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LongCat-2.5 vs Nova 2 Omni

LongCat-2.5 leads the LLM Stats Score 50.0 to 25.0.

Meituan · Amazon · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 25.0, ranking #20 overall.

In the 1 individual benchmarks reported for both models, LongCat-2.5 wins 1; this is a narrower head-to-head signal than the composite indexes.

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 agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Nov 2026

Choose Nova 2 Omni

  • you are already invested in the Amazon ecosystem

At a glance

The differences that matter most.

LongCat-2.5
Meituan
Nova 2 Omni
Amazon
Core performance indexes
LLM Stats Score
50.0
#20
25.0
#192
Reasoning
48.3
#21
27.4
#166
Agents
36.3
#23
4.3
#186
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
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

4 shared
Index
LongCat-2.5
Nova 2 Omni
Math
37.2#37
25.1#123
Vision
32.5#29
7.3#170
Tool use
30.2#15
14.3#120
Multimodal
34.8#15
8.5#147
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for LongCat-2.5 · 18 for Nova 2 Omni

1 shared

LongCat-2.5 outperforms in 1 benchmarks (Video-MME), while Nova 2 Omni is better at 0 benchmarks.

LongCat-2.5 significantly outperforms across most benchmarks.

Fri Nov 06 2026 • llm-stats.com

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
Amazon
Nova 2 Omni
Input- tokens
Output- tokens
Fri Nov 06 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both LongCat-2.5 and Nova 2 Omni support multimodal inputs.

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

LongCat-2.5

Text
Images
Audio
Video

Nova 2 Omni

Text
Images
Audio
Video

Release Timeline

When each model was launched

LongCat-2.5 was released on 2026-11-01, while Nova 2 Omni was released on 2025-12-02.

LongCat-2.5 is 11 months newer than Nova 2 Omni.

LongCat-2.5

Nov 1, 2026

4 days ago

11mo newer
Nova 2 Omni

Dec 2, 2025

11 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LongCat-2.5 and Nova 2 Omni side-by-side, then vote on the output you prefer.

LongCat-2.5
✓ Preferred
Nova 2 Omni
Open in Playground

FAQ

Common questions about LongCat-2.5 vs Nova 2 Omni.

Which is better, LongCat-2.5 or Nova 2 Omni?

LongCat-2.5 leads the LLM Stats Score 50.0 to 25.0. LongCat-2.5 is made by Meituan and Nova 2 Omni is made by Amazon. 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 Nova 2 Omni 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%. Nova 2 Omni scores AIME 2025: 92.1%, RefCOCOg: 86.3%, ScreenSpot: 85.4%, MMLU-Pro: 80.7%, Tau2 Telecom: 80.0%.

What are the context window sizes for LongCat-2.5 and Nova 2 Omni?

LongCat-2.5 supports 1.0M tokens and Nova 2 Omni 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 Nova 2 Omni?

Key differences include LLM Stats Score (50.0 vs 25.0), licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-2.5 and Nova 2 Omni?

LongCat-2.5 is developed by Meituan and Nova 2 Omni is developed by Amazon.

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