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LongCat-2.5 vs Seed 2.0 Pro

LongCat-2.5 leads the LLM Stats Score 49.7 to 38.7. LongCat-2.5 is 2.1x cheaper per token.

Meituan · ByteDance · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 49.7 to 38.7, ranking #22 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.

On price, LongCat-2.5 is roughly 2.1x 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 LongCat-2.5

  • overall performance matters — it scores 49.7 and ranks #22 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
  • cost matters — it's about 2.1x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Nov 2026

Choose Seed 2.0 Pro

  • you want predictable pricing at $0.50/M input and $3.00/M output

At a glance

The differences that matter most.

LongCat-2.5
Meituan
Seed 2.0 Pro
ByteDance
Core performance indexes
LLM Stats Score
49.7
#22
38.7
#85
Reasoning
48.0
#23
38.2
#86
Coding
38.0
#29
22.0
#108
Agents
35.8
#24
16.7
#109
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$0.30 / M
$0.50 / M
Output price
$1.20 / M
$3.00 / M
Context window
1,048,576
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
LongCat-2.5
Seed 2.0 Pro
Math
37.1#38
32.0#71
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for LongCat-2.5 · 6 for Seed 2.0 Pro

1 shared

LongCat-2.5 outperforms in 1 benchmarks (BrowseComp), while Seed 2.0 Pro is better at 0 benchmarks.

LongCat-2.5 significantly outperforms across most benchmarks.

Wed Nov 11 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

LongCat-2.5 costs less

For input processing, LongCat-2.5 ($0.30/1M tokens) is 1.7x cheaper than Seed 2.0 Pro ($0.50/1M tokens).

For output processing, LongCat-2.5 ($1.20/1M tokens) is 2.5x cheaper than Seed 2.0 Pro ($3.00/1M tokens).

In conclusion, Seed 2.0 Pro is more expensive than LongCat-2.5.*

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

Lowest available price from all providers
Wed Nov 11 2026 • llm-stats.com
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
ByteDance
Seed 2.0 Pro
Input tokens$0.50
Output tokens$3.00
Best providerDeepinfra
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

LongCat-2.5 accepts 1,048,576 input tokens compared to Seed 2.0 Pro's 256,000 tokens. Both models can generate responses up to 131,072 tokens.

Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
ByteDance
Seed 2.0 Pro
Input256,000 tokens
Output131,072 tokens
Wed Nov 11 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both LongCat-2.5 and Seed 2.0 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

Seed 2.0 Pro

Text
Images
Audio
Video

Release Timeline

When each model was launched

LongCat-2.5 was released on 2026-11-01, while Seed 2.0 Pro was released on 2026-02-14.

LongCat-2.5 is 9 months newer than Seed 2.0 Pro.

LongCat-2.5

Nov 1, 2026

1 weeks ago

8mo newer
Seed 2.0 Pro

Feb 14, 2026

8 months ago

Knowledge Cutoff

When training data ends

Seed 2.0 Pro has a documented knowledge cutoff of 2024-01-01, while LongCat-2.5's cutoff date is not specified.

We can confirm Seed 2.0 Pro's training data extends to 2024-01-01, but cannot make a direct comparison without LongCat-2.5's cutoff date.

LongCat-2.5

—

Seed 2.0 Pro

Jan 2024

Provider Availability

LongCat-2.5 is available from Meituan. Seed 2.0 Pro is available from DeepInfra.

LongCat-2.5

meituan logo
Meituan
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M

Seed 2.0 Pro

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LongCat-2.5 and Seed 2.0 Pro side-by-side, then vote on the output you prefer.

LongCat-2.5
✓ Preferred
Seed 2.0 Pro
Open in Playground

FAQ

Common questions about LongCat-2.5 vs Seed 2.0 Pro.

Which is better, LongCat-2.5 or Seed 2.0 Pro?

LongCat-2.5 leads the LLM Stats Score 49.7 to 38.7. LongCat-2.5 is made by Meituan and Seed 2.0 Pro is made by ByteDance. 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 Seed 2.0 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%. Seed 2.0 Pro scores AIME 2025: 98.3%, AIME 2026: 94.2%, GPQA: 88.9%, LiveCodeBench v6: 87.8%, BrowseComp: 77.3%.

Is LongCat-2.5 cheaper than Seed 2.0 Pro?

LongCat-2.5 is 1.7x cheaper for input tokens. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan. Seed 2.0 Pro costs $0.50/M input and $3.00/M output via deepinfra.

What are the context window sizes for LongCat-2.5 and Seed 2.0 Pro?

LongCat-2.5 supports 1.0M tokens and Seed 2.0 Pro supports 256K 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 Seed 2.0 Pro?

Key differences include LLM Stats Score (49.7 vs 38.7), context window (1.0M vs 256K), input pricing ($0.30 vs $0.50/M), licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-2.5 and Seed 2.0 Pro?

LongCat-2.5 is developed by Meituan and Seed 2.0 Pro is developed by ByteDance.

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