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ERNIE 5.5 Flash Preview vs LongCat-2.5

ERNIE 5.5 Flash Preview and LongCat-2.5 are closely matched at 52.3 and 49.4 on the LLM Stats Score. ERNIE 5.5 Flash Preview is 1.1x cheaper per token.

Baidu · Meituan · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview and LongCat-2.5 are closely matched on the overall LLM Stats Score at 52.3 and 49.4.

In the 6 individual benchmarks reported for both models, ERNIE 5.5 Flash Preview wins 5; this is a narrower head-to-head signal than the composite indexes.

On price, ERNIE 5.5 Flash Preview is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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

Choose ERNIE 5.5 Flash Preview

  • you value its reported benchmark strengths — it wins 5 of 6 exact shared results
  • cost matters — it's about 1.1x cheaper per token
  • you want the most recent training data — it shipped Nov 2026

Choose LongCat-2.5

  • you want predictable pricing at $0.30/M input and $1.20/M output

At a glance

The differences that matter most.

ERNIE 5.5 Flash Preview
Baidu
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
52.3
#13
49.4
#24
Reasoning
50.7
#12
47.9
#27
Coding
37.9
#20
36.9
#29
Agents
38.5
#11
34.8
#27
Cost, coverage & limits
Benchmark wins
5 of 6
1 of 6
Input price
$0.28 / M
$0.30 / M
Output price
$1.13 / M
$1.20 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
ERNIE 5.5 Flash Preview
LongCat-2.5
Tool use
32.2#8
29.3#25
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for ERNIE 5.5 Flash Preview · 23 for LongCat-2.5

6 shared

ERNIE 5.5 Flash Preview outperforms in 5 benchmarks (DeepSWE 1.1, MCP Atlas, NL2Repo, SpreadsheetBench 2, Terminal-Bench 4.0), while LongCat-2.5 is better at 1 benchmark (BrowseComp).

ERNIE 5.5 Flash Preview significantly outperforms across most benchmarks.

Thu Nov 12 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

ERNIE 5.5 Flash Preview costs less

For input processing, ERNIE 5.5 Flash Preview ($0.28/1M tokens) is 1.1x cheaper than LongCat-2.5 ($0.30/1M tokens).

For output processing, ERNIE 5.5 Flash Preview ($1.13/1M tokens) is 1.1x cheaper than LongCat-2.5 ($1.20/1M tokens).

In conclusion, LongCat-2.5 is more expensive than ERNIE 5.5 Flash Preview.*

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

Lowest available price from all providers
Thu Nov 12 2026 • llm-stats.com
Baidu
ERNIE 5.5 Flash Preview
Input tokens$0.28
Output tokens$1.13
Best providerBaidu
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Notice missing or incorrect data?

Model Size

Parameter count comparison

1320.0B diff

LongCat-2.5 has 1320.0B more parameters than ERNIE 5.5 Flash Preview, making it 471.4% larger.

Baidu
ERNIE 5.5 Flash Preview
280.0Bparameters
Meituan
LongCat-2.5
1.6Tparameters
280.0B
ERNIE 5.5 Flash Preview
1600.0B
LongCat-2.5

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,048,576 tokens. ERNIE 5.5 Flash Preview can generate longer responses up to 1,048,576 tokens, while LongCat-2.5 is limited to 131,072 tokens.

Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Thu Nov 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

LongCat-2.5 supports multimodal inputs, whereas ERNIE 5.5 Flash Preview does not.

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

ERNIE 5.5 Flash Preview

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

ERNIE 5.5 Flash Preview was released on 2026-11-11, while LongCat-2.5 was released on 2026-11-01.

ERNIE 5.5 Flash Preview is 0 month newer than LongCat-2.5.

ERNIE 5.5 Flash Preview

Nov 11, 2026

1 days ago

1w newer
LongCat-2.5

Nov 1, 2026

1 weeks 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

Provider Availability

ERNIE 5.5 Flash Preview is available from Baidu Qianfan. LongCat-2.5 is available from Meituan.

ERNIE 5.5 Flash Preview

baidu logo
Baidu
Input Price:Input: $0.28/1MOutput Price:Output: $1.13/1M

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 ERNIE 5.5 Flash Preview and LongCat-2.5 side-by-side, then vote on the output you prefer.

ERNIE 5.5 Flash Preview
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about ERNIE 5.5 Flash Preview vs LongCat-2.5.

Which is better, ERNIE 5.5 Flash Preview or LongCat-2.5?

ERNIE 5.5 Flash Preview and LongCat-2.5 are closely matched on the LLM Stats Score at 52.3 and 49.4. ERNIE 5.5 Flash Preview is made by Baidu 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 ERNIE 5.5 Flash Preview compare to LongCat-2.5 in benchmarks?

ERNIE 5.5 Flash Preview scores BrowseComp: 87.4%, DRACO: 84.9%, MCP Atlas: 84.6%, DeepSWE 1.1: 71.2%, OfficeQA Pro: 67.9%. 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 ERNIE 5.5 Flash Preview cheaper than LongCat-2.5?

ERNIE 5.5 Flash Preview is 1.1x cheaper for input tokens. ERNIE 5.5 Flash Preview costs $0.28/M input and $1.13/M output via baidu. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for ERNIE 5.5 Flash Preview and LongCat-2.5?

ERNIE 5.5 Flash Preview supports 1.0M 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 ERNIE 5.5 Flash Preview and LongCat-2.5?

Key differences include LLM Stats Score (52.3 vs 49.4), input pricing ($0.28 vs $0.30/M), multimodal support (no vs yes), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.5 Flash Preview and LongCat-2.5?

ERNIE 5.5 Flash Preview is developed by Baidu and LongCat-2.5 is developed by Meituan.

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