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GPT-4o vs LongCat-2.5

LongCat-2.5 leads the LLM Stats Score 50.0 to 13.5. LongCat-2.5 is 8.3x cheaper per token.

OpenAI · Meituan · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 13.5, 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.

On price, LongCat-2.5 is roughly 8.3x 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 GPT-4o

  • you want predictable pricing at $2.50/M input and $10.00/M output

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 value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 8.3x 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

At a glance

The differences that matter most.

GPT-4o
OpenAI
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
13.5
#278
50.0
#20
Reasoning
15.2
#261
48.3
#21
Coding
-1.0
#282
38.6
#27
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$2.50 / M
$0.30 / M
Output price
$10.00 / M
$1.20 / M
Context window
128,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
GPT-4o
LongCat-2.5
Math
12.1#255
37.2#37
Vision
8.1#165
32.5#29
Tool use
5.0#185
30.2#15
Multimodal
11.6#131
34.8#15
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

38 reported for GPT-4o · 23 for LongCat-2.5

1 shared

GPT-4o outperforms in 0 benchmarks, while LongCat-2.5 is better at 1 benchmark (CharXiv-R).

LongCat-2.5 significantly outperforms across most benchmarks.

Mon Nov 02 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, GPT-4o ($2.50/1M tokens) is 8.3x more expensive than LongCat-2.5 ($0.30/1M tokens).

For output processing, GPT-4o ($10.00/1M tokens) is 8.3x more expensive than LongCat-2.5 ($1.20/1M tokens).

In conclusion, GPT-4o is more expensive than LongCat-2.5.*

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

Lowest available price from all providers
Mon Nov 02 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

LongCat-2.5 accepts 1,048,576 input tokens compared to GPT-4o's 128,000 tokens. LongCat-2.5 can generate longer responses up to 131,072 tokens, while GPT-4o is limited to 16,384 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output16,384 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

Both GPT-4o and LongCat-2.5 support multimodal inputs.

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

GPT-4o

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 27 months newer than GPT-4o.

GPT-4o

Aug 6, 2024

2.2 years ago

LongCat-2.5

Nov 1, 2026

0 days ago

2.2yr 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

GPT-4o is available from Azure, OpenAI. LongCat-2.5 is available from Meituan.

GPT-4o

azure logo
Azure
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

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 GPT-4o and LongCat-2.5 side-by-side, then vote on the output you prefer.

GPT-4o
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about GPT-4o vs LongCat-2.5.

Which is better, GPT-4o or LongCat-2.5?

LongCat-2.5 leads the LLM Stats Score 50.0 to 13.5. GPT-4o is made by OpenAI 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 GPT-4o compare to LongCat-2.5 in benchmarks?

GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%. 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 GPT-4o cheaper than LongCat-2.5?

LongCat-2.5 is 8.3x cheaper for input tokens. GPT-4o costs $2.50/M input and $10.00/M output via azure. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for GPT-4o and LongCat-2.5?

GPT-4o supports 128K 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 GPT-4o and LongCat-2.5?

Key differences include LLM Stats Score (13.5 vs 50.0), context window (128K vs 1.0M), input pricing ($2.50 vs $0.30/M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4o and LongCat-2.5?

GPT-4o is developed by OpenAI and LongCat-2.5 is developed by Meituan.

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