# GPT-5.6 Sol vs Beam 1.0 501B-A23B NVFP4

> Side-by-side benchmark comparison for GPT-5.6 Sol and Beam 1.0 501B-A23B NVFP4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-6-sol-vs-reflection-beam-nvfp4
- Last updated: October 16, 2026

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

## Quick Verdict

Pick GPT-5.6 Sol if you want the stronger benchmark profile. Beam 1.0 501B-A23B NVFP4 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.6 Sol leads overall 75.3 to 70.
- The clearest category separation is in reasoning, where the averages are 76.5 for GPT-5.6 Sol and 85.5 for Beam 1.0 501B-A23B NVFP4.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 72.7% and 42.7%.
- Beam 1.0 501B-A23B NVFP4 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.6 Sol also has the larger context window at 1.05M.

## Model Snapshot

| Property | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 |
|----------|----------|----------|
| Creator | OpenAI | Reflection AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 75.3 | null |
| Benchmarks Covered | 41 | 19 |
| Pricing (input/output) | $4.00 / $20.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 68.7 (Supported · #12/128)
- Beam 1.0 501B-A23B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.6% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 91.9% | 78.4% | GPT-5.6 Sol |
| BrowseComp | 92.2% | 75.6% | GPT-5.6 Sol |
| OSWorld 2.0 | 62.6% | Coming soon | Coming soon |
| CyberGym | 84.5% | Coming soon | Coming soon |
| ExploitGym | 33.7% | Coming soon | Coming soon |
| Toolathlon | 58% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 85.8% | Coming soon | Coming soon |
| ApprenticeBench | 26% | Coming soon | Coming soon |
| MazeBench | 13% | Coming soon | Coming soon |
| τ³-bench results | Coming soon | 35.4% | Coming soon |
| HLE w/ tools | Coming soon | 51.1% | Coming soon |
| MCP Atlas | Coming soon | 80.5% | Coming soon |
| DeepSearchQA | Coming soon | 81.1% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 67.4 (Supported · #11/150)
- Beam 1.0 501B-A23B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Bug Hunt Bench | 42.0 fixes | Coming soon | Coming soon |
| SWE-bench Pro | 64.6% | 65.6% | Beam 1.0 501B-A23B NVFP4 |
| Terminal-Bench 2.1 | 91.9% | 78.4% | GPT-5.6 Sol |
| DeepSWE | 72.7% | 42.7% | GPT-5.6 Sol |
| FrontierCode 1.1 Extended | 60.6% | Coming soon | Coming soon |
| FrontierSWE v2 | 32.2% | Coming soon | Coming soon |
| CursorBench 3.2 | 67.2% | Coming soon | Coming soon |
| VulcanBench v3 | 87.0% | Coming soon | Coming soon |
| VulcanBench CII v1 | 86.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.6% | Coming soon | Coming soon |
| SWE-bench (Vals) | 96.2% | Coming soon | Coming soon |
| CursorBench 4.0 | 41.7% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 36.2% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 31.4% | Coming soon |
| SWE Multilingual | Coming soon | 77.5% | Coming soon |
| SWE-bench Verified | Coming soon | 80.7% | Coming soon |
| SciCode | Coming soon | 46.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 76.5 (#16/28)
- Beam 1.0 501B-A23B NVFP4 public-lane score: 85.5 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 92.5% | Coming soon | Coming soon |
| ARC-AGI-3 | 7.8% | Coming soon | Coming soon |
| GeneBench-Pro | 28.7% | Coming soon | Coming soon |
| ARC-AGI-1 | 96.50% | Coming soon | Coming soon |
| CritPt | Coming soon | 15.4% | Coming soon |
| LongBench v2 | Coming soon | 67.2% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 89.8 (#6/54)
- Beam 1.0 501B-A23B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 84.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 77.2 (Supported · #11/184)
- Beam 1.0 501B-A23B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.6% | Coming soon | Coming soon |
| GPQA-D | 94.6% | 89.3% | GPT-5.6 Sol |
| HLE-Verified | 54.5% | Coming soon | Coming soon |
| LABBench2 | 82.1% | Coming soon | Coming soon |
| HealthBench Professional | 60.5% | Coming soon | Coming soon |
| HealthBench Hard | 33.1% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.1% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 34.8% | Coming soon |

### Instruction Following

- Winner: Directional only
- GPT-5.6 Sol public-lane score: 89.1 (#31/148)
- Beam 1.0 501B-A23B NVFP4 public-lane score: 86.2 (#44/148)

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 27.0% | Coming soon | Coming soon |
| IFBench | Coming soon | 79.2% | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-5.6 Sol public-lane score: 95.8 (Unranked · 3 rankable rows)
- Beam 1.0 501B-A23B NVFP4 public-lane score: 87.9 (Unranked · 1 rankable row)

| Benchmark | GPT-5.6 Sol | Beam 1.0 501B-A23B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 89% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 89.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 83.000% | Coming soon | Coming soon |
| AIME26 | Coming soon | 97.5% | Coming soon |

## FAQ

### Which is better overall, GPT-5.6 Sol or Beam 1.0 501B-A23B NVFP4?

GPT-5.6 Sol is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.6 Sol and Beam 1.0 501B-A23B NVFP4?

The widest category gap is in reasoning, where the averages are 76.5 for GPT-5.6 Sol and 85.5 for Beam 1.0 501B-A23B NVFP4.

### How many benchmarks does GPT-5.6 Sol cover on BenchLM?

GPT-5.6 Sol currently has 41 sourced benchmark scores on BenchLM.

### How many benchmarks does Beam 1.0 501B-A23B NVFP4 cover on BenchLM?

Beam 1.0 501B-A23B NVFP4 currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.6 Sol vs GPT-5.6 Terra](/compare/gpt-5-6-sol-vs-gpt-5-6-terra)
- [Beam 1.0 501B-A23B NVFP4 vs GPT-5.6 Terra](/compare/gpt-5-6-terra-vs-reflection-beam-nvfp4)
- [GPT-5.6 Sol vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-gpt-5-6-sol)
- [Beam 1.0 501B-A23B NVFP4 vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-reflection-beam-nvfp4)

## Explore More

- [GPT-5.6 Sol profile](/models/gpt-5-6-sol)
- [Beam 1.0 501B-A23B NVFP4 profile](/models/reflection-beam-nvfp4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)