# DeepSeek V4.1 Flash vs Beam

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

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-reflection-beam
- Last updated: October 5, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

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

## Summary

- DeepSeek V4.1 Flash leads overall 67.72 to 0.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 74.2% and 44.4%.
- Beam is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- DeepSeek V4.1 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | Beam |
|----------|----------|----------|
| Creator | DeepSeek | Reflection AI |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | null |
| Overall Score | 67.72 | null |
| Benchmarks Covered | 26 | 16 |
| Pricing (input/output) | $0.30 / $1.20 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 60.8 (Supported · #20/119)
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 80.1% | 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% | Coming soon | Coming soon |
| 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 |
| MCP Atlas | Coming soon | 78.7% | Coming soon |
| BrowseComp | Coming soon | 77.4% | Coming soon |
| DeepSearchQA | Coming soon | 80.1% | Coming soon |

### Coding

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 62.4 (Supported · #16/144)
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 80.1% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | 44.4% | 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 |
| SWE-bench Pro | Coming soon | 65.5% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 34.6% | Coming soon |
| SWE Multilingual | Coming soon | 78% | Coming soon |
| SWE-bench Verified | Coming soon | 80.9% | Coming soon |
| SciCode | Coming soon | 49.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 79.6 (Unranked · 4 rankable rows)
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 4.77 | Coming soon | Coming soon |
| JevBench 1.5 | 6.65 | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 65.5% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: 74.5 (Unranked · 1 rankable row)
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | 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: 64.6 (Supported · #26/171)
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | Coming soon | Coming soon |
| GPQA-D | 90.9% | 90.5% | DeepSeek V4.1 Flash |
| HLE | 36.8% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 36.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.7% | Coming soon |

### Mathematics

- Winner: Not comparable
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Beam | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |
| AIME26 | Coming soon | 97.8% | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or Beam?

DeepSeek V4.1 Flash is ahead overall on BenchLM right now.

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

DeepSeek V4.1 Flash currently has 26 sourced benchmark scores on BenchLM.

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

Beam currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4.1 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v4-1-flash)
- [Beam vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-reflection-beam)
- [DeepSeek V4.1 Flash vs GPT-6 Astra](/compare/deepseek-v4-1-flash-vs-gpt-6-astra)
- [Beam vs GPT-6 Astra](/compare/gpt-6-astra-vs-reflection-beam)

## Explore More

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