# Beam 1.0 501B-A23B vs SWE-2 Flash

> Side-by-side benchmark comparison for Beam 1.0 501B-A23B and SWE-2 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/reflection-beam-vs-swe-2-flash
- Last updated: November 5, 2026

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

## Quick Verdict

Beam 1.0 501B-A23B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Beam 1.0 501B-A23B has the higher overall point estimate 43.92 to 0. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is SWE-Atlas Codebase QnA in Coding, with scores of 31.8% and 50.0%.

## Model Snapshot

| Property | Beam 1.0 501B-A23B | SWE-2 Flash |
|----------|----------|----------|
| Creator | Reflection AI | Cognition |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 43.92 | null |
| Benchmarks Covered | 19 | 7 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: 45.4 (Supported · #64/135)
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 36.1% | Coming soon | Coming soon |
| HLE w/ tools | 51.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 80.1% | 89.2% | SWE-2 Flash |
| MCP Atlas | 80.8% | Coming soon | Coming soon |
| BrowseComp | 76.8% | Coming soon | Coming soon |
| DeepSearchQA | 80.5% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 20.00% | Coming soon |

### Coding

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: 30 (Estimated · #104/156)
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 43.3% | 60.1% | SWE-2 Flash |
| SWE-bench Pro | 66.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 80.1% | 89.2% | SWE-2 Flash |
| SWE-Atlas Codebase QnA | 31.8% | 50.0% | SWE-2 Flash |
| SWE Multilingual | 78.3% | Coming soon | Coming soon |
| SWE-bench Verified | 81.6% | Coming soon | Coming soon |
| SciCode | 49.2% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 45.5% | Coming soon |
| FrontierCode 2.0 | Coming soon | 24.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: 78.7 (Unranked · 2 rankable rows)
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 16.3% | Coming soon | Coming soon |
| LongBench v2 | 67.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: 49.2 (Supported · #84/177)
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 90.6% | Coming soon | Coming soon |
| HLE w/o tools | 36% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: Coming soon
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.6% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Beam 1.0 501B-A23B public-lane score: Coming soon
- SWE-2 Flash public-lane score: Coming soon

| Benchmark | Beam 1.0 501B-A23B | SWE-2 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.7% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Beam 1.0 501B-A23B or SWE-2 Flash?

Beam 1.0 501B-A23B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

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

Beam 1.0 501B-A23B currently has 19 sourced benchmark scores on BenchLM.

### How many benchmarks does SWE-2 Flash cover on BenchLM?

SWE-2 Flash currently has 7 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Beam 1.0 501B-A23B vs Beam 1.0 501B-A23B FP8](/compare/reflection-beam-vs-reflection-beam-fp8)
- [SWE-2 Flash vs Beam 1.0 501B-A23B FP8](/compare/reflection-beam-fp8-vs-swe-2-flash)
- [Beam 1.0 501B-A23B vs Beam 1.0 501B-A23B NVFP4](/compare/reflection-beam-vs-reflection-beam-nvfp4)
- [SWE-2 Flash vs Beam 1.0 501B-A23B NVFP4](/compare/reflection-beam-nvfp4-vs-swe-2-flash)

## Explore More

- [Beam 1.0 501B-A23B profile](/models/reflection-beam)
- [SWE-2 Flash profile](/models/swe-2-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)