Model comparison
Gemini 3 Deep Think vs Grok 4.3
Grok 4.3 has enough public results to be ranked (#86); Gemini 3 Deep Think does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
GoogleSummary
- They share 1 benchmark with published results for both. Gemini 3 Deep Think scores higher in 1 category and Grok 4.3 in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 35.9.
- The biggest single-benchmark swing is CritPt: 25.7% for Gemini 3 Deep Think and 8% for Grok 4.3.
Side by side
| Gemini 3 Deep Think | Grok 4.3 | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 58.3 | 43.8 |
| Released | 2026-02-12 | 2026-04-17 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 30K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 3 | 40 |
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Category by category
Coding Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 41.6 (#121)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena WebDev | — | 1357 |
| SciCode | — | 47.3% |
| WeirdML | — | 49.9% |
| LMArena Coding | — | 1415 |
| ALE-Bench | — | 944.17 |
Agentic & Tool Use Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 27.7 (#99)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| GDP.pdf | — | 8% |
| LMArena Search | — | 1165 |
| Vending-Bench 2 | — | 35.26 |
Reasoning Gemini 3 Deep Think leads
Gemini 3 Deep Think: 70.2 (#14), Grok 4.3: 35.9 (#68)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| CritPt | 25.7% | 8% |
| ARC-AGI-2 | 84.6% | — |
| NYT Connections (extended) | — | 55.2% |
| ARC-AGI-1 | 96% | — |
| Chess Puzzles | — | 25% |
| LMArena Hard Prompts | — | 1396 |
| DTBench | — | 90.7% |
| LMCA | — | 38.3% |
| Epoch Capabilities Index | — | 149.16 |
| ForecastBench | — | 60.3 |
Math Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 46.0 (#74)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 42.8% |
| FrontierMath Tier 4 | — | 14.6% |
| OTIS Mock AIME 2024-2025 | — | 93.3% |
| ProofBench | — | 11% |
| LMArena Math | — | 1388 |
Knowledge Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 52.5 (#62)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| GPQA Diamond | — | 88.8% |
| SimpleQA Verified | — | 33.2% |
| LMArena Expert | — | 1385 |
Multimodal Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 31.6 (#104)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena Vision | — | 1229 |
| Blueprint-Bench 2 | — | 0% |
Multilingual Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 50.5 (#120)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena Non-English | — | 1385 |
| LMArena Chinese | — | 1422 |
| LMArena French | — | 1412 |
| LMArena German | — | 1395 |
| LMArena Japanese | — | 1379 |
| LMArena Korean | — | 1356 |
| LMArena Russian | — | 1399 |
| LMArena Spanish | — | 1398 |
Instruction Following Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 72.1 (#140)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena Instruction Following | — | 1366 |
Long Context Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 42.5 (#123)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena Longer Query | — | 1393 |
Writing & Preference Not comparable
Gemini 3 Deep Think: —, Grok 4.3: 58.5 (#118)
| Benchmark | Gemini 3 Deep Think | Grok 4.3 |
|---|---|---|
| LMArena Text | — | 1397 |
| LMArena Creative Writing | — | 1380 |
| EQ-Bench 4 | — | 1075 |
| LMArena Multi-Turn | — | 1406 |
Frequently asked questions
Is Gemini 3 Deep Think better than Grok 4.3?
Grok 4.3 has enough public results to be ranked (#86); Gemini 3 Deep Think does not yet, so treat this comparison as directional.
How many benchmarks do Gemini 3 Deep Think and Grok 4.3 share?
1 benchmark has published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and Grok 4.3 has 40.