# Grok 3 [Beta] vs Phi-4-reasoning-plus

> Side-by-side benchmark comparison for Grok 3 [Beta] and Phi-4-reasoning-plus across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Phi-4-reasoning-plus leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Phi-4-reasoning-plus has the higher overall point estimate 50 to 41.03. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is AIME 2024 in Mathematics, with scores of 52.2% and 81.3%.
- Grok 3 [Beta] also has the larger context window at 128K.

## Model Snapshot

| Property | Grok 3 [Beta] | Phi-4-reasoning-plus |
|----------|----------|----------|
| Creator | xAI | Microsoft |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 32K |
| Overall Score | 41.03 | null |
| Benchmarks Covered | 5 | 6 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | N/A |

## Category Breakdown

### Coding

- Winner: Not comparable
- Grok 3 [Beta] public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Grok 3 [Beta] | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 57% | 53.1% | Grok 3 [Beta] |

### Knowledge

- Winner: Not comparable
- Grok 3 [Beta] public-lane score: 41.2 (Estimated · #110/181)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Grok 3 [Beta] | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 75.4% | 68.9% | Grok 3 [Beta] |
| MMLU-Pro | 79.9% | 76% | Grok 3 [Beta] |
| SimpleQA | 43.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Grok 3 [Beta] public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Grok 3 [Beta] | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 84.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- Grok 3 [Beta] public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Grok 3 [Beta] | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 52.2% | 81.3% | Phi-4-reasoning-plus |
| AIME 2025 | Coming soon | 78% | Coming soon |

## FAQ

### Which is better overall, Grok 3 [Beta] or Phi-4-reasoning-plus?

Phi-4-reasoning-plus has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does Grok 3 [Beta] cover on BenchLM?

Grok 3 [Beta] currently has 5 sourced benchmark scores on BenchLM.

### How many benchmarks does Phi-4-reasoning-plus cover on BenchLM?

Phi-4-reasoning-plus currently has 6 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Grok 3 [Beta] vs Phi-4-reasoning](/compare/grok-3-beta-vs-phi-4-reasoning)
- [Phi-4-reasoning-plus vs Phi-4-reasoning](/compare/phi-4-reasoning-vs-phi-4-reasoning-plus)
- [Grok 3 [Beta] vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-3-beta)
- [Phi-4-reasoning-plus vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-phi-4-reasoning-plus)

## Explore More

- [Grok 3 [Beta] profile](/models/grok-3-beta)
- [Phi-4-reasoning-plus profile](/models/phi-4-reasoning-plus)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)