# Gemini 2.5 Flash vs Gemini 3.5 Flash-Lite

> Side-by-side benchmark comparison for Gemini 2.5 Flash and Gemini 3.5 Flash-Lite across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-2-5-flash-vs-gemini-3-5-flash-lite
- Last updated: September 4, 2026

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

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Gemini 2.5 Flash and Gemini 3.5 Flash-Lite.

## Summary

- Gemini 2.5 Flash and Gemini 3.5 Flash-Lite 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 | Gemini 3.5 Flash-Lite |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 51.68 | 60.5 |
| Benchmarks Covered | 2 | 10 |
| Pricing (input/output) | $0.30 / $2.50 | $0.30 / $2.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: Coming soon
- Gemini 3.5 Flash-Lite public-lane score: 43.4 (Estimated · #104/151)

| Benchmark | Gemini 2.5 Flash | Gemini 3.5 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 54% | Coming soon |
| OSWorld-Verified | Coming soon | 74% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 50.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 49.5 (Estimated · #78/183)
- Gemini 3.5 Flash-Lite public-lane score: 43.6 (Supported · #121/183)

| Benchmark | Gemini 2.5 Flash | Gemini 3.5 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 54.0% | Coming soon |
| SWE-bench Pro | Coming soon | 54.2% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 79.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 75.0% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 56.2 (Unranked · 1 rankable row)
- Gemini 3.5 Flash-Lite public-lane score: 76.1 (#16/48)

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 55.5 (Unranked · 2 rankable rows)
- Gemini 3.5 Flash-Lite public-lane score: 60.8 (Unranked · 3 rankable rows)

| Benchmark | Gemini 2.5 Flash | Gemini 3.5 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | Coming soon | 72.2% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 45.8 (Estimated · #113/181)
- Gemini 3.5 Flash-Lite public-lane score: 53 (Supported · #71/181)

| Benchmark | Gemini 2.5 Flash | Gemini 3.5 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | Coming soon | 83.8% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 85.8% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 45.1 (#91/120)
- Gemini 3.5 Flash-Lite public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 2.5 Flash public-lane score: 28.7 (Unranked · 2 rankable rows)
- Gemini 3.5 Flash-Lite public-lane score: Coming soon

| Benchmark | Gemini 2.5 Flash | Gemini 3.5 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 4.844% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.167% | Coming soon | Coming soon |

## FAQ

### Can I compare Gemini 2.5 Flash and Gemini 3.5 Flash-Lite 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 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-2-5-flash)
- [Gemini 3.5 Flash-Lite vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-5-flash-lite)
- [Gemini 2.5 Flash vs GPT-6 Astra](/compare/gemini-2-5-flash-vs-gpt-6-astra)
- [Gemini 3.5 Flash-Lite vs GPT-6 Astra](/compare/gemini-3-5-flash-lite-vs-gpt-6-astra)

## Explore More

- [Gemini 2.5 Flash profile](/models/gemini-2-5-flash)
- [Gemini 3.5 Flash-Lite profile](/models/gemini-3-5-flash-lite)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)