Model comparison
Gemini 4 Argon vs Mercury 2
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 39.1 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 7 categories and Mercury 2 in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where Gemini 4 Argon leads 62.0 to 33.5.
- The biggest single-benchmark swing is CritPt: 27.1% for Gemini 4 Argon and 0.8% for Mercury 2.
Side by side
| Gemini 4 Argon | Mercury 2 | |
|---|---|---|
| Provider | Inception | |
| Noometry Index | 56.5 | 39.1 |
| Released | 2026-09-30 | 2026-02-20 |
| Weights | Proprietary | Proprietary |
| Context window | — | 128K |
| Max output | — | 50K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $0.75 |
| Results tracked | 21 | 17 |
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Category by category
Coding Gemini 4 Argon leads
Gemini 4 Argon: 62.0 (#9), Mercury 2: 33.5 (#255)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena WebDev | 1678 | 1171 |
| SciCode | 61.8% | 38.7% |
| LMArena Coding | 1550 | 1391 |
| FrontierSWE | 55% | — |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |
Agentic & Tool Use Not comparable
Gemini 4 Argon: 49.2 (#8), Mercury 2: —
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| APEX-Agents | 82.2% | — |
| Vending-Bench 2 | 13,718 | — |
Reasoning Gemini 4 Argon leads
Gemini 4 Argon: 44.2 (#47), Mercury 2: 23.8 (#170)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| CritPt | 27.1% | 0.8% |
| LMArena Hard Prompts | 1548 | 1362 |
Math Not comparable
Gemini 4 Argon: 73.9 (#17), Mercury 2: —
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| ProofBench | 99% | — |
| LMArena Math | 1536 | — |
Knowledge Gemini 4 Argon leads
Gemini 4 Argon: 43.9 (#89), Mercury 2: 36.2 (#172)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena Expert | 1553 | 1358 |
| Vectara Hallucination Rate | — | 12.3% |
Multimodal Not comparable
Gemini 4 Argon: 46.5 (#14), Mercury 2: —
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| Blueprint-Bench 2 | 54.4% | — |
Multilingual Gemini 4 Argon leads
Gemini 4 Argon: 60.3 (#1), Mercury 2: 46.6 (#157)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1523 | 1331 |
| LMArena Chinese | 1610 | 1417 |
| LMArena Russian | 1537 | 1304 |
| LMArena Spanish | 1497 | — |
Instruction Following Gemini 4 Argon leads
Gemini 4 Argon: 80.1 (#2), Mercury 2: 70.2 (#165)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1538 | 1329 |
Long Context Gemini 4 Argon leads
Gemini 4 Argon: 47.6 (#15), Mercury 2: 40.5 (#154)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1549 | 1330 |
Writing & Preference Gemini 4 Argon leads
Gemini 4 Argon: 71.4 (#19), Mercury 2: 53.8 (#155)
| Benchmark | Gemini 4 Argon | Mercury 2 |
|---|---|---|
| LMArena Text | 1534 | 1355 |
| LMArena Creative Writing | 1531 | 1289 |
| LMArena Multi-Turn | 1557 | 1358 |
Frequently asked questions
Is Gemini 4 Argon better than Mercury 2?
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 39.1 on the Noometry Index.
Is Gemini 4 Argon or Mercury 2 better for coding?
Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 33.5 in the Noometry coding category.
How many benchmarks do Gemini 4 Argon and Mercury 2 share?
14 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and Mercury 2 has 17.