# Gemini 2.5 Flash-Lite vs GPT-6 Luna

> Side-by-side benchmark comparison for Gemini 2.5 Flash-Lite and GPT-6 Luna across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-2-5-flash-lite-vs-gpt-6-luna
- Last updated: November 6, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Gemini 2.5 Flash-Lite and GPT-6 Luna.

## Summary

- Gemini 2.5 Flash-Lite and GPT-6 Luna do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Gemini 2.5 Flash-Lite | GPT-6 Luna |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 1.05M |
| Independent public score (not head-to-head) | null | 62.59 |
| Benchmarks Covered | 5 | 23 |
| Pricing (input/output) | $0.10 / $0.40 | $0.10 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: Coming soon
- GPT-6 Luna public-lane score: 53.5 (Estimated · #45/131)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| ExploitGym | Coming soon | 11.6% | Coming soon |
| Hermes Index | Coming soon | 33.9% | Coming soon |
| Hermes Bench | Coming soon | 70.5% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |
| OSWorld 2.1 Offline | Coming soon | 48.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: Coming soon
- GPT-6 Luna public-lane score: 51.8 (Supported · #42/157)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 31.6% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 66.6% | Coming soon |
| Bug Hunt Bench | Coming soon | 18.3 fixes | Coming soon |
| FrontierCode 2.0 | Coming soon | 21.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: 45.3 (Unranked · 2 rankable rows)
- GPT-6 Luna public-lane score: 57.5 (#22/25)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| BioBasicsBench | Coming soon | 37.6% | Coming soon |
| ARC-AGI-1 | Coming soon | 86.67% | Coming soon |
| ARC-AGI-2 | Coming soon | 59.3% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.1% | Coming soon |
| ARC-AGI-3 Provider Adapter | Coming soon | 0.59% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: 44.6 (Unranked · 2 rankable rows)
- GPT-6 Luna public-lane score: 81.9 (Unranked · 1 rankable row)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 72.9% | Coming soon | Coming soon |
| ExtractBench Pro | Coming soon | 0% | Coming soon |
| ExtractBench (LlamaIndex) | Coming soon | 91.01% | Coming soon |
| ParseBench | Coming soon | 64.13% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: Coming soon
- GPT-6 Luna public-lane score: 63.3 (Supported · #40/178)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 64.6% | Coming soon | Coming soon |
| SimpleQA | 10.7% | Coming soon | Coming soon |
| HealthBench (raw) | Coming soon | 50.0% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 54.5% | Coming soon |
| HealthBench Professional | Coming soon | 60.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 61.2% | Coming soon |
| HealthBench Hard | Coming soon | 31.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: 35.3 (#133/157)
- GPT-6 Luna public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash-Lite public-lane score: Coming soon
- GPT-6 Luna public-lane score: 80.2 (Unranked · 2 rankable rows)

| Benchmark | Gemini 2.5 Flash-Lite | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 49.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 78.947% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 56.098% | Coming soon |

## FAQ

### Can I compare Gemini 2.5 Flash-Lite and GPT-6 Luna on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Gemini 2.5 Flash-Lite vs Gemini 2.5 Flash](/compare/gemini-2-5-flash-vs-gemini-2-5-flash-lite)
- [GPT-6 Luna vs Gemini 2.5 Flash](/compare/gemini-2-5-flash-vs-gpt-6-luna)
- [Gemini 2.5 Flash-Lite vs GPT-6 Astra](/compare/gemini-2-5-flash-lite-vs-gpt-6-astra)
- [GPT-6 Luna vs GPT-6 Astra](/compare/gpt-6-astra-vs-gpt-6-luna)

## Explore More

- [Gemini 2.5 Flash-Lite profile](/models/gemini-2-5-flash-lite)
- [GPT-6 Luna profile](/models/gpt-6-luna)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)