Model comparison
Gemini 4 Argon vs Grok 4 Fast
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 39.4 on the Noometry Index.
Last verified . 14 shared benchmarks.
GoogleSummary
- They share 14 benchmarks with published results for both. Gemini 4 Argon scores higher in 8 categories and Grok 4 Fast in 1 category; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 4 Argon leads 73.9 to 38.9.
Side by side
| Gemini 4 Argon | Grok 4 Fast | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 56.5 | 39.4 |
| Released | 2026-09-30 | 2025-09-19 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 21 | 30 |
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Category by category
Coding Gemini 4 Argon leads
Gemini 4 Argon: 62.0 (#9), Grok 4 Fast: 32.5 (#271)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena WebDev | 1678 | 1159 |
| LMArena Coding | 1550 | 1429 |
| FrontierSWE | 55% | — |
| SciCode | 61.8% | — |
| WeirdML | — | 42.9% |
Agentic & Tool Use Gemini 4 Argon leads
Gemini 4 Argon: 49.2 (#8), Grok 4 Fast: 29.5 (#86)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| APEX-Agents | 82.2% | — |
| τ²-bench Banking | — | 15.7% |
| Cybench | — | 30% |
| LMArena Search | — | 1171 |
| Vending-Bench 2 | 13,718 | — |
Reasoning Gemini 4 Argon leads
Gemini 4 Argon: 44.2 (#47), Grok 4 Fast: 22.2 (#201)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Hard Prompts | 1548 | 1412 |
| ARC-AGI-2 | — | 5.3% |
| Kagi LLM Benchmark | — | 66.1% |
| ARC-AGI-1 | — | 48.5% |
| CritPt | 27.1% | — |
| DTBench | — | 82.7% |
| Epoch Capabilities Index | — | 144.2 |
| ForecastBench | — | 60.5 |
Math Gemini 4 Argon leads
Gemini 4 Argon: 73.9 (#17), Grok 4 Fast: 38.9 (#123)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Math | 1536 | 1419 |
| ProofBench | 99% | — |
Knowledge Gemini 4 Argon leads
Gemini 4 Argon: 43.9 (#89), Grok 4 Fast: 32.0 (#214)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Expert | 1553 | 1411 |
| Vectara Hallucination Rate | — | 19.7% |
Multimodal Not comparable
Gemini 4 Argon: 46.5 (#14), Grok 4 Fast: —
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| Blueprint-Bench 2 | 54.4% | — |
Multilingual Gemini 4 Argon leads
Gemini 4 Argon: 60.3 (#1), Grok 4 Fast: 51.3 (#111)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Non-English | 1523 | 1396 |
| LMArena Chinese | 1610 | 1457 |
| LMArena Russian | 1537 | 1389 |
| LMArena Spanish | 1497 | 1415 |
| LMArena French | — | 1431 |
| LMArena German | — | 1383 |
| LMArena Japanese | — | 1352 |
| LMArena Korean | — | 1357 |
Instruction Following Gemini 4 Argon leads
Gemini 4 Argon: 80.1 (#2), Grok 4 Fast: 73.2 (#121)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Instruction Following | 1538 | 1387 |
Long Context Grok 4 Fast leads
Gemini 4 Argon: 47.6 (#15), Grok 4 Fast: 63.2 (#3)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Longer Query | 1549 | 1415 |
| Fiction.LiveBench | — | 94.4% |
Writing & Preference Gemini 4 Argon leads
Gemini 4 Argon: 71.4 (#19), Grok 4 Fast: 60.0 (#102)
| Benchmark | Gemini 4 Argon | Grok 4 Fast |
|---|---|---|
| LMArena Text | 1534 | 1407 |
| LMArena Creative Writing | 1531 | 1387 |
| LMArena Multi-Turn | 1557 | 1414 |
Frequently asked questions
Is Gemini 4 Argon better than Grok 4 Fast?
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 39.4 on the Noometry Index.
Is Gemini 4 Argon or Grok 4 Fast better for coding?
Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 32.5 in the Noometry coding category.
How many benchmarks do Gemini 4 Argon and Grok 4 Fast share?
14 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and Grok 4 Fast has 30.