Gemini 4 Argon vs Grok 4.20
Gemini 4 Argon 
Grok 4.20 Verdict
- Gemini 4 Argon (high) leads on quality: 70.0 vs 59.0.
- Gemini 4 Argon (high) is stronger in agents & tools, coding, composite, human preference, knowledge, long context, maths, reasoning.
- Grok 4.20 (thinking) is stronger in instruction following, multimodal.
- Grok 4.20 (thinking) is 1.3× cheaper ($3.00 vs $4.00 per 1M blended).
| Metric | Gemini 4 Argon (high) | Grok 4.20 (thinking) |
|---|---|---|
| BenchLeader Index | 70.0 | 59.0 |
| Agents & tools score | 67.5 | 51.7 |
| Coding score | 72.1 | 53.9 |
| Composite score | 89.2 | 58.5 |
| Human preference score | 73.2 | 66.6 |
| Knowledge score | 75.7 | 56.2 |
| Long context score | 65.0 | 59.5 |
| Maths score | 71.9 | 54.4 |
| Reasoning score | 82.0 | 59.4 |
| Instruction following score | – | 79.9 |
| Multimodal score | – | 58.8 |
| Blended price $/M | $4.00 | $3.00 |
| Output speed | – | 103 tok/s |
| Time to first answer | – | 18.5 s |
| Context window | 1M | 2M |
| GPQA Diamond | – | 89.3% |
| FrontierMath Tiers 1–3 | – | 44.9% |
| FrontierMath Tier 4 | – | 17.1% |
| OTIS Mock AIME | – | 92.2% |
| SimpleQA Verified | – | 30.2% |
| SciCode | 61.8% | – |
| ProofBench | – | 14.0% |
| LMArena Text | 1525 | 1472 |
| LMArena Hard Prompts | 1551 | 1489 |
| LMArena Coding | 1562 | 1511 |
| LMArena WebDev | 1678 | 1375 |
| LMArena Vision | – | 1263 |
| LMArena Agent | 9.3 | – |
| AA Intelligence Index v4.3.2 | 52.6 | 25.7 |
| IFBench | – | 82.9% |
| AA-LCR | 79.7% | 69.0% |
| MMMU-Pro | – | 74.6% |
| AA-Omniscience | 42.4 | 14.8 |
| Terminal-Bench Hard | – | 40.9% |
| GPQA Diamond (AA) | – | 91.1% |
| Humanity's Last Exam (AA) | 57.1% | 34.5% |
| SciCode (AA) | 61.8% | – |
| τ²-Bench Telecom (AA) | – | 96.5% |
| AIME (Vals) | – | 96.5% |
| LiveCodeBench | – | 84.3% |
| MMLU-Pro | – | 86.3% |
| IOI | 100.0% | – |
| LegalBench | 88.3% | 77.7% |
| CorpFin | – | 63.7% |
| TaxEval | – | 74.1% |
| MedQA | – | 94.5% |
| Terminal-Bench 2.1 (Vals) | – | 44.2% |
| SWE-bench (Vals) | – | 72.2% |
| GPQA Diamond (Vals) | – | 88.6% |
| Vals Index | 68.9 | – |
| Kagi LLM Benchmark | – | 75.0% |
| ARC-AGI-1 | – | 89.5% |
| ARC-AGI-2 | – | 65.1% |
| ARC-AGI-3 | – | 0.1% |
| CritPt | 27.1% | 6.6% |
| GDPval-AA v2.1 | 56.3% | – |
| APEX-Agents (AA) | – | 14.2% |
| BioMysteryBench | 76.3% | – |
| CaseLaw v2 | – | 54.5% |
| Code Migration | 68.2% | 0.3% |
| CUA-bench | 4.8% | – |
| CyberBench | 77.9% | – |
| Excel Modeling Benchmark | 75.2% | 11.7% |
| Finance Agent v2 | 65.4% | 28.5% |
| Harvey's Legal Agent Benchmark | 19.6% | 0.0% |
| Legal Research Bench | 54.8% | 13.9% |
| MedCode | 58.8% | 32.2% |
| MedScribe | 87.4% | 63.4% |
| MMMU-Pro (Vals) | – | 83.5% |
| MortgageTax | – | 45.4% |
| MysteryMechanism | 45.5% | – |
| ProgramBench | 2.5% | – |
| Public Benefits Bench | 69.8% | – |
| SAGE | 53.6% | 38.2% |
| SREBench | 44.3% | – |
| Tax Agent Bench | 76.2% | 31.2% |
| Terminal-Bench 2.0 (Vals) | – | 40.5% |
| Terminal-Bench 4.0 (Vals) | 57.6% | – |
| Terminal-Bench Science | 44.3% | – |
| Vals Multimodal Index | – | 39.1% |
| Vibe Code Bench v1.1 | 91.9% | 4.1% |
| LMArena Maths | 1528 | 1465 |
| LMArena Creative Writing | 1519 | 1445 |
| LMArena Instruction Following | 1529 | 1447 |
| LMArena Multi-turn | 1553 | 1479 |
| LMArena Longer Queries | 1545 | 1466 |
| LMArena Document | – | 1439 |
| Chess Puzzles | – | 24.0% |
| ForecastBench | – | 60.7% |
| FrontierSWE | 55.0% | – |
| Terminal-Bench 4.0 (AA) | 57.1% | – |
| AutomationBench | 77.5% | – |
| GDP.pdf | 21.8% | – |
| AA-Omniscience: accuracy | 49.9% | 28.9% |
| AA-Omniscience: non-hallucination | 84.9% | 82.6% |
| AA-Briefcase v1.1 | 1488 | – |
Data as of 2026-10-11. Best configuration of each model; every score links to its source on the model pages.
Gemini 4 Argon vs Grok 4.20: questions
- Is Gemini 4 Argon better than Grok 4.20?
- Gemini 4 Argon (high) leads on quality: 70.0 vs 59.0. The BenchLeader Index combines every independent quality benchmark; Gemini 4 Argon (high) is ahead overall as of 2026-10-11, but check the category scores for your use.
- Is Gemini 4 Argon better than Grok 4.20 for coding?
- Gemini 4 Argon scores higher in coding (72 vs 54 on the category index, where 50 is average).
- Is Gemini 4 Argon better than Grok 4.20 for agentic tasks?
- Gemini 4 Argon scores higher in agentic tasks (68 vs 52 on the category index, where 50 is average).
- Which is cheaper, Gemini 4 Argon or Grok 4.20?
- Grok 4.20 is cheaper: $3.00 against $4.00 per million tokens, blended at three input tokens per output token.
- Which has the larger context window?
- Grok 4.20 accepts more context: 2M against 1M tokens.