Model comparison
Gemini 3.5 Flash vs Grok-2 (Dec 2024)
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 33.7 on the Noometry Index.
Last verified . 24 shared benchmarks.
GoogleSummary
- They share 24 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 8 categories and Grok-2 (Dec 2024) in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 16.9.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Gemini 3.5 Flash and 11.5% for Grok-2 (Dec 2024).
Side by side
| Gemini 3.5 Flash | Grok-2 (Dec 2024) | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 54.2 | 33.7 |
| Released | 2026-05-19 | 2024-08-13 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.50 | — |
| Output $ / M tokens | $9 | — |
| Results tracked | 54 | 34 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Gemini 3.5 Flash leads
Gemini 3.5 Flash: 49.4 (#49), Grok-2 (Dec 2024): 33.3 (#258)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| WeirdML | 62.6% | 22.2% |
| LMArena Coding | 1492 | 1287 |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| LMArena WebDev | 1499 | — |
| SciCode | 53.1% | — |
| LiveBench Coding | — | 46.4% |
| ALE-Bench | 911.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.5 Flash: 24.7 (#114), Grok-2 (Dec 2024): —
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| APEX-Agents | 27.5% | — |
| GBAEval | 6.7% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |
Reasoning Gemini 3.5 Flash leads
Gemini 3.5 Flash: 62.8 (#18), Grok-2 (Dec 2024): 16.9 (#299)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | 76.7% | 22.7% |
| LMArena Hard Prompts | 1488 | 1272 |
| DTBench | 94.7% | 65.2% |
| Epoch Capabilities Index | 154.46 | 130.48 |
| ARC-AGI-2 | 72.1% | — |
| NYT Connections (extended) | 92.6% | — |
| ARC-AGI-1 | 92.5% | — |
| CritPt | 13.1% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| EBR-Bench | 4.8% | — |
| LiveBench Reasoning | — | 54.8% |
| Mystery Game Puzzles | 32% | — |
| LiveBench Data Analysis | — | 54.5% |
| LMCA | 47.1% | — |
| Surface Evolver Bench | 58.1% | — |
| ForecastBench | 59 | — |
| LiveBench | — | 54.3% |
Math Gemini 3.5 Flash leads
Gemini 3.5 Flash: 60.7 (#36), Grok-2 (Dec 2024): 20.8 (#284)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 95.6% | 11.5% |
| LMArena Math | 1504 | 1283 |
| FrontierMath (Feb 2025 set) | 39% | 0.7% |
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| ProofBench | 31% | — |
| LiveBench Math | — | 54.9% |
| MATH Level 5 | — | 63.5% |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Gemini 3.5 Flash leads
Gemini 3.5 Flash: 66.3 (#11), Grok-2 (Dec 2024): 29.8 (#233)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 92.8% | 53.8% |
| LMArena Expert | 1495 | 1254 |
| SimpleQA Verified | 66.2% | — |
| Confabulations | — | 20.1% |
Multimodal Not comparable
Gemini 3.5 Flash: 45.7 (#15), Grok-2 (Dec 2024): —
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Vision | 1310 | — |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |
Multilingual Gemini 3.5 Flash leads
Gemini 3.5 Flash: 57.0 (#13), Grok-2 (Dec 2024): 43.1 (#188)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | 1476 | 1282 |
| LMArena Chinese | 1526 | 1289 |
| LMArena French | 1490 | 1318 |
| LMArena German | 1492 | 1287 |
| LMArena Japanese | 1486 | 1244 |
| LMArena Korean | 1451 | 1237 |
| LMArena Russian | 1493 | 1286 |
| LMArena Spanish | 1480 | 1281 |
Instruction Following Gemini 3.5 Flash leads
Gemini 3.5 Flash: 77.0 (#30), Grok-2 (Dec 2024): 66.9 (#202)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Instruction Following | 1467 | 1270 |
| LiveBench Instruction Following | — | 69.6% |
Long Context Gemini 3.5 Flash leads
Gemini 3.5 Flash: 45.4 (#38), Grok-2 (Dec 2024): 38.8 (#190)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | 1482 | 1276 |
Writing & Preference Gemini 3.5 Flash leads
Gemini 3.5 Flash: 65.5 (#47), Grok-2 (Dec 2024): 48.6 (#198)
| Benchmark | Gemini 3.5 Flash | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | 1482 | 1305 |
| LMArena Creative Writing | 1470 | 1284 |
| LMArena Multi-Turn | 1481 | 1290 |
| Short-Story Creative Writing | — | 63.6% |
| EQ-Bench 4 | 1087 | — |
| LiveBench Language | — | 45.6% |
Frequently asked questions
Is Gemini 3.5 Flash better than Grok-2 (Dec 2024)?
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 33.7 on the Noometry Index.
Is Gemini 3.5 Flash or Grok-2 (Dec 2024) better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 33.3 in the Noometry coding category.
How many benchmarks do Gemini 3.5 Flash and Grok-2 (Dec 2024) share?
24 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Grok-2 (Dec 2024) has 34.