Model comparison
Grok 4.20 Multi-Agent vs Grok Build 0.1
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 35.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 31.3.
- Grok Build 0.1 is cheaper at $1 / $2 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.
Side by side
| Grok 4.20 Multi-Agent | Grok Build 0.1 | |
|---|---|---|
| Provider | xAI | xAI |
| Noometry Index | 45.5 | 35.8 |
| Released | 2026-03-09 | 2026-04-16 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 256K |
| Max output | 30K | 256K |
| Input $ / M tokens | $1.25 | $1 |
| Output $ / M tokens | $2.50 | $2 |
| Results tracked | 20 | 3 |
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Category by category
Coding Too close to call
Grok 4.20 Multi-Agent: 42.4 (#91), Grok Build 0.1: 42.5 (#90)
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| SciCode | — | 50.2% |
| LMArena Coding | 1458 | — |
Agentic & Tool Use Not comparable
Grok 4.20 Multi-Agent: —, Grok Build 0.1: 22.5 (#122)
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| GBAEval | — | 2.4% |
| LMArena Search | 1204 | — |
Reasoning Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 42.4 (#44), Grok Build 0.1: 31.3 (#73)
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| NYT Connections (extended) | 89.6% | — |
| CritPt | — | 9.1% |
| LMArena Hard Prompts | 1448 | — |
Math Not comparable
Grok 4.20 Multi-Agent: 36.6 (#106), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Math | 1441 | — |
Knowledge Not comparable
Grok 4.20 Multi-Agent: 39.7 (#116), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Expert | 1445 | — |
Multimodal Not comparable
Grok 4.20 Multi-Agent: 39.8 (#44), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Vision | 1259 | — |
Multilingual Not comparable
Grok 4.20 Multi-Agent: 54.6 (#40), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| 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 Not comparable
Grok 4.20 Multi-Agent: 75.0 (#80), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Instruction Following | 1420 | — |
Long Context Not comparable
Grok 4.20 Multi-Agent: 43.7 (#84), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Longer Query | 1430 | — |
Writing & Preference Not comparable
Grok 4.20 Multi-Agent: 64.1 (#57), Grok Build 0.1: —
| Benchmark | Grok 4.20 Multi-Agent | Grok Build 0.1 |
|---|---|---|
| LMArena Text | 1450 | — |
| LMArena Creative Writing | 1435 | — |
| LMArena Multi-Turn | 1451 | — |
Frequently asked questions
Is Grok 4.20 Multi-Agent better than Grok Build 0.1?
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 35.8 on the Noometry Index.
Which is cheaper, Grok 4.20 Multi-Agent or Grok Build 0.1?
Grok Build 0.1 is cheaper. It lists at $1 per million input tokens and $2 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.
Is Grok 4.20 Multi-Agent or Grok Build 0.1 better for coding?
They score almost the same on coding (42.4 vs 42.5); test both on your own repository before choosing.
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 Grok Build 0.1 share?
0 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Grok Build 0.1 has 3.