# Grok 4.3 vs Phi-3.5-mini

> Side-by-side benchmark comparison for Grok 4.3 and Phi-3.5-mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-3-vs-phi-3-5-mini
- Last updated: October 14, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Grok 4.3 and Phi-3.5-mini.

## Summary

- Grok 4.3 and Phi-3.5-mini do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Grok 4.3 | Phi-3.5-mini |
|----------|----------|----------|
| Creator | xAI | Microsoft |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Independent public score (not head-to-head) | 53.19 | null |
| Benchmarks Covered | 9 | 8 |
| Pricing (input/output) | $1.25 / $2.50 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 28.7 (Supported · #94/124)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 43.86% | Coming soon | Coming soon |
| ResearchClawBench | 12.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 41.9% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 26.6 (Supported · #102/148)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench (Vals) | 84.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 71.4% | Coming soon | Coming soon |
| HumanEval | Coming soon | 62.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 70 (Unranked · 2 rankable rows)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| BBH | Coming soon | 69% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 78.8 (#20/54)
- Phi-3.5-mini public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 54.9 (Supported · #60/181)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 91.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 85.8% | Coming soon | Coming soon |
| MMLU | Coming soon | 69% | Coming soon |
| MMLU-Pro | Coming soon | 47.4% | Coming soon |
| GPQA | Coming soon | 30.4% | Coming soon |
| MMMLU | Coming soon | 55.4% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: Coming soon
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| MGSM | Coming soon | 47.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 97.1 (#1/128)
- Phi-3.5-mini public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Grok 4.3 public-lane score: 51.4 (Unranked · 2 rankable rows)
- Phi-3.5-mini public-lane score: Coming soon

| Benchmark | Grok 4.3 | Phi-3.5-mini | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 42.807% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 14.634% | Coming soon | Coming soon |
| GSM8K | Coming soon | 86.2% | Coming soon |

## FAQ

### Can I compare Grok 4.3 and Phi-3.5-mini on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Grok 4.3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-4-3)
- [Phi-3.5-mini vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-phi-3-5-mini)
- [Grok 4.3 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-grok-4-3)
- [Phi-3.5-mini vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-phi-3-5-mini)

## Explore More

- [Grok 4.3 profile](/models/grok-4-3)
- [Phi-3.5-mini profile](/models/phi-3-5-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)