Model comparison

Grok 4.20 Multi-Agent vs Nova 2 Lite

Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 39.0 on the Noometry Index. Nova 2 Lite costs 1.8× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

Last verified October 10, 2026. 17 shared benchmarks.

Grok 4.20 Multi-Agent xAI

45.5

Rank #62 Confirmed

Nova 2 Lite Amazon

39.0

Rank #161 Confirmed

Summary

They share 17 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 7 categories and Nova 2 Lite in 1 category; 8 gaps are clear of the uncertainty.
The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 26.4.
Nova 2 Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.

Side by side

Grok 4.20 Multi-Agent and Nova 2 Lite specifications
	Grok 4.20 Multi-Agent	Nova 2 Lite
Provider	xAI	Amazon
Noometry Index	45.5	39.0
Released	2026-03-09	2025-12-01
Weights	Proprietary	Proprietary
Context window	1M	1M
Max output	30K	64K
Input $ / M tokens	$1.25	$0.30
Output $ / M tokens	$2.50	$2.50
Results tracked	20	19

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Category by category

Coding Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 42.4 (#91), Nova 2 Lite: 40.1 (#131)

Coding benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Coding	1458	1386

Agentic & Tool Use Not comparable

Grok 4.20 Multi-Agent: —, Nova 2 Lite: 23.9 (#114)

Agentic & Tool Use benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
Berkeley Function Calling Leaderboard	—	27.1%
LMArena Search	1204	—

Reasoning Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 42.4 (#44), Nova 2 Lite: 26.4 (#120)

Reasoning benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Hard Prompts	1448	1364
NYT Connections (extended)	89.6%	—

Math Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 36.6 (#106), Nova 2 Lite: 34.8 (#154)

Math benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Math	1441	1359

Knowledge Nova 2 Lite leads

Grok 4.20 Multi-Agent: 39.7 (#116), Nova 2 Lite: 42.5 (#88)

Knowledge benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Expert	1445	1360
Vectara Hallucination Rate	—	5.1%

Multimodal Not comparable

Grok 4.20 Multi-Agent: 39.8 (#44), Nova 2 Lite: —

Multimodal benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Vision	1259	—

Multilingual Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 54.6 (#40), Nova 2 Lite: 47.3 (#148)

Multilingual benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Non-English	1440	1337
LMArena Chinese	1475	1364
LMArena French	1467	1381
LMArena German	1456	1343
LMArena Japanese	1405	1273
LMArena Korean	1416	1284
LMArena Russian	1457	1343
LMArena Spanish	1447	1372

Instruction Following Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 75.0 (#80), Nova 2 Lite: 70.7 (#156)

Instruction Following benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Instruction Following	1420	1335

Long Context Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 43.7 (#84), Nova 2 Lite: 40.6 (#145)

Long Context benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Longer Query	1430	1335

Writing & Preference Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 64.1 (#57), Nova 2 Lite: 54.1 (#150)

Writing & Preference benchmarks
Benchmark	Grok 4.20 Multi-Agent	Nova 2 Lite
LMArena Text	1450	1362
LMArena Creative Writing	1435	1291
LMArena Multi-Turn	1451	1338

Frequently asked questions

Is Grok 4.20 Multi-Agent better than Nova 2 Lite?

Which is cheaper, Grok 4.20 Multi-Agent or Nova 2 Lite?

Nova 2 Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

Is Grok 4.20 Multi-Agent or Nova 2 Lite better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 42.4 versus 40.1 in the Noometry coding category.

Which has the bigger context window?

Both accept 1M tokens.

How many benchmarks do Grok 4.20 Multi-Agent and Nova 2 Lite share?

17 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Nova 2 Lite has 19.