# GPT-6 Luna vs Beam

> Side-by-side benchmark comparison for GPT-6 Luna and Beam across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-6 Luna and Beam 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 has the lower published output-token price.
- GPT-6 Luna has the larger published context window at 1.05M.

## Model Snapshot

| Property | GPT-6 Luna | Beam |
|----------|----------|----------|
| Creator | OpenAI | Reflection AI |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | null |
| Independent public score (not head-to-head) | 65.64 | null |
| Benchmarks Covered | 10 | 16 |
| Pricing (input/output) | $0.10 / $0.50 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-6 Luna public-lane score: 54.6 (Estimated · #37/119)
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| ExploitGym | 11.6% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.1% | 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: Insufficient shared evidence
- GPT-6 Luna public-lane score: 53.7 (Supported · #34/144)
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 66.6% | 44.4% | GPT-6 Luna |
| SWE-bench Pro | Coming soon | 65.5% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.1% | 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: Insufficient shared evidence
- GPT-6 Luna public-lane score: 55.5 (#24/27)
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 86.70% | Coming soon | Coming soon |
| ARC-AGI-2 | 59.3% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.1% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 65.5% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-6 Luna public-lane score: 78.5 (Unranked · 1 rankable row)
- Beam public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-6 Luna public-lane score: 64.4 (Supported · #28/171)
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| HealthBench (raw) | 50.0% | Coming soon | Coming soon |
| HealthBench (length-adjusted) | 54.5% | Coming soon | Coming soon |
| HealthBench Professional | 60.8% | Coming soon | Coming soon |
| HealthBench Professional (raw) | 61.2% | Coming soon | Coming soon |
| HealthBench Hard | 31.4% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 90.5% | Coming soon |
| HLE w/o tools | Coming soon | 36.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-6 Luna public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.7% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-6 Luna public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | GPT-6 Luna | Beam | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 97.8% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-6 Luna and Beam?

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

- [GPT-6 Luna vs GPT-6 Astra](/compare/gpt-6-astra-vs-gpt-6-luna)
- [Beam vs GPT-6 Astra](/compare/gpt-6-astra-vs-reflection-beam)
- [GPT-6 Luna vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-luna)
- [Beam vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-reflection-beam)

## Explore More

- [GPT-6 Luna profile](/models/gpt-6-luna)
- [Beam profile](/models/reflection-beam)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)