Model comparison
Grok 4.20 Multi-Agent vs Nova Premier 1.0
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 37.7 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 22.3.
- Grok 4.20 Multi-Agent is cheaper at $1.25 / $2.50 per million input/output tokens, against $2.50 / $12.50 for Nova Premier 1.0.
Side by side
| Grok 4.20 Multi-Agent | Nova Premier 1.0 | |
|---|---|---|
| Provider | xAI | Amazon |
| Noometry Index | 45.5 | 37.7 |
| Released | 2026-03-09 | 2025-04-30 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 1M |
| Max output | 30K | 10K |
| Input $ / M tokens | $1.25 | $2.50 |
| Output $ / M tokens | $2.50 | $12.50 |
| Results tracked | 20 | 6 |
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Category by category
Coding Not comparable
Grok 4.20 Multi-Agent: 42.4 (#91), Nova Premier 1.0: —
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| LMArena Coding | 1458 | — |
Agentic & Tool Use Not comparable
Grok 4.20 Multi-Agent: —, Nova Premier 1.0: —
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| LMArena Search | 1204 | — |
Reasoning Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 42.4 (#44), Nova Premier 1.0: 22.3 (#182)
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| Kagi LLM Benchmark | — | 44.8% |
| NYT Connections (extended) | 89.6% | — |
| LMArena Hard Prompts | 1448 | — |
Math Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 36.6 (#106), Nova Premier 1.0: 31.5 (#194)
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| Omni-MATH | — | 35% |
| LMArena Math | 1441 | — |
Knowledge Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 39.7 (#116), Nova Premier 1.0: 35.4 (#176)
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| MMLU-Pro | — | 72.6% |
| GPQA (HELM) | — | 51.8% |
| LMArena Expert | 1445 | — |
Multimodal Not comparable
Grok 4.20 Multi-Agent: 39.8 (#44), Nova Premier 1.0: —
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| LMArena Vision | 1259 | — |
Multilingual Not comparable
Grok 4.20 Multi-Agent: 54.6 (#40), Nova Premier 1.0: —
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| 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 leads
Grok 4.20 Multi-Agent: 75.0 (#80), Nova Premier 1.0: 66.9 (#201)
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| IFEval | — | 80.3% |
| LMArena Instruction Following | 1420 | — |
Long Context Not comparable
Grok 4.20 Multi-Agent: 43.7 (#84), Nova Premier 1.0: —
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| LMArena Longer Query | 1430 | — |
Writing & Preference Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 64.1 (#57), Nova Premier 1.0: 51.0 (#174)
| Benchmark | Grok 4.20 Multi-Agent | Nova Premier 1.0 |
|---|---|---|
| LMArena Text | 1450 | — |
| LMArena Creative Writing | 1435 | — |
| WildBench | — | 78.8% |
| LMArena Multi-Turn | 1451 | — |
Frequently asked questions
Is Grok 4.20 Multi-Agent better than Nova Premier 1.0?
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 37.7 on the Noometry Index.
Which is cheaper, Grok 4.20 Multi-Agent or Nova Premier 1.0?
Grok 4.20 Multi-Agent is cheaper. It lists at $1.25 per million input tokens and $2.50 per million output tokens; Nova Premier 1.0 lists at $2.50 and $12.50.
Which has the bigger context window?
Both accept 1M tokens.
How many benchmarks do Grok 4.20 Multi-Agent and Nova Premier 1.0 share?
0 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Nova Premier 1.0 has 6.