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Claude Haiku 5.5 vs LongCat-2.5

Claude Haiku 5.5 and LongCat-2.5 are closely matched at 49.1 and 49.7 on the LLM Stats Score. Claude Haiku 5.5 is 2.6x cheaper per token.

Anthropic · Meituan · Updated for 2026

Which is better?

Claude Haiku 5.5 and LongCat-2.5 are closely matched on the overall LLM Stats Score at 49.1 and 49.7.

In the 2 individual benchmarks reported for both models, Claude Haiku 5.5 wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Claude Haiku 5.5 is roughly 2.6x 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 Claude Haiku 5.5

  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • cost matters — it's about 2.6x cheaper per token

Choose LongCat-2.5

  • 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.

Claude Haiku 5.5
Anthropic
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
49.1
#28
49.7
#22
Reasoning
46.0
#36
48.0
#23
Coding
38.4
#24
38.0
#29
Agents
33.0
#41
35.8
#24
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
$0.10 / M
$0.30 / M
Output price
$0.50 / M
$1.20 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
Claude Haiku 5.5
LongCat-2.5
Math
28.6#101
37.1#38
Vision
30.8#40
32.4#29
Tool use
19.7#81
29.9#18
Multimodal
31.3#35
34.8#15
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 23 for LongCat-2.5

2 shared

Claude Haiku 5.5 outperforms in 2 benchmarks (Program Bench, Terminal-Bench 4.0), while LongCat-2.5 is better at 0 benchmarks.

Claude Haiku 5.5 significantly outperforms across most benchmarks.

Tue Nov 10 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Claude Haiku 5.5 costs less

For input processing, Claude Haiku 5.5 ($0.10/1M tokens) is 3.0x cheaper than LongCat-2.5 ($0.30/1M tokens).

For output processing, Claude Haiku 5.5 ($0.50/1M tokens) is 2.4x cheaper than LongCat-2.5 ($1.20/1M tokens).

In conclusion, LongCat-2.5 is more expensive than Claude Haiku 5.5.*

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

Lowest available price from all providers
Tue Nov 10 2026 • llm-stats.com
Anthropic
Claude Haiku 5.5
Input tokens$0.10
Output tokens$0.50
Best providerAnthropic
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 Claude Haiku 5.5's 1,000,000 tokens. LongCat-2.5 can generate longer responses up to 131,072 tokens, while Claude Haiku 5.5 is limited to 128,000 tokens.

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Tue Nov 10 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and LongCat-2.5 support multimodal inputs.

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

Claude Haiku 5.5

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 1 month newer than Claude Haiku 5.5.

Claude Haiku 5.5

Oct 7, 2026

1 months ago

LongCat-2.5

Nov 1, 2026

1 weeks ago

3w newer

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while LongCat-2.5's cutoff date is not specified.

We can confirm Claude Haiku 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without LongCat-2.5's cutoff date.

Claude Haiku 5.5

Jun 2026

LongCat-2.5

—

Provider Availability

Claude Haiku 5.5 is available from Anthropic. LongCat-2.5 is available from Meituan.

Claude Haiku 5.5

anthropic logo
Anthropic
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

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 Claude Haiku 5.5 and LongCat-2.5 side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs LongCat-2.5.

Which is better, Claude Haiku 5.5 or LongCat-2.5?

Claude Haiku 5.5 and LongCat-2.5 are closely matched on the LLM Stats Score at 49.1 and 49.7. Claude Haiku 5.5 is made by Anthropic 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 Claude Haiku 5.5 compare to LongCat-2.5 in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. 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 Claude Haiku 5.5 cheaper than LongCat-2.5?

Claude Haiku 5.5 is 3.0x cheaper for input tokens. Claude Haiku 5.5 costs $0.10/M input and $0.50/M output via anthropic. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for Claude Haiku 5.5 and LongCat-2.5?

Claude Haiku 5.5 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 Claude Haiku 5.5 and LongCat-2.5?

Key differences include LLM Stats Score (49.1 vs 49.7), context window (1.0M vs 1.0M), input pricing ($0.10 vs $0.30/M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and LongCat-2.5?

Claude Haiku 5.5 is developed by Anthropic and LongCat-2.5 is developed by Meituan.

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