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DeepSeek-V2.5 vs LongCat-2.5

LongCat-2.5 leads the LLM Stats Score 50.0 to 7.6. DeepSeek-V2.5 is 3.0x cheaper per token.

DeepSeek · Meituan · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 7.6, ranking #20 overall.

On price, DeepSeek-V2.5 is roughly 3.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

LongCat-2.5 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose DeepSeek-V2.5

  • cost matters — it's about 3.0x cheaper per token
  • you need open weights you can self-host or fine-tune

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 process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

DeepSeek-V2.5
DeepSeek
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
7.6
#321
50.0
#20
Reasoning
7.6
#317
48.3
#21
Coding
6.0
#225
38.6
#27
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.14 / M
$0.30 / M
Output price
$0.28 / M
$1.20 / M
Context window
8,192
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
DeepSeek-V2.5
LongCat-2.5
Math
13.9#241
37.2#37
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

15 reported for DeepSeek-V2.5 · 23 for LongCat-2.5

No common benchmarks found

DeepSeek-V2.5 and LongCat-2.5don'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

Pricing Analysis

Price comparison per million tokens

DeepSeek-V2.5 costs less

For input processing, DeepSeek-V2.5 ($0.14/1M tokens) is 2.1x cheaper than LongCat-2.5 ($0.30/1M tokens).

For output processing, DeepSeek-V2.5 ($0.28/1M tokens) is 4.3x cheaper than LongCat-2.5 ($1.20/1M tokens).

In conclusion, LongCat-2.5 is more expensive than DeepSeek-V2.5.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Nov 02 2026 • llm-stats.com
DeepSeek
DeepSeek-V2.5
Input tokens$0.14
Output tokens$0.28
Best providerDeepSeek
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Notice missing or incorrect data?

Model Size

Parameter count comparison

1364.0B diff

LongCat-2.5 has 1364.0B more parameters than DeepSeek-V2.5, making it 578.0% larger.

DeepSeek
DeepSeek-V2.5
236.0Bparameters
Meituan
LongCat-2.5
1.6Tparameters
236.0B
DeepSeek-V2.5
1600.0B
LongCat-2.5

Context Window

Maximum input and output token capacity

LongCat-2.5 accepts 1,048,576 input tokens compared to DeepSeek-V2.5's 8,192 tokens. LongCat-2.5 can generate longer responses up to 131,072 tokens, while DeepSeek-V2.5 is limited to 8,192 tokens.

DeepSeek
DeepSeek-V2.5
Input8,192 tokens
Output8,192 tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Mon Nov 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

LongCat-2.5 supports multimodal inputs, whereas DeepSeek-V2.5 does not.

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

DeepSeek-V2.5

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

DeepSeek-V2.5 was released on 2024-05-08, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 30 months newer than DeepSeek-V2.5.

DeepSeek-V2.5

May 8, 2024

2.5 years ago

LongCat-2.5

Nov 1, 2026

1 days ago

2.5yr newer

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

Provider Availability

DeepSeek-V2.5 is available from DeepSeek, DeepInfra, Hyperbolic. LongCat-2.5 is available from Meituan.

DeepSeek-V2.5

deepseek logo
DeepSeek
Input Price:Input: $0.14/1MOutput Price:Output: $0.28/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.70/1MOutput Price:Output: $1.40/1M
hyperbolic logo
Hyperbolic
Input Price:Input: $2.00/1MOutput Price:Output: $2.00/1M

LongCat-2.5

meituan logo
Meituan
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against DeepSeek-V2.5 and LongCat-2.5 side-by-side, then vote on the output you prefer.

DeepSeek-V2.5
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about DeepSeek-V2.5 vs LongCat-2.5.

Which is better, DeepSeek-V2.5 or LongCat-2.5?

LongCat-2.5 leads the LLM Stats Score 50.0 to 7.6. DeepSeek-V2.5 is made by DeepSeek and LongCat-2.5 is made by Meituan. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does DeepSeek-V2.5 compare to LongCat-2.5 in benchmarks?

DeepSeek-V2.5 scores GSM8k: 95.1%, MT-Bench: 90.2%, HumanEval: 89.0%, BBH: 84.3%, AlignBench: 80.4%. LongCat-2.5 scores MathVision: 96.5%, BrowseComp: 91.9%, CharXiv-R: 90.2%, Terminal-Bench 2.1: 88.4%, Video-MME: 85.2%.

Is DeepSeek-V2.5 cheaper than LongCat-2.5?

DeepSeek-V2.5 is 2.1x cheaper for input tokens. DeepSeek-V2.5 costs $0.14/M input and $0.28/M output via deepseek. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for DeepSeek-V2.5 and LongCat-2.5?

DeepSeek-V2.5 supports 8K tokens and LongCat-2.5 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-V2.5 and LongCat-2.5?

Key differences include LLM Stats Score (7.6 vs 50.0), context window (8K vs 1.0M), input pricing ($0.14 vs $0.30/M), multimodal support (no vs yes), licensing (deepseek vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-V2.5 and LongCat-2.5?

DeepSeek-V2.5 is developed by DeepSeek and LongCat-2.5 is developed by Meituan.

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