# Composer 2 vs Beam 1.0 501B-A23B FP8

> Side-by-side benchmark comparison for Composer 2 and Beam 1.0 501B-A23B FP8 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/composer-2-vs-reflection-beam-fp8
- Last updated: October 16, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Composer 2 and Beam 1.0 501B-A23B FP8 share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Beam 1.0 501B-A23B FP8 has the lower published output-token price.
- Beam 1.0 501B-A23B FP8 has the larger published context window at 1M.

## Model Snapshot

| Property | Composer 2 | Beam 1.0 501B-A23B FP8 |
|----------|----------|----------|
| Creator | Cursor | Reflection AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 5 | 19 |
| Pricing (input/output) | $0.50 / $2.50 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 61.7% | Coming soon | Coming soon |
| τ³-bench results | Coming soon | 36.8% | Coming soon |
| HLE w/ tools | Coming soon | 51.1% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 78.9% | 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: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| SWE Multilingual | 73.7% | 78.1% | Beam 1.0 501B-A23B FP8 |
| SWE-Rebench | 58% | Coming soon | Coming soon |
| React Native Evals | 96.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 61.7% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 43.0% | Coming soon |
| SWE-bench Pro | Coming soon | 65.9% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 78.9% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 32.2% | Coming soon |
| SWE-bench Verified | Coming soon | 80.2% | Coming soon |
| SciCode | Coming soon | 48.3% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: 85.8 (Unranked · 3 rankable rows)

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 17.4% | Coming soon |
| LongBench v2 | Coming soon | 67.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: Coming soon

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | Coming soon | 90.3% | Coming soon |
| HLE w/o tools | Coming soon | 36% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: 89.8 (#28/148)

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 80.7% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Beam 1.0 501B-A23B FP8 public-lane score: 87.9 (Unranked · 1 rankable row)

| Benchmark | Composer 2 | Beam 1.0 501B-A23B FP8 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 98.0% | Coming soon |

## FAQ

### Is there enough evidence to pick between Composer 2 and Beam 1.0 501B-A23B FP8?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Composer 2 vs Composer 2.5](/compare/composer-2-vs-composer-2-5)
- [Beam 1.0 501B-A23B FP8 vs Composer 2.5](/compare/composer-2-5-vs-reflection-beam-fp8)
- [Composer 2 vs Composer 2 Fast](/compare/composer-2-vs-composer-2-fast)
- [Beam 1.0 501B-A23B FP8 vs Composer 2 Fast](/compare/composer-2-fast-vs-reflection-beam-fp8)

## Explore More

- [Composer 2 profile](/models/composer-2)
- [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)