Model comparison
Gemini 4 Argon vs Step 5 Preview
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 47.9 on the Noometry Index.
Last verified . 17 shared benchmarks.
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StepFunSummary
- They share 17 benchmarks with published results for both. Gemini 4 Argon scores higher in 9 categories and Step 5 Preview in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 4 Argon leads 73.9 to 46.1.
- The biggest single-benchmark swing is ProofBench: 99% for Gemini 4 Argon and 42% for Step 5 Preview.
Side by side
| Gemini 4 Argon | Step 5 Preview | |
|---|---|---|
| Provider | StepFun | |
| Noometry Index | 56.5 | 47.9 |
| Released | 2026-09-30 | 2026-09-16 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 21 | 18 |
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Category by category
Coding Gemini 4 Argon leads
Gemini 4 Argon: 62.0 (#9), Step 5 Preview: 51.8 (#36)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena WebDev | 1678 | 1564 |
| SciCode | 61.8% | 58.9% |
| LMArena Coding | 1550 | 1480 |
| FrontierSWE | 55% | — |
Agentic & Tool Use Not comparable
Gemini 4 Argon: 49.2 (#8), Step 5 Preview: —
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| APEX-Agents | 82.2% | — |
| Vending-Bench 2 | 13,718 | — |
Reasoning Gemini 4 Argon leads
Gemini 4 Argon: 44.2 (#47), Step 5 Preview: 40.0 (#57)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| CritPt | 27.1% | 20.9% |
| LMArena Hard Prompts | 1548 | 1465 |
Math Gemini 4 Argon leads
Gemini 4 Argon: 73.9 (#17), Step 5 Preview: 46.1 (#72)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| ProofBench | 99% | 42% |
| LMArena Math | 1536 | 1470 |
Knowledge Gemini 4 Argon leads
Gemini 4 Argon: 43.9 (#89), Step 5 Preview: 41.2 (#112)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1553 | 1470 |
Multimodal Gemini 4 Argon leads
Gemini 4 Argon: 46.5 (#14), Step 5 Preview: 41.0 (#41)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |
| Blueprint-Bench 2 | 54.4% | — |
Multilingual Gemini 4 Argon leads
Gemini 4 Argon: 60.3 (#1), Step 5 Preview: 53.8 (#54)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1523 | 1432 |
| LMArena Chinese | 1610 | 1519 |
| LMArena Russian | 1537 | 1436 |
| LMArena Spanish | 1497 | 1439 |
Instruction Following Gemini 4 Argon leads
Gemini 4 Argon: 80.1 (#2), Step 5 Preview: 76.0 (#50)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1538 | 1444 |
Long Context Gemini 4 Argon leads
Gemini 4 Argon: 47.6 (#15), Step 5 Preview: 44.5 (#64)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1549 | 1455 |
Writing & Preference Gemini 4 Argon leads
Gemini 4 Argon: 71.4 (#19), Step 5 Preview: 62.8 (#71)
| Benchmark | Gemini 4 Argon | Step 5 Preview |
|---|---|---|
| LMArena Text | 1534 | 1442 |
| LMArena Creative Writing | 1531 | 1410 |
| LMArena Multi-Turn | 1557 | 1447 |
Frequently asked questions
Is Gemini 4 Argon better than Step 5 Preview?
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 47.9 on the Noometry Index.
Is Gemini 4 Argon or Step 5 Preview better for coding?
Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 51.8 in the Noometry coding category.
How many benchmarks do Gemini 4 Argon and Step 5 Preview share?
17 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and Step 5 Preview has 18.