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LongCat-2.5 vs Phi 4 Reasoning Plus

LongCat-2.5 leads the LLM Stats Score 50.0 to 14.5.

Meituan · Microsoft · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 14.5, ranking #20 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose LongCat-2.5

  • overall performance matters — it scores 50.0 and ranks #20 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

Choose Phi 4 Reasoning Plus

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

LongCat-2.5
Meituan
Phi 4 Reasoning Plus
Microsoft
Core performance indexes
LLM Stats Score
50.0
#20
14.5
#271
Reasoning
48.3
#21
14.9
#265
Coding
38.6
#27
5.6
#228
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.30 / M
— / M
Output price
$1.20 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
LongCat-2.5
Phi 4 Reasoning Plus
Math
37.2#37
18.3#199
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for LongCat-2.5 · 11 for Phi 4 Reasoning Plus

No common benchmarks found

LongCat-2.5 and Phi 4 Reasoning Plusdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

1586.0B diff

LongCat-2.5 has 1586.0B more parameters than Phi 4 Reasoning Plus, making it 11328.6% larger.

Meituan
LongCat-2.5
1.6Tparameters
Microsoft
Phi 4 Reasoning Plus
14.0Bparameters
1600.0B
LongCat-2.5
14.0B
Phi 4 Reasoning Plus

Context Window

Maximum input and output token capacity

Only LongCat-2.5 specifies input context (1,048,576 tokens). Only LongCat-2.5 specifies output context (131,072 tokens).

Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Microsoft
Phi 4 Reasoning Plus
Input- tokens
Output- tokens
Sun Nov 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

LongCat-2.5 supports multimodal inputs, whereas Phi 4 Reasoning Plus does not.

LongCat-2.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

LongCat-2.5

Text
Images
Audio
Video

Phi 4 Reasoning Plus

Text
Images
Audio
Video

Release Timeline

When each model was launched

LongCat-2.5 was released on 2026-11-01, while Phi 4 Reasoning Plus was released on 2025-04-30.

LongCat-2.5 is 18 months newer than Phi 4 Reasoning Plus.

LongCat-2.5

Nov 1, 2026

6 days ago

1.5yr newer
Phi 4 Reasoning Plus

Apr 30, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

Phi 4 Reasoning Plus has a documented knowledge cutoff of 2025-03-01, while LongCat-2.5's cutoff date is not specified.

We can confirm Phi 4 Reasoning Plus's training data extends to 2025-03-01, but cannot make a direct comparison without LongCat-2.5's cutoff date.

LongCat-2.5

—

Phi 4 Reasoning Plus

Mar 2025

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LongCat-2.5 and Phi 4 Reasoning Plus side-by-side, then vote on the output you prefer.

LongCat-2.5
✓ Preferred
Phi 4 Reasoning Plus
Open in Playground

FAQ

Common questions about LongCat-2.5 vs Phi 4 Reasoning Plus.

Which is better, LongCat-2.5 or Phi 4 Reasoning Plus?

LongCat-2.5 leads the LLM Stats Score 50.0 to 14.5. LongCat-2.5 is made by Meituan and Phi 4 Reasoning Plus is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does LongCat-2.5 compare to Phi 4 Reasoning Plus in benchmarks?

LongCat-2.5 scores MathVision: 96.5%, BrowseComp: 91.9%, CharXiv-R: 90.2%, Terminal-Bench 2.1: 88.4%, Video-MME: 85.2%. Phi 4 Reasoning Plus scores FlenQA: 97.9%, HumanEval+: 92.3%, IFEval: 84.9%, OmniMath: 81.9%, AIME 2024: 81.3%.

What are the context window sizes for LongCat-2.5 and Phi 4 Reasoning Plus?

LongCat-2.5 supports 1.0M tokens and Phi 4 Reasoning Plus supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between LongCat-2.5 and Phi 4 Reasoning Plus?

Key differences include LLM Stats Score (50.0 vs 14.5), multimodal support (yes vs no), licensing (Unknown vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-2.5 and Phi 4 Reasoning Plus?

LongCat-2.5 is developed by Meituan and Phi 4 Reasoning Plus is developed by Microsoft.

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