Model comparison

Grok 4.20 Multi-Agent vs Ministral 8B

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 28.2 on the Noometry Index. Ministral 8B costs 10× 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. 12 shared benchmarks.

Grok 4.20 Multi-Agent xAI

46.2

Rank #65 Confirmed

Ministral 8B

Mistral AI

28.2

Rank #325 Confirmed

Summary

They share 12 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 8 categories and Ministral 8B in 0 categories; 8 gaps are clear of the uncertainty.
The widest gap is in knowledge, where Grok 4.20 Multi-Agent leads 40.4 to 12.6.
Ministral 8B is cheaper at $0.15 / $0.15 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 262K.
Ministral 8B has downloadable open weights; the other is API-only.

Side by side

Grok 4.20 Multi-Agent and Ministral 8B specifications
	Grok 4.20 Multi-Agent	Ministral 8B
Provider	xAI	Mistral AI
Noometry Index	46.2	28.2
Released	2026-03-09	2024-10-01
Weights	Proprietary	Open
Context window	1M	262K
Max output	30K	262K
Input $ / M tokens	$1.25	$0.15
Output $ / M tokens	$2.50	$0.15
Results tracked	20	17

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Category by category

Coding Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 43.0 (#92), Ministral 8B: 35.0 (#230)

Coding benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Coding	1457	1202

Agentic & Tool Use Not comparable

Grok 4.20 Multi-Agent: —, Ministral 8B: 16.4 (#148)

Agentic & Tool Use benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
Berkeley Function Calling Leaderboard	—	11.1%
LMArena Search	1204	—

Reasoning Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 43.9 (#48), Ministral 8B: 18.4 (#281)

Reasoning benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Hard Prompts	1448	1191
NYT Connections (extended)	89.6%	—
DTBench	—	45.7%

Math Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 39.4 (#104), Ministral 8B: 25.7 (#267)

Math benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Math	1442	1188
MATH Level 5	—	14.9%

Knowledge Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 40.4 (#119), Ministral 8B: 12.6 (#297)

Knowledge benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Expert	1445	1170
GPQA Diamond	—	27.1%
Vectara Hallucination Rate	—	7.4%

Multimodal Not comparable

Grok 4.20 Multi-Agent: 40.5 (#48), Ministral 8B: —

Multimodal benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Vision	1259	—

Multilingual Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 54.4 (#43), Ministral 8B: 35.1 (#247)

Multilingual benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Non-English	1440	1165
LMArena Chinese	1475	1193
LMArena Russian	1457	1195
LMArena French	1466	—
LMArena German	1456	—
LMArena Japanese	1405	—
LMArena Korean	1416	—
LMArena Spanish	1447	—

Instruction Following Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 74.8 (#84), Ministral 8B: 60.5 (#250)

Instruction Following benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Instruction Following	1420	1161

Long Context Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 43.7 (#88), Ministral 8B: 36.7 (#227)

Long Context benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Longer Query	1431	1212

Writing & Preference Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 64.0 (#59), Ministral 8B: 39.6 (#246)

Writing & Preference benchmarks
Benchmark	Grok 4.20 Multi-Agent	Ministral 8B
LMArena Text	1450	1191
LMArena Creative Writing	1436	1175
LMArena Multi-Turn	1452	1166

Frequently asked questions

Is Grok 4.20 Multi-Agent better than Ministral 8B?

Which is cheaper, Grok 4.20 Multi-Agent or Ministral 8B?

Ministral 8B is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

Is Grok 4.20 Multi-Agent or Ministral 8B better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 43.0 versus 35.0 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 Ministral 8B share?

12 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Ministral 8B has 17.