# DeepSeek V4.1 Flash vs Beam 1.0 501B-A23B FP8

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and Beam 1.0 501B-A23B FP8 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-reflection-beam-fp8
- Last updated: October 16, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Beam 1.0 501B-A23B FP8 if you want the stronger benchmark profile. DeepSeek V4.1 Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Beam 1.0 501B-A23B FP8 leads overall 71 to 65.59.
- The clearest category separation is in mathematics, where the averages are 70.1 for DeepSeek V4.1 Flash and 87.9 for Beam 1.0 501B-A23B FP8.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 74.2% and 43.0%.
- Beam 1.0 501B-A23B FP8 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 |
|----------|----------|----------|
| Creator | DeepSeek | Reflection AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 65.59 | null |
| Benchmarks Covered | 32 | 19 |
| Pricing (input/output) | $0.30 / $1.20 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 61.9 (Supported · #24/128)
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 78.9% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 31.20% | Coming soon | Coming soon |
| CyberGym | 88.1% | Coming soon | Coming soon |
| ExploitGym | 15.3% | Coming soon | Coming soon |
| HLE w/ tools | 63.9% | 51.1% | DeepSeek V4.1 Flash |
| AutomationBench | 54.8% | Coming soon | Coming soon |
| Agents' Last Exam | 31.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 74.5% | Coming soon | Coming soon |
| CWE-bench v1 | 55.0% | Coming soon | Coming soon |
| Hermes Index | 36.9% | Coming soon | Coming soon |
| Hermes Bench | 70.7% | Coming soon | Coming soon |
| τ³-bench results | Coming soon | 36.8% | Coming soon |
| MCP Atlas | Coming soon | 81.5% | Coming soon |
| BrowseComp | Coming soon | 76.7% | Coming soon |
| DeepSearchQA | Coming soon | 79.6% | Coming soon |

### Coding

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 60.7 (Supported · #18/150)
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 78.9% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | 43.0% | DeepSeek V4.1 Flash |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | Coming soon | Coming soon |
| OpenHarmony Bench | 60.3% | Coming soon | Coming soon |
| Bug Hunt Bench | 21.7 fixes | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 65.9% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 32.2% | Coming soon |
| SWE Multilingual | Coming soon | 78.1% | Coming soon |
| SWE-bench Verified | Coming soon | 80.2% | Coming soon |
| SciCode | Coming soon | 48.3% | Coming soon |

### Reasoning

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 83.4 (Unranked · 4 rankable rows)
- Beam 1.0 501B-A23B FP8 public-lane score: 85.8 (Unranked · 3 rankable rows)

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| STEMBench | 2.49 | Coming soon | Coming soon |
| JevBench 1.4 | 4.77 | Coming soon | Coming soon |
| JevBench 1.5 | 6.65 | Coming soon | Coming soon |
| CritPt | Coming soon | 17.4% | Coming soon |
| LongBench v2 | Coming soon | 67.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 77.9 (Unranked · 1 rankable row)
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (tools) | 78.9% | Coming soon | Coming soon |
| BabyVision w/ Python | 89.6% | Coming soon | Coming soon |
| ZeroBench w/ Python | 49.0% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 65.3 (Supported · #33/184)
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | Coming soon | Coming soon |
| GPQA-D | 90.9% | 90.3% | DeepSeek V4.1 Flash |
| HLE | 36.8% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 36% | Coming soon |

### Instruction Following

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: 89.8 (#28/148)

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 80.7% | Coming soon |

### Mathematics

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 70.1 (Unranked · 3 rankable rows)
- Beam 1.0 501B-A23B FP8 public-lane score: 87.9 (Unranked · 1 rankable row)

| Benchmark | DeepSeek V4.1 Flash | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 67.368% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 26.829% | Coming soon | Coming soon |
| AIME26 | Coming soon | 98.0% | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or Beam 1.0 501B-A23B FP8?

Beam 1.0 501B-A23B FP8 is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V4.1 Flash and Beam 1.0 501B-A23B FP8?

The widest category gap is in mathematics, where the averages are 70.1 for DeepSeek V4.1 Flash and 87.9 for Beam 1.0 501B-A23B FP8.

### How many benchmarks does DeepSeek V4.1 Flash cover on BenchLM?

DeepSeek V4.1 Flash currently has 32 sourced benchmark scores on BenchLM.

### 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.

## Related Comparisons

- [DeepSeek V4.1 Flash vs Beam 1.0 501B-A23B](/compare/deepseek-v4-1-flash-vs-reflection-beam)
- [Beam 1.0 501B-A23B FP8 vs Beam 1.0 501B-A23B](/compare/reflection-beam-vs-reflection-beam-fp8)
- [DeepSeek V4.1 Flash vs Beam 1.0 501B-A23B NVFP4](/compare/deepseek-v4-1-flash-vs-reflection-beam-nvfp4)
- [Beam 1.0 501B-A23B FP8 vs Beam 1.0 501B-A23B NVFP4](/compare/reflection-beam-fp8-vs-reflection-beam-nvfp4)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [Beam 1.0 501B-A23B FP8 profile](/models/reflection-beam-fp8)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)