# Grok 4.20 Multi-Agent vs Step 3.7 Flash

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 36.5 on the Noometry Index. Step 3.7 Flash costs 3.8× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-20-multi-agent-vs-step-3-7-flash
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Grok 4.20 Multi-Agent scores higher in 2 categories and Step 3.7 Flash in 1 category; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 20.9.
- The biggest single-benchmark swing is NYT Connections (extended): 89.6% for Grok 4.20 Multi-Agent and 39.7% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
- Grok 4.20 Multi-Agent accepts more context: 1M tokens versus 256K.
- Step 3.7 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| Provider | xAI | StepFun |
| Noometry Index | 45.5 | 36.5 |
| Rank | 62 | 207 |
| Context | 1M | 256K |
| Input $/M | $1.25 | $0.18 |
| Output $/M | $2.50 | $1.11 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.20 Multi-Agent: 42.4 (#91)
- Step 3.7 Flash: 39.4 (#147)

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| SciCode | — | 40% |
| LMArena Coding | 1458 | — |
| ALE-Bench | — | 694.12 |

## Agentic & Tool Use

- Grok 4.20 Multi-Agent: —
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Search | 1204 | — |

## Reasoning

- Grok 4.20 Multi-Agent: 42.4 (#44)
- Step 3.7 Flash: 20.9 (#211)

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | 89.6% | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 1448 | — |

## Math

- Grok 4.20 Multi-Agent: 36.6 (#106)
- Step 3.7 Flash: 40.9 (#74)

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1441 | — |

## Knowledge

- Grok 4.20 Multi-Agent: 39.7 (#116)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1445 | — |

## Multimodal

- Grok 4.20 Multi-Agent: 39.8 (#44)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Vision | 1259 | — |

## Multilingual

- Grok 4.20 Multi-Agent: 54.6 (#40)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1440 | — |
| LMArena Chinese | 1475 | — |
| LMArena French | 1467 | — |
| LMArena German | 1456 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1416 | — |
| LMArena Russian | 1457 | — |
| LMArena Spanish | 1447 | — |

## Instruction Following

- Grok 4.20 Multi-Agent: 75.0 (#80)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1420 | — |

## Long Context

- Grok 4.20 Multi-Agent: 43.7 (#84)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1430 | — |

## Writing & Preference

- Grok 4.20 Multi-Agent: 64.1 (#57)
- Step 3.7 Flash: —

| Benchmark | Grok 4.20 Multi-Agent | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1450 | — |
| LMArena Creative Writing | 1435 | — |
| LMArena Multi-Turn | 1451 | — |

## FAQ

### Is Grok 4.20 Multi-Agent better than Step 3.7 Flash?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 36.5 on the Noometry Index. Step 3.7 Flash costs 3.8× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

### Which is cheaper, Grok 4.20 Multi-Agent or Step 3.7 Flash?

Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

### Is Grok 4.20 Multi-Agent or Step 3.7 Flash better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 42.4 versus 39.4 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.20 Multi-Agent does, with 1M tokens against 256K.

### How many benchmarks do Grok 4.20 Multi-Agent and Step 3.7 Flash share?

1 benchmark has published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Step 3.7 Flash has 5.