Model comparison
Gemini 3.1 Flash Lite vs GPT-4o
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 28.6 on the Noometry Index.
Last verified . 31 shared benchmarks.
GoogleSummary
- They share 31 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 10 categories and GPT-4o in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 3.1 Flash Lite leads 40.7 to 10.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 80% for Gemini 3.1 Flash Lite and 6.4% for GPT-4o.
- Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $2.50 / $10 for GPT-4o.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 128K.
Side by side
| Gemini 3.1 Flash Lite | GPT-4o | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 40.8 | 28.6 |
| Released | 2026-03-03 | 2024-05-13 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 128K |
| Max output | 66K | 16K |
| Input $ / M tokens | $0.25 | $2.50 |
| Output $ / M tokens | $1.50 | $10 |
| Results tracked | 38 | 72 |
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Category by category
Coding Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 37.8 (#188), GPT-4o: 24.8 (#328)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| WeirdML | 52.2% | 25.1% |
| LMArena Coding | 1400 | 1297 |
| SWE-bench Verified | — | 31% |
| SWE-bench Verified (bash only) | — | 21.6% |
| Aider Polyglot | — | 45.3% |
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| GSO | — | 0% |
| BigCodeBench Instruct | — | 51.1% |
| LiveBench Coding | — | 51.4% |
| BigCodeBench Complete | — | 61.1% |
| CadEval | — | 26% |
| ALE-Bench | 797.73 | — |
| HumanEval+ | — | 87.2% |
| MBPP+ | — | 72.2% |
Agentic & Tool Use Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 30.2 (#79), GPT-4o: 21.0 (#141)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| GDPval | — | 9.9% |
| TheAgentCompany | — | 8.6% |
| Cybench | — | 12.5% |
| DeepResearch Bench | 37.3% | — |
| BALROG | — | 32.3% |
| LMArena Search | — | 1006 |
| METR Time Horizons | — | 40.8% |
Reasoning Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 22.9 (#186), GPT-4o: 9.4 (#343)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| CritPt | 1.1% | 0% |
| Chess Puzzles | 25% | 13% |
| EnigmaEval | 3% | 0.8% |
| LMArena Hard Prompts | 1407 | 1281 |
| DTBench | 76.8% | 64.5% |
| LMCA | 35% | 16.6% |
| Epoch Capabilities Index | 144.47 | 128.97 |
| ForecastBench | 54.4 | 57.7 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 17.8% |
| Kagi LLM Benchmark | 67.2% | — |
| NYT Connections (extended) | 8.2% | — |
| ARC-AGI-1 | — | 4.5% |
| Thematic Generalization | 63.3% | — |
| LiveBench Reasoning | — | 55.8% |
| LiveBench Data Analysis | — | 60.9% |
| LiveBench | — | 55.3% |
Math Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 40.7 (#90), GPT-4o: 10.6 (#312)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| FrontierMath (Tiers 1-3) | 27.7% | 0.4% |
| OTIS Mock AIME 2024-2025 | 80% | 6.4% |
| LMArena Math | 1428 | 1285 |
| Omni-MATH | — | 29.3% |
| LiveBench Math | — | 49.5% |
| MATH Level 5 | — | 53.3% |
| FrontierMath (Feb 2025 set) | — | 0.3% |
Knowledge Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 41.9 (#104), GPT-4o: 28.8 (#242)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| GPQA Diamond | 81.8% | 49.2% |
| Humanity's Last Exam | 8.6% | 2.7% |
| Vectara Hallucination Rate | 8.2% | 9.6% |
| LMArena Expert | 1398 | 1250 |
| SimpleQA Verified | — | 26% |
| MMLU-Pro | — | 71.3% |
| Confabulations | — | 15.3% |
| GPQA (HELM) | — | 52% |
| MMLU | — | 88.1% |
Multimodal Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 39.4 (#60), GPT-4o: 34.5 (#91)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| LMArena Vision | 1240 | 1137 |
| Video-MME | — | 71.9% |
| GeoBench | — | 71% |
| VPCT | — | 40% |
| ScienceQA | — | 88.5% |
Multilingual Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 52.3 (#86), GPT-4o: 43.2 (#186)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| LMArena Non-English | 1411 | 1283 |
| LMArena Chinese | 1461 | 1277 |
| LMArena French | 1424 | 1304 |
| LMArena German | 1429 | 1282 |
| LMArena Japanese | 1413 | 1257 |
| LMArena Korean | 1392 | 1234 |
| LMArena Russian | 1420 | 1286 |
| LMArena Spanish | 1421 | 1292 |
Instruction Following Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 72.7 (#131), GPT-4o: 66.6 (#207)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| LMArena Instruction Following | 1377 | 1278 |
| LiveBench Instruction Following | — | 68.6% |
| IFEval | — | 81.7% |
Long Context Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 42.5 (#122), GPT-4o: 39.4 (#179)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| LMArena Longer Query | 1394 | 1289 |
| Fiction.LiveBench | — | 66.7% |
Writing & Preference Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 60.9 (#94), GPT-4o: 52.6 (#166)
| Benchmark | Gemini 3.1 Flash Lite | GPT-4o |
|---|---|---|
| LMArena Text | 1416 | 1300 |
| LMArena Creative Writing | 1401 | 1292 |
| LMArena Multi-Turn | 1417 | 1302 |
| Short-Story Creative Writing | — | 81.8% |
| WildBench | — | 82.8% |
| LiveBench Language | — | 47.6% |
Frequently asked questions
Is Gemini 3.1 Flash Lite better than GPT-4o?
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 28.6 on the Noometry Index.
Which is cheaper, Gemini 3.1 Flash Lite or GPT-4o?
Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; GPT-4o lists at $2.50 and $10.
Is Gemini 3.1 Flash Lite or GPT-4o better for coding?
Gemini 3.1 Flash Lite scores higher on coding benchmarks: 37.8 versus 24.8 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.1 Flash Lite does, with 1.05M tokens against 128K.
How many benchmarks do Gemini 3.1 Flash Lite and GPT-4o share?
31 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and GPT-4o has 72.