Model comparison
Grok 4.20 Multi-Agent vs Qwen3.6 Max Preview
Qwen3.6 Max Preview is the stronger model overall, scoring 51.5 to 46.2 on the Noometry Index. Grok 4.20 Multi-Agent costs 1.9× less per token, which makes it the better buy when Qwen3.6 Max Preview's lead doesn't matter for your workload.
Last verified . 15 shared benchmarks.
Alibaba (Qwen)Summary
- They share 15 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 3 categories and Qwen3.6 Max Preview in 5 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.6 Max Preview leads 57.6 to 40.4.
- The biggest single-benchmark swing is NYT Connections (extended): 89.6% for Grok 4.20 Multi-Agent and 74.1% for Qwen3.6 Max Preview.
- Grok 4.20 Multi-Agent is cheaper at $1.25 / $2.50 per million input/output tokens, against $1.30 / $7.80 for Qwen3.6 Max Preview.
- Grok 4.20 Multi-Agent accepts more context: 1M tokens versus 262K.
Side by side
| Grok 4.20 Multi-Agent | Qwen3.6 Max Preview | |
|---|---|---|
| Provider | xAI | Alibaba (Qwen) |
| Noometry Index | 46.2 | 51.5 |
| Released | 2026-03-09 | 2026-04-20 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 262K |
| Max output | 30K | 66K |
| Input $ / M tokens | $1.25 | $1.30 |
| Output $ / M tokens | $2.50 | $7.80 |
| Results tracked | 20 | 29 |
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Category by category
Coding Qwen3.6 Max Preview leads
Grok 4.20 Multi-Agent: 43.0 (#92), Qwen3.6 Max Preview: 48.7 (#54)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Coding | 1457 | 1471 |
| SWE-bench Verified | — | 76.7% |
| LMArena WebDev | — | 1482 |
Agentic & Tool Use Not comparable
Grok 4.20 Multi-Agent: —, Qwen3.6 Max Preview: —
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Search | 1204 | — |
| Vending-Bench 2 | — | 4,254 |
Reasoning Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 43.9 (#48), Qwen3.6 Max Preview: 41.7 (#53)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| NYT Connections (extended) | 89.6% | 74.1% |
| LMArena Hard Prompts | 1448 | 1457 |
| SimpleBench | — | 63% |
| Chess Puzzles | — | 20% |
| Mystery Game Puzzles | — | 19% |
| DTBench | — | 87.2% |
| LMCA | — | 42.5% |
| Epoch Capabilities Index | — | 149.24 |
Math Qwen3.6 Max Preview leads
Grok 4.20 Multi-Agent: 39.4 (#104), Qwen3.6 Max Preview: 54.1 (#46)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Math | 1442 | 1465 |
| OTIS Mock AIME 2024-2025 | — | 91.1% |
| FrontierMath (Feb 2025 set) | — | 23.1% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Qwen3.6 Max Preview leads
Grok 4.20 Multi-Agent: 40.4 (#119), Qwen3.6 Max Preview: 57.6 (#39)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Expert | 1445 | 1478 |
| GPQA Diamond | — | 87.4% |
| SimpleQA Verified | — | 52% |
Multimodal Not comparable
Grok 4.20 Multi-Agent: 40.5 (#48), Qwen3.6 Max Preview: —
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Vision | 1259 | — |
Multilingual Too close to call
Grok 4.20 Multi-Agent: 54.4 (#43), Qwen3.6 Max Preview: 54.2 (#48)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Non-English | 1440 | 1437 |
| LMArena Chinese | 1475 | 1487 |
| LMArena French | 1466 | 1449 |
| LMArena Russian | 1457 | 1445 |
| LMArena Spanish | 1447 | 1454 |
| LMArena German | 1456 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1416 | — |
Instruction Following Too close to call
Grok 4.20 Multi-Agent: 74.8 (#84), Qwen3.6 Max Preview: 75.7 (#55)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Instruction Following | 1420 | 1438 |
Long Context Too close to call
Grok 4.20 Multi-Agent: 43.7 (#88), Qwen3.6 Max Preview: 44.6 (#61)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Longer Query | 1431 | 1457 |
Writing & Preference Too close to call
Grok 4.20 Multi-Agent: 64.0 (#59), Qwen3.6 Max Preview: 63.8 (#60)
| Benchmark | Grok 4.20 Multi-Agent | Qwen3.6 Max Preview |
|---|---|---|
| LMArena Text | 1450 | 1447 |
| LMArena Creative Writing | 1436 | 1435 |
| LMArena Multi-Turn | 1452 | 1456 |
Frequently asked questions
Is Grok 4.20 Multi-Agent better than Qwen3.6 Max Preview?
Qwen3.6 Max Preview is the stronger model overall, scoring 51.5 to 46.2 on the Noometry Index. Grok 4.20 Multi-Agent costs 1.9× less per token, which makes it the better buy when Qwen3.6 Max Preview's lead doesn't matter for your workload.
Which is cheaper, Grok 4.20 Multi-Agent or Qwen3.6 Max Preview?
Grok 4.20 Multi-Agent is cheaper. It lists at $1.25 per million input tokens and $2.50 per million output tokens; Qwen3.6 Max Preview lists at $1.30 and $7.80.
Is Grok 4.20 Multi-Agent or Qwen3.6 Max Preview better for coding?
Qwen3.6 Max Preview scores higher on coding benchmarks: 48.7 versus 43.0 in the Noometry coding category.
Which has the bigger context window?
Grok 4.20 Multi-Agent does, with 1M tokens against 262K.
How many benchmarks do Grok 4.20 Multi-Agent and Qwen3.6 Max Preview share?
15 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Qwen3.6 Max Preview has 29.