Model comparison
Claude Sonnet 4 vs Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.8 to 40.6 on the Noometry Index.
Last verified . 30 shared benchmarks.
GoogleSummary
- They share 30 benchmarks with published results for both. Claude Sonnet 4 scores higher in 3 categories and Gemini 3.5 Flash Lite in 7 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 4 leads 41.5 to 25.7.
- The biggest single-benchmark swing is ARC-AGI-1: 40% for Claude Sonnet 4 and 53.5% for Gemini 3.5 Flash Lite.
- Gemini 3.5 Flash Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.
- Gemini 3.5 Flash Lite accepts more context: 1.05M tokens versus 200K.
Side by side
| Claude Sonnet 4 | Gemini 3.5 Flash Lite | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 40.6 | 41.8 |
| Released | 2025-05-22 | 2026-07-21 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 1.05M |
| Max output | 64K | 66K |
| Input $ / M tokens | $3 | $0.30 |
| Output $ / M tokens | $15 | $2.50 |
| Results tracked | 58 | 38 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Claude Sonnet 4 leads
Claude Sonnet 4: 44.0 (#70), Gemini 3.5 Flash Lite: 42.1 (#96)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| SciCode | 40% | 41.3% |
| WeirdML | 46.1% | 39% |
| LMArena Coding | 1414 | 1455 |
| ALE-Bench | 655.35 | 765.27 |
| SWE-bench Verified (bash only) | 64.9% | — |
| Aider Polyglot | 61.3% | — |
| LMArena WebDev | — | 1440 |
| GSO | 4.9% | — |
Agentic & Tool Use Claude Sonnet 4 leads
Claude Sonnet 4: 38.3 (#29), Gemini 3.5 Flash Lite: 28.6 (#82)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| TheAgentCompany | 33.1% | — |
| Cybench | 35% | — |
| DeepResearch Bench | 46.6% | — |
| OSWorld | 43.9% | — |
| GDP.pdf | — | 10% |
| METR Time Horizons | 62% | — |
Reasoning Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 23.0 (#169), Gemini 3.5 Flash Lite: 27.8 (#95)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| ARC-AGI-2 | 5.9% | 10.3% |
| ARC-AGI-1 | 40% | 53.5% |
| CritPt | 0.3% | 0% |
| LMArena Hard Prompts | 1372 | 1441 |
| DTBench | 77.1% | 83.5% |
| LMCA | 29% | 37.6% |
| Epoch Capabilities Index | 141.69 | 145.12 |
| SimpleBench | 45.5% | — |
| Kagi LLM Benchmark | 73% | — |
| NYT Connections (extended) | — | 60.4% |
| Chess Puzzles | — | 22% |
| EnigmaEval | 3.1% | — |
| Mystery Game Puzzles | — | 19% |
| ForecastBench | 60.2 | — |
Math Claude Sonnet 4 leads
Claude Sonnet 4: 41.5 (#71), Gemini 3.5 Flash Lite: 25.7 (#245)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 71.1% | 71.1% |
| LMArena Math | 1375 | 1431 |
| FrontierMath (Tiers 1-3) | — | 26% |
| FrontierMath Tier 4 | — | 0% |
| ProofBench | — | 13% |
| Omni-MATH | 60.2% | — |
| MATH Level 5 | 84.4% | — |
| FrontierMath (Feb 2025 set) | 4.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 41.6 (#99), Gemini 3.5 Flash Lite: 50.0 (#66)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| GPQA Diamond | 79.2% | 83.3% |
| LMArena Expert | 1371 | 1430 |
| Humanity's Last Exam | 7.8% | — |
| MMLU-Pro | 84.3% | — |
| Confabulations | 13.2% | — |
| Vectara Hallucination Rate | 10.3% | — |
| GPQA (HELM) | 70.6% | — |
Multimodal Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 25.6 (#116), Gemini 3.5 Flash Lite: 40.3 (#38)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Vision | 1191 | 1266 |
| GeoBench | 37% | — |
| VPCT | 34% | — |
| MindCube | 44.8% | — |
Multilingual Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 46.9 (#151), Gemini 3.5 Flash Lite: 53.8 (#59)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Non-English | 1333 | 1428 |
| LMArena Chinese | 1351 | 1467 |
| LMArena French | 1364 | 1452 |
| LMArena German | 1331 | 1454 |
| LMArena Japanese | 1301 | 1428 |
| LMArena Korean | 1293 | 1406 |
| LMArena Russian | 1355 | 1443 |
| LMArena Spanish | 1356 | 1440 |
Instruction Following Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 71.8 (#141), Gemini 3.5 Flash Lite: 75.0 (#77)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Instruction Following | 1375 | 1420 |
| IFEval | 84% | — |
Long Context Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 33.6 (#254), Gemini 3.5 Flash Lite: 43.8 (#80)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Longer Query | 1398 | 1435 |
| Fiction.LiveBench | 46.9% | — |
Writing & Preference Gemini 3.5 Flash Lite leads
Claude Sonnet 4: 57.3 (#127), Gemini 3.5 Flash Lite: 64.4 (#55)
| Benchmark | Claude Sonnet 4 | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Text | 1351 | 1436 |
| LMArena Creative Writing | 1345 | 1419 |
| EQ-Bench Creative Writing | 1483 | 1559 |
| LMArena Multi-Turn | 1376 | 1445 |
| Short-Story Creative Writing | 81.4% | — |
| WildBench | 83.8% | — |
Frequently asked questions
Is Claude Sonnet 4 better than Gemini 3.5 Flash Lite?
Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.8 to 40.6 on the Noometry Index.
Which is cheaper, Claude Sonnet 4 or Gemini 3.5 Flash Lite?
Gemini 3.5 Flash Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; Claude Sonnet 4 lists at $3 and $15.
Is Claude Sonnet 4 or Gemini 3.5 Flash Lite better for coding?
Claude Sonnet 4 scores higher on coding benchmarks: 44.0 versus 42.1 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.5 Flash Lite does, with 1.05M tokens against 200K.
How many benchmarks do Claude Sonnet 4 and Gemini 3.5 Flash Lite share?
30 benchmarks have published results for both models. Claude Sonnet 4 has 58 scored results on Noometry and Gemini 3.5 Flash Lite has 38.