# Gemini 2.5 Flash vs Gemini 2.5 Flash-Lite

> Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 37.0 on the Noometry Index. Gemini 2.5 Flash-Lite costs 4.9× less per token, which makes it the better buy when Gemini 2.5 Flash's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gemini-2-5-flash-vs-gemini-2-5-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 33

## Summary

- They share 33 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 7 categories and Gemini 2.5 Flash-Lite in 3 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in long context, where Gemini 2.5 Flash leads 47.5 to 33.3.
- The biggest single-benchmark swing is Fiction.LiveBench: 77.8% for Gemini 2.5 Flash and 47.2% for Gemini 2.5 Flash-Lite.
- Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.30 / $2.50 for Gemini 2.5 Flash.

## Snapshot

| | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| Provider | Google | Google |
| Noometry Index | 39.3 | 37.0 |
| Rank | 170 | 211 |
| Context | 1.05M | 1.05M |
| Input $/M | $0.30 | $0.10 |
| Output $/M | $2.50 | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.5 Flash: 35.8 (#220)
- Gemini 2.5 Flash-Lite: 38.5 (#173)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| WeirdML | 41.9% | 35.2% |
| LMArena Coding | 1424 | 1373 |
| ALE-Bench | 661.88 | 325.9 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |

## Agentic & Tool Use

- Gemini 2.5 Flash: 30.8 (#74)
- Gemini 2.5 Flash-Lite: 28.0 (#96)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | 56.2% | 36.9% |
| Terminal-Bench | 17.1% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |

## Reasoning

- Gemini 2.5 Flash: 18.1 (#286)
- Gemini 2.5 Flash-Lite: 22.2 (#205)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| Kagi LLM Benchmark | 56.8% | 40.5% |
| LMArena Hard Prompts | 1422 | 1377 |
| DTBench | 76.5% | 62.8% |
| LMCA | 27.5% | 18.1% |
| Epoch Capabilities Index | 143.03 | 133.94 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| EnigmaEval | 2.7% | — |
| ForecastBench | 60.6 | — |

## Math

- Gemini 2.5 Flash: 39.9 (#98)
- Gemini 2.5 Flash-Lite: 38.0 (#144)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| Omni-MATH | 38.5% | 48% |
| LMArena Math | 1415 | 1373 |
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 2.5 Flash: 36.4 (#168)
- Gemini 2.5 Flash-Lite: 32.5 (#210)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| MMLU-Pro | 63.9% | 53.7% |
| Vectara Hallucination Rate | 7.8% | 3.3% |
| GPQA (HELM) | 39% | 30.9% |
| LMArena Expert | 1426 | 1373 |
| Humanity's Last Exam | 12.1% | — |
| Confabulations | 16.8% | — |

## Multimodal

- Gemini 2.5 Flash: 41.8 (#32)
- Gemini 2.5 Flash-Lite: 29.1 (#114)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | 1253 | 1198 |
| VPCT | 46.2% | 30% |
| GeoBench | 76% | — |
| SpatialViz-Bench | 36.9% | — |

## Multilingual

- Gemini 2.5 Flash: 52.3 (#88)
- Gemini 2.5 Flash-Lite: 49.3 (#134)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | 1409 | 1369 |
| LMArena Chinese | 1450 | 1404 |
| LMArena French | 1433 | 1388 |
| LMArena German | 1418 | 1389 |
| LMArena Japanese | 1405 | 1359 |
| LMArena Korean | 1385 | 1360 |
| LMArena Russian | 1415 | 1373 |
| LMArena Spanish | 1421 | 1396 |

## Instruction Following

- Gemini 2.5 Flash: 75.7 (#54)
- Gemini 2.5 Flash-Lite: 70.0 (#168)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| IFEval | 89.8% | 81% |
| LMArena Instruction Following | 1405 | 1367 |

## Long Context

- Gemini 2.5 Flash: 47.5 (#17)
- Gemini 2.5 Flash-Lite: 33.3 (#262)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| Fiction.LiveBench | 77.8% | 47.2% |
| LMArena Longer Query | 1419 | 1373 |

## Writing & Preference

- Gemini 2.5 Flash: 53.8 (#157)
- Gemini 2.5 Flash-Lite: 56.8 (#135)

| Benchmark | Gemini 2.5 Flash | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | 1417 | 1379 |
| LMArena Creative Writing | 1400 | 1367 |
| WildBench | 81.7% | 81.8% |
| LMArena Multi-Turn | 1408 | 1366 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |

## FAQ

### Is Gemini 2.5 Flash better than Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash is the stronger model overall, scoring 39.3 to 37.0 on the Noometry Index. Gemini 2.5 Flash-Lite costs 4.9× less per token, which makes it the better buy when Gemini 2.5 Flash's lead doesn't matter for your workload.

### Which is cheaper, Gemini 2.5 Flash or Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Gemini 2.5 Flash lists at $0.30 and $2.50.

### Is Gemini 2.5 Flash or Gemini 2.5 Flash-Lite better for coding?

Gemini 2.5 Flash-Lite scores higher on coding benchmarks: 38.5 versus 35.8 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1.05M tokens.

### How many benchmarks do Gemini 2.5 Flash and Gemini 2.5 Flash-Lite share?

33 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.