# GPT-5.6 Luna vs Qwen3.8-Omni-Flash

> Side-by-side benchmark comparison for GPT-5.6 Luna and Qwen3.8-Omni-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-6-luna-vs-qwen3-8-omni-flash
- Last updated: September 18, 2026

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

## Quick Verdict

Pick GPT-5.6 Luna if you want the stronger benchmark profile. Qwen3.8-Omni-Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.6 Luna leads overall 64.77 to 63.
- The clearest category separation is in multimodal & grounded, where the averages are 67.1 for GPT-5.6 Luna and 85.1 for Qwen3.8-Omni-Flash.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 67.2% and 57.8%.
- Qwen3.8-Omni-Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.6 Luna also has the larger context window at 1.05M.

## Model Snapshot

| Property | GPT-5.6 Luna | Qwen3.8-Omni-Flash |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 64.77 | null |
| Benchmarks Covered | 30 | 19 |
| Pricing (input/output) | $0.20 / $1.20 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 56.7 (Supported · #34/154)
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 14.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 84.7% | Coming soon | Coming soon |
| BrowseComp | 83.3% | Coming soon | Coming soon |
| OSWorld 2.0 | 45.6% | Coming soon | Coming soon |
| CyberGym | 77.9% | Coming soon | Coming soon |
| ExploitGym | 12.4% | Coming soon | Coming soon |
| Toolathlon | 53.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 79.0% | Coming soon | Coming soon |
| ApprenticeBench | 7% | Coming soon | Coming soon |
| CoWorkBench | Coming soon | 75.3% | Coming soon |
| AndroidWorld | Coming soon | 87.1% | Coming soon |

### Coding

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 66.8 (Supported · #9/154)
- Qwen3.8-Omni-Flash public-lane score: 53.5 (Estimated · #45/154)

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 62.7% | 63.3% | Qwen3.8-Omni-Flash |
| Terminal-Bench 2.0 | 84.7% | Coming soon | Coming soon |
| DeepSWE | 67.2% | 57.8% | GPT-5.6 Luna |
| FrontierCode 1.1 Extended | 55.1% | Coming soon | Coming soon |
| cursorBench32 | 61.1% | Coming soon | Coming soon |
| VulcanBench v3 | 85.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 93.0% | Coming soon | Coming soon |
| cursorBench40 | 35.9% | Coming soon | Coming soon |
| SWE Multilingual | Coming soon | 80.5% | Coming soon |
| NL2Repo | Coming soon | 48.9% | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.6% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 67.1 (#21/48)
- Qwen3.8-Omni-Flash public-lane score: 85.1 (Unranked · 7 rankable rows)

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.4% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 79.5% | Coming soon | Coming soon |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| ERQA | Coming soon | 71.0% | Coming soon |
| LVBench | Coming soon | 76.9% | Coming soon |
| RealWorldQA | Coming soon | 87.7% | Coming soon |
| MathVision | Coming soon | 91.8% | Coming soon |
| MathVision w/ Python | Coming soon | 96.2% | Coming soon |
| CharXiv w/o tools | Coming soon | 83.5% | Coming soon |
| CharXiv | Coming soon | 91.4% | Coming soon |

### Reasoning

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 51.2 (#19/20)
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 59.5% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.2% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 64.2 (Supported · #27/184)
- Qwen3.8-Omni-Flash public-lane score: 54.9 (Estimated · #54/184)

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.3% | 91% | GPT-5.6 Luna |
| GPQA-D | 92.3% | 91.0% | GPT-5.6 Luna |
| HealthBench Professional | 55.7% | Coming soon | Coming soon |
| HealthBench Hard | 32.0% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 91.7% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.0% | Coming soon | Coming soon |
| HLE | Coming soon | 36.5% | Coming soon |

### Instruction Following

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: 87.7 (#29/124)

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.5% | Coming soon |

### Mathematics

- Winner: Coming soon
- GPT-5.6 Luna public-lane score: 94.2 (Unranked · 3 rankable rows)
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | GPT-5.6 Luna | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 78.6% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 78.600% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 58.500% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-5.6 Luna or Qwen3.8-Omni-Flash?

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

### Where is the biggest gap between GPT-5.6 Luna and Qwen3.8-Omni-Flash?

The widest category gap is in multimodal & grounded, where the averages are 67.1 for GPT-5.6 Luna and 85.1 for Qwen3.8-Omni-Flash.

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

GPT-5.6 Luna currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.8-Omni-Flash cover on BenchLM?

Qwen3.8-Omni-Flash currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.6 Luna vs GPT-5.6 Sol](/compare/gpt-5-6-luna-vs-gpt-5-6-sol)
- [Qwen3.8-Omni-Flash vs GPT-5.6 Sol](/compare/gpt-5-6-sol-vs-qwen3-8-omni-flash)
- [GPT-5.6 Luna vs GPT-5.6 Terra](/compare/gpt-5-6-luna-vs-gpt-5-6-terra)
- [Qwen3.8-Omni-Flash vs GPT-5.6 Terra](/compare/gpt-5-6-terra-vs-qwen3-8-omni-flash)

## Explore More

- [GPT-5.6 Luna profile](/models/gpt-5-6-luna)
- [Qwen3.8-Omni-Flash profile](/models/qwen3-8-omni-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)