# Gemini 1.5 Flash vs Gemini 2.0 Flash

> Side-by-side benchmark comparison for Gemini 1.5 Flash and Gemini 2.0 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-1-5-flash-vs-gemini-2-0-flash
- Last updated: October 14, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Gemini 2.0 Flash if you want the stronger benchmark profile. Gemini 1.5 Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 2.0 Flash leads overall 46 to 43.
- The biggest single benchmark swing is SimpleQA in Knowledge, with scores of 8.6% and 29.9%.

## Model Snapshot

| Property | Gemini 1.5 Flash | Gemini 2.0 Flash |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 5 | 5 |
| Pricing (input/output) | N/A | N/A |

## Category Breakdown

### Coding

- Winner: Not comparable
- Gemini 1.5 Flash public-lane score: Coming soon
- Gemini 2.0 Flash public-lane score: Coming soon

| Benchmark | Gemini 1.5 Flash | Gemini 2.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 9.6% | 21.4% | Gemini 2.0 Flash |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 1.5 Flash public-lane score: Coming soon
- Gemini 2.0 Flash public-lane score: Coming soon

| Benchmark | Gemini 1.5 Flash | Gemini 2.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 58.3% | 69.3% | Gemini 2.0 Flash |

### Knowledge

- Winner: Not comparable
- Gemini 1.5 Flash public-lane score: Coming soon
- Gemini 2.0 Flash public-lane score: Coming soon

| Benchmark | Gemini 1.5 Flash | Gemini 2.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 50% | 65.2% | Gemini 2.0 Flash |
| SimpleQA | 8.6% | 29.9% | Gemini 2.0 Flash |

### Mathematics

- Winner: Not comparable
- Gemini 1.5 Flash public-lane score: Coming soon
- Gemini 2.0 Flash public-lane score: Coming soon

| Benchmark | Gemini 1.5 Flash | Gemini 2.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 14.7% | 29.7% | Gemini 2.0 Flash |

## FAQ

### Which is better overall, Gemini 1.5 Flash or Gemini 2.0 Flash?

Gemini 2.0 Flash is ahead overall on BenchLM right now.

### How many benchmarks does Gemini 1.5 Flash cover on BenchLM?

Gemini 1.5 Flash currently has 5 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemini 2.0 Flash cover on BenchLM?

Gemini 2.0 Flash currently has 5 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 1.5 Flash vs Gemini 2.0 Flash-Lite](/compare/gemini-1-5-flash-vs-gemini-2-0-flash-lite)
- [Gemini 2.0 Flash vs Gemini 2.0 Flash-Lite](/compare/gemini-2-0-flash-vs-gemini-2-0-flash-lite)
- [Gemini 1.5 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-1-5-flash)
- [Gemini 2.0 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-2-0-flash)

## Explore More

- [Gemini 1.5 Flash profile](/models/gemini-1-5-flash)
- [Gemini 2.0 Flash profile](/models/gemini-2-0-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)