# Grok 4.20 vs MiniMax M3.1 Flash

> Side-by-side benchmark comparison for Grok 4.20 and MiniMax M3.1 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-20-beta-vs-minimax-m3-1-flash
- Last updated: October 19, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Grok 4.20 and MiniMax M3.1 Flash share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- MiniMax M3.1 Flash has the lower published output-token price.
- Grok 4.20 has the larger published context window at 2M.

## Model Snapshot

| Property | Grok 4.20 | MiniMax M3.1 Flash |
|----------|----------|----------|
| Creator | xAI | MiniMax |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 2M | 1M |
| Independent public score (not head-to-head) | 57.43 | 67.05 |
| Benchmarks Covered | 24 | 14 |
| Pricing (input/output) | $1.25 / $2.50 | $0.15 / $0.60 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 25.2 (Supported · #106/130)
- MiniMax M3.1 Flash public-lane score: 63.9 (Estimated · #19/130)

| Benchmark | Grok 4.20 | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 47.1% | Coming soon | Coming soon |
| DeepSearchQA | 62.8% | Coming soon | Coming soon |
| Gert Labs | 38.36% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 44.2% | Coming soon | Coming soon |
| MazeBench | 0% | Coming soon | Coming soon |
| LOCA-Bench 256K | Coming soon | 60.3 | Coming soon |
| SWE Refactor Bench | Coming soon | 23.0 | Coming soon |
| AutomationBench | Coming soon | 62.2% | Coming soon |
| BankerToolBench | Coming soon | 76.2% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 38.10% | Coming soon |
| Agents' Last Exam | Coming soon | 29.6% | Coming soon |
| OSWorld 2.0 | Coming soon | 61.7% | Coming soon |
| CyberGym | Coming soon | 82.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 21.6 (Supported · #119/151)
- MiniMax M3.1 Flash public-lane score: 61.3 (Supported · #17/151)

| Benchmark | Grok 4.20 | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 74.2% | Coming soon | Coming soon |
| SWE-bench Verified | 76.7% | Coming soon | Coming soon |
| SWE-bench Pro | 51.8% | Coming soon | Coming soon |
| Vibe Code Bench | 4.06% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.3% | Coming soon | Coming soon |
| SWE-bench (Vals) | 72.2% | Coming soon | Coming soon |
| PostTrainBench v1.1 | Coming soon | 39.3% | Coming soon |
| DeepSWE | Coming soon | 73.7% | Coming soon |
| NL2Repo | Coming soon | 61.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 44.9 (Unranked · 2 rankable rows)
- MiniMax M3.1 Flash public-lane score: 80.6 (Unranked · 2 rankable rows)

| Benchmark | Grok 4.20 | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 53.3% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.1% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 53.4 (#48/55)
- MiniMax M3.1 Flash public-lane score: 73.5 (#30/55)

| Benchmark | Grok 4.20 | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 75.2% | Coming soon | Coming soon |
| CharXiv | 60.9% | 82.5% | MiniMax M3.1 Flash |
| ERQA | 54.1% | Coming soon | Coming soon |
| SimpleVQA | 57.4% | Coming soon | Coming soon |
| MedXpertQA (MM) | 65.8% | Coming soon | Coming soon |
| BabyVision w/ Python | Coming soon | 91.0% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Grok 4.20 public-lane score: 53.2 (Supported · #71/186)
- MiniMax M3.1 Flash public-lane score: 73.2 (Supported · #14/186)

| Benchmark | Grok 4.20 | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 88.5% | Coming soon | Coming soon |
| HLE w/o tools | 31.6% | 43.4% | MiniMax M3.1 Flash |
| HealthBench Hard | 20.3% | Coming soon | Coming soon |
| MedXpertQA (Text) | 50.2% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.3% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Grok 4.20 and MiniMax M3.1 Flash?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Grok 4.20 vs Grok 4.20 Multi-agent](/compare/grok-4-20-beta-vs-grok-4-20-multi-agent-beta)
- [MiniMax M3.1 Flash vs Grok 4.20 Multi-agent](/compare/grok-4-20-multi-agent-beta-vs-minimax-m3-1-flash)
- [Grok 4.20 vs MiniMax M3.1 Flash Preview](/compare/grok-4-20-beta-vs-minimax-m3-1-flash-preview)
- [MiniMax M3.1 Flash vs MiniMax M3.1 Flash Preview](/compare/minimax-m3-1-flash-vs-minimax-m3-1-flash-preview)

## Explore More

- [Grok 4.20 profile](/models/grok-4-20-beta)
- [MiniMax M3.1 Flash profile](/models/minimax-m3-1-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)