra.

### How many benchmarks does Beam 1.0 501B-A23B FP8 cover on BenchLM?

Beam 1.0 501B-A23B FP8 currently has 19 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

- [Beam 1.0 501B-A23B FP8 vs Beam 1.0 501B-A23B](/compare/reflection-beam-vs-reflection-beam-fp8)
- [Sakana Fugu-Ultra vs Beam 1.0 501B-A23B](/compare/reflection-beam-vs-sakana-fugu-ultra)
- [Beam 1.0 501B-A23B FP8 vs Beam 1.0 501B-A23B NVFP4](/compare/reflection-beam-fp8-vs-reflection-beam-nvfp4)
- [Sakana Fugu-Ultra vs Beam 1.0 501B-A23B NVFP4](/compare/reflection-beam-nvfp4-vs-sakana-fugu-ultra)

## Explore More

- [Beam 1.0 501B-A23B FP8 profile](/models/reflection-beam-fp8)
- [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)