# Mercury 2.5 vs Phi-4-reasoning-plus

> Side-by-side benchmark comparison for Mercury 2.5 and Phi-4-reasoning-plus across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mercury-2-5-vs-phi-4-reasoning-plus
- 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 Mercury 2.5 and Phi-4-reasoning-plus.

## Summary

- Mercury 2.5 and Phi-4-reasoning-plus 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 | Mercury 2.5 | Phi-4-reasoning-plus |
|----------|----------|----------|
| Creator | Inception | Microsoft |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 260K | 32K |
| Independent public score (not head-to-head) | 36.27 | null |
| Benchmarks Covered | 6 | 6 |
| Pricing (input/output) | $0.04 / $0.15 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 12.6 (Supported · #115/124)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 96.0% | Coming soon | Coming soon |
| DeepSearchQA | 34.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 34.5% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 17 (Estimated · #124/148)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 38% | Coming soon | Coming soon |
| LiveCodeBench | Coming soon | 53.1% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 72.6 (Unranked · 2 rankable rows)
- Phi-4-reasoning-plus public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 34.6 (Supported · #133/181)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 79.0% | Coming soon | Coming soon |
| GPQA | Coming soon | 68.9% | Coming soon |
| MMLU-Pro | Coming soon | 76% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 81.1 (#55/128)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 77% | Coming soon | Coming soon |
| IFEval | Coming soon | 84.9% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | Coming soon | 81.3% | Coming soon |
| AIME 2025 | Coming soon | 78% | Coming soon |

## FAQ

### Can I compare Mercury 2.5 and Phi-4-reasoning-plus 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

- [Mercury 2.5 vs Mercury 2.5 Preview](/compare/mercury-2-5-vs-mercury-2-5-preview)
- [Phi-4-reasoning-plus vs Mercury 2.5 Preview](/compare/mercury-2-5-preview-vs-phi-4-reasoning-plus)
- [Mercury 2.5 vs Phi-4-reasoning](/compare/mercury-2-5-vs-phi-4-reasoning)
- [Phi-4-reasoning-plus vs Phi-4-reasoning](/compare/phi-4-reasoning-vs-phi-4-reasoning-plus)

## Explore More

- [Mercury 2.5 profile](/models/mercury-2-5)
- [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)