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LongCat-2.5 vs o1-pro

LongCat-2.5 leads the LLM Stats Score 50.0 to 19.1.

Meituan · OpenAI · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 19.1, 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 — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

Choose o1-pro

  • you are already invested in the OpenAI ecosystem

At a glance

The differences that matter most.

LongCat-2.5
Meituan
o1-pro
OpenAI
Core performance indexes
LLM Stats Score
50.0
#20
19.1
#239
Reasoning
48.3
#21
19.5
#228
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.30 / M
— / M
Output price
$1.20 / M
— / M
Context window
1,048,576
—

Individual benchmarks

23 reported for LongCat-2.5 · 2 for o1-pro

No common benchmarks found

LongCat-2.5 and o1-prodon'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

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
OpenAI
o1-pro
Input- tokens
Output- tokens
Mon Nov 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both LongCat-2.5 and o1-pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

LongCat-2.5

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

Release Timeline

When each model was launched

LongCat-2.5 was released on 2026-11-01, while o1-pro was released on 2024-12-17.

LongCat-2.5 is 23 months newer than o1-pro.

LongCat-2.5

Nov 1, 2026

0 days ago

1.9yr newer
o1-pro

Dec 17, 2024

1.9 years ago

Knowledge Cutoff

When training data ends

o1-pro has a documented knowledge cutoff of 2023-09-30, while LongCat-2.5's cutoff date is not specified.

We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without LongCat-2.5's cutoff date.

LongCat-2.5

—

o1-pro

Sep 2023

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LongCat-2.5 and o1-pro side-by-side, then vote on the output you prefer.

LongCat-2.5
✓ Preferred
o1-pro
Open in Playground

FAQ

Common questions about LongCat-2.5 vs o1-pro.

Which is better, LongCat-2.5 or o1-pro?

LongCat-2.5 leads the LLM Stats Score 50.0 to 19.1. LongCat-2.5 is made by Meituan and o1-pro is made by OpenAI. 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 o1-pro 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%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for LongCat-2.5 and o1-pro?

LongCat-2.5 supports 1.0M tokens and o1-pro 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 o1-pro?

Key differences include LLM Stats Score (50.0 vs 19.1), licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-2.5 and o1-pro?

LongCat-2.5 is developed by Meituan and o1-pro is developed by OpenAI.

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