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Grok 4.6 vs LongCat-2.5

Grok 4.6 and LongCat-2.5 are closely matched at 44.3 and 50.0 on the LLM Stats Score. LongCat-2.5 is 5.7x cheaper per token.

xAI · Meituan · Updated for 2026

Which is better?

Grok 4.6 and LongCat-2.5 are closely matched on the overall LLM Stats Score at 44.3 and 50.0.

The models split the 2 individual benchmarks reported for both models evenly.

On price, LongCat-2.5 is roughly 5.7x 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 Grok 4.6

  • you want predictable pricing at $2.00/M input and $6.00/M output

Choose LongCat-2.5

  • cost matters — it's about 5.7x 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.

Grok 4.6
xAI
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
44.3
#50
50.0
#20
Reasoning
46.0
#33
48.3
#21
Coding
33.4
#50
38.6
#27
Agents
34.1
#36
36.3
#23
Cost, coverage & limits
Benchmark wins
1 of 2
1 of 2
Input price
$2.00 / M
$0.30 / M
Output price
$6.00 / M
$1.20 / M
Context window
500,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Grok 4.6
LongCat-2.5
Tool use
18.1#90
30.2#15
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

12 reported for Grok 4.6 · 23 for LongCat-2.5

2 shared

Grok 4.6 outperforms in 1 benchmarks (DeepSWE 1.1), while LongCat-2.5 is better at 1 benchmark (Terminal-Bench 4.0).

Both models are evenly matched across the benchmarks.

Sat Nov 07 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, Grok 4.6 ($2.00/1M tokens) is 6.7x more expensive than LongCat-2.5 ($0.30/1M tokens).

For output processing, Grok 4.6 ($6.00/1M tokens) is 5.0x more expensive than LongCat-2.5 ($1.20/1M tokens).

In conclusion, Grok 4.6 is more expensive than LongCat-2.5.*

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

Lowest available price from all providers
Sat Nov 07 2026 • llm-stats.com
xAI
Grok 4.6
Input tokens$2.00
Output tokens$6.00
Best providerxAI
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 Grok 4.6's 500,000 tokens. Only LongCat-2.5 specifies output context (131,072 tokens).

xAI
Grok 4.6
Input500,000 tokens
Output- tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Sat Nov 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok 4.6 and LongCat-2.5 support multimodal inputs.

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

Grok 4.6

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

Grok 4.6 was released on 2026-08-12, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 3 months newer than Grok 4.6.

Grok 4.6

Aug 12, 2026

2 months ago

LongCat-2.5

Nov 1, 2026

4 days ago

2mo newer

Knowledge Cutoff

When training data ends

Grok 4.6 has a documented knowledge cutoff of 2026-02-01, while LongCat-2.5's cutoff date is not specified.

We can confirm Grok 4.6's training data extends to 2026-02-01, but cannot make a direct comparison without LongCat-2.5's cutoff date.

Grok 4.6

Feb 2026

LongCat-2.5

—

Provider Availability

Grok 4.6 is available from xAI. LongCat-2.5 is available from Meituan.

Grok 4.6

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M

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 Grok 4.6 and LongCat-2.5 side-by-side, then vote on the output you prefer.

Grok 4.6
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about Grok 4.6 vs LongCat-2.5.

Which is better, Grok 4.6 or LongCat-2.5?

Grok 4.6 and LongCat-2.5 are closely matched on the LLM Stats Score at 44.3 and 50.0. Grok 4.6 is made by xAI 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 Grok 4.6 compare to LongCat-2.5 in benchmarks?

Grok 4.6 scores CursorBench v3.2: 69.9%, DeepSWE 1.1: 65.9%, FrontierCode: 61.3%, AA-Index: 61.0%, GDPval-AA: 58.4%. 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 Grok 4.6 cheaper than LongCat-2.5?

LongCat-2.5 is 6.7x cheaper for input tokens. Grok 4.6 costs $2.00/M input and $6.00/M output via xai. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for Grok 4.6 and LongCat-2.5?

Grok 4.6 supports 500K 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 Grok 4.6 and LongCat-2.5?

Key differences include LLM Stats Score (44.3 vs 50.0), context window (500K vs 1.0M), input pricing ($2.00 vs $0.30/M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.6 and LongCat-2.5?

Grok 4.6 is developed by xAI and LongCat-2.5 is developed by Meituan.

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