# Beam vs Solar Open 2

> Side-by-side benchmark comparison for Beam and Solar Open 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/reflection-beam-vs-solar-open-2
- Last updated: October 5, 2026

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

## Quick Verdict

Treat this as a split decision: use the category and benchmark breakdown to decide which profile better matches your workload.

## Summary

- Beam and Solar Open 2 are tied on overall score, so the decision depends on category fit rather than the headline number.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 78.7% and 58.2%.
- Solar Open 2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Solar Open 2 also has the larger context window at 1M.

## Model Snapshot

| Property | Beam | Solar Open 2 |
|----------|----------|----------|
| Creator | Reflection AI | Upstage |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | null | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 16 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 80.1% | Coming soon | Coming soon |
| MCP Atlas | 78.7% | 58.2% | Beam |
| BrowseComp | 77.4% | Coming soon | Coming soon |
| DeepSearchQA | 80.1% | Coming soon | Coming soon |
| terminalBenchHard | Coming soon | 28.3% | Coming soon |
| APEX-Agents | Coming soon | 16.6% | Coming soon |

### Coding

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 44.4% | Coming soon | Coming soon |
| SWE-bench Pro | 65.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 80.1% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | 34.6% | Coming soon | Coming soon |
| SWE Multilingual | 78% | Coming soon | Coming soon |
| SWE-bench Verified | 80.9% | 70.4% | Beam |
| SciCode | 49.7% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 65.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 90.5% | 86.3% | Beam |
| HLE w/o tools | 36.2% | 28.8% | Beam |
| MMLU-Pro | Coming soon | 86.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.7% | 80% | Solar Open 2 |

### Mathematics

- Winner: Not comparable
- Beam public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Beam | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.8% | 95.7% | Beam |
| HMMT Feb 2026 | Coming soon | 93.9% | Coming soon |

## FAQ

### Which is better overall, Beam or Solar Open 2?

Beam and Solar Open 2 are tied on overall score in the current BenchLM data.

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

Beam currently has 16 sourced benchmark scores on BenchLM.

### How many benchmarks does Solar Open 2 cover on BenchLM?

Solar Open 2 currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Beam vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-reflection-beam)
- [Solar Open 2 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-solar-open-2)
- [Beam vs GPT-6 Astra](/compare/gpt-6-astra-vs-reflection-beam)
- [Solar Open 2 vs GPT-6 Astra](/compare/gpt-6-astra-vs-solar-open-2)

## Explore More

- [Beam profile](/models/reflection-beam)
- [Solar Open 2 profile](/models/solar-open-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)