Model comparison
Gemini 3.5 Flash Lite vs Gemini 3 Flash Preview
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 41.5 on the Noometry Index.
Last verified . 35 shared benchmarks.
GoogleSummary
- They share 35 benchmarks with published results for both. Gemini 3.5 Flash Lite scores higher in 0 categories and Gemini 3 Flash Preview in 10 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 3 Flash Preview leads 51.7 to 25.9.
- The biggest single-benchmark swing is ARC-AGI-1: 53.5% for Gemini 3.5 Flash Lite and 84.7% for Gemini 3 Flash Preview.
- Gemini 3.5 Flash Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $0.50 / $3 for Gemini 3 Flash Preview.
Side by side
| Gemini 3.5 Flash Lite | Gemini 3 Flash Preview | |
|---|---|---|
| Provider | ||
| Noometry Index | 41.5 | 52.3 |
| Released | 2026-07-21 | 2025-12-17 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1.05M |
| Max output | 66K | 66K |
| Input $ / M tokens | $0.30 | $0.50 |
| Output $ / M tokens | $2.50 | $3 |
| Results tracked | 39 | 59 |
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Category by category
Coding Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 42.4 (#104), Gemini 3 Flash Preview: 50.9 (#42)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena WebDev | 1440 | 1439 |
| WeirdML | 39% | 61.6% |
| LMArena Coding | 1453 | 1460 |
| ALE-Bench | 765.27 | 1,367 |
| SWE-bench Verified | — | 75.4% |
| SWE-bench Verified (bash only) | — | 75.8% |
| SWE-bench Multilingual | — | 72.7% |
| SciCode | 41.3% | — |
| GSO | — | 9.8% |
Agentic & Tool Use Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 25.7 (#107), Gemini 3 Flash Preview: 38.7 (#29)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| GDP.pdf | 10% | 10% |
| Terminal-Bench | — | 64.3% |
| APEX-Agents | 29.3% | — |
| τ²-bench Airline | — | 82.5% |
| τ²-bench Banking | — | 27.3% |
| τ²-bench Retail | — | 76.8% |
| τ²-bench Telecom | — | 91.2% |
| DeepResearch Bench | — | 49.8% |
| BALROG | — | 48.1% |
| LMArena Search | — | 1198 |
| Vending-Bench 2 | — | 3,635 |
Reasoning Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 27.8 (#114), Gemini 3 Flash Preview: 49.2 (#37)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| ARC-AGI-2 | 10.3% | 33.6% |
| NYT Connections (extended) | 60.4% | 83.1% |
| ARC-AGI-1 | 53.5% | 84.7% |
| Chess Puzzles | 22% | 40% |
| LMArena Hard Prompts | 1441 | 1465 |
| Mystery Game Puzzles | 19% | 26% |
| DTBench | 83.5% | 89.1% |
| LMCA | 37.6% | 43.1% |
| Epoch Capabilities Index | 145.13 | 151.8 |
| SimpleBench | — | 61.1% |
| CritPt | 0% | — |
| ForecastBench | — | 58.5 |
Math Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 25.9 (#264), Gemini 3 Flash Preview: 51.7 (#55)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| FrontierMath (Tiers 1-3) | 26% | 51.2% |
| FrontierMath Tier 4 | 0% | 17.1% |
| OTIS Mock AIME 2024-2025 | 71.1% | 95.6% |
| ProofBench | 13% | 15% |
| LMArena Math | 1433 | 1473 |
| MathArena Final-Answer Competitions | — | 67.6% |
| FrontierMath (Feb 2025 set) | — | 35.6% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 50.1 (#72), Gemini 3 Flash Preview: 58.8 (#33)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| GPQA Diamond | 83.3% | 89.4% |
| LMArena Expert | 1435 | 1462 |
| SimpleQA Verified | — | 66.8% |
| Vectara Hallucination Rate | — | 13.5% |
Multimodal Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 41.1 (#40), Gemini 3 Flash Preview: 45.5 (#16)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena Vision | 1268 | 1285 |
| GeoBench | — | 88% |
| VPCT | — | 72.6% |
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | — | 1413 |
Multilingual Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 53.5 (#63), Gemini 3 Flash Preview: 55.7 (#27)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena Non-English | 1427 | 1458 |
| LMArena Chinese | 1469 | 1511 |
| LMArena French | 1451 | 1477 |
| LMArena German | 1454 | 1497 |
| LMArena Japanese | 1427 | 1489 |
| LMArena Korean | 1407 | 1443 |
| LMArena Russian | 1443 | 1480 |
| LMArena Spanish | 1442 | 1469 |
Instruction Following Too close to call
Gemini 3.5 Flash Lite: 74.8 (#85), Gemini 3 Flash Preview: 75.7 (#56)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena Instruction Following | 1420 | 1437 |
Long Context Too close to call
Gemini 3.5 Flash Lite: 43.9 (#84), Gemini 3 Flash Preview: 44.4 (#67)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena Longer Query | 1435 | 1452 |
Writing & Preference Gemini 3 Flash Preview leads
Gemini 3.5 Flash Lite: 64.2 (#57), Gemini 3 Flash Preview: 65.5 (#45)
| Benchmark | Gemini 3.5 Flash Lite | Gemini 3 Flash Preview |
|---|---|---|
| LMArena Text | 1435 | 1466 |
| LMArena Creative Writing | 1420 | 1457 |
| LMArena Multi-Turn | 1445 | 1471 |
| EQ-Bench Creative Writing | 1559 | — |
Frequently asked questions
Is Gemini 3.5 Flash Lite better than Gemini 3 Flash Preview?
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 41.5 on the Noometry Index.
Which is cheaper, Gemini 3.5 Flash Lite or Gemini 3 Flash Preview?
Gemini 3.5 Flash Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; Gemini 3 Flash Preview lists at $0.50 and $3.
Is Gemini 3.5 Flash Lite or Gemini 3 Flash Preview better for coding?
Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 42.4 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do Gemini 3.5 Flash Lite and Gemini 3 Flash Preview share?
35 benchmarks have published results for both models. Gemini 3.5 Flash Lite has 39 scored results on Noometry and Gemini 3 Flash Preview has 59.