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LongCat-2.5 vs Mistral Large 3 (675B Instruct 2512)

LongCat-2.5 leads the LLM Stats Score 49.7 to 8.3. LongCat-2.5 is 1.4x cheaper per token.

Meituan · Mistral AI · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 49.7 to 8.3, ranking #22 overall.

On price, LongCat-2.5 is roughly 1.4x 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 coding — it leads those capability indexes
  • cost matters — it's about 1.4x 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 Mistral Large 3 (675B Instruct 2512)

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

LongCat-2.5
Meituan
Mistral Large 3 (675B Instruct 2512)
Mistral AI
Core performance indexes
LLM Stats Score
49.7
#22
8.3
#316
Reasoning
48.0
#23
8.5
#308
Coding
38.0
#29
1.4
#270
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.30 / M
$0.50 / M
Output price
$1.20 / M
$1.50 / M
Context window
1,048,576
262,100

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
LongCat-2.5
Mistral Large 3 (675B Instruct 2512)
Math
37.1#38
18.8#193
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for LongCat-2.5 · 5 for Mistral Large 3 (675B Instruct 2512)

No common benchmarks found

LongCat-2.5 and Mistral Large 3 (675B Instruct 2512)don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

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 Mistral Large 3 (675B Instruct 2512) ($0.50/1M tokens).

For output processing, LongCat-2.5 ($1.20/1M tokens) is 1.3x cheaper than Mistral Large 3 (675B Instruct 2512) ($1.50/1M tokens).

In conclusion, Mistral Large 3 (675B Instruct 2512) is more expensive than LongCat-2.5.*

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

Lowest available price from all providers
Tue Nov 10 2026 • llm-stats.com
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Mistral AI
Mistral Large 3 (675B Instruct 2512)
Input tokens$0.50
Output tokens$1.50
Best providerMistral
Notice missing or incorrect data?

Model Size

Parameter count comparison

925.0B diff

LongCat-2.5 has 925.0B more parameters than Mistral Large 3 (675B Instruct 2512), making it 137.0% larger.

Meituan
LongCat-2.5
1.6Tparameters
Mistral AI
Mistral Large 3 (675B Instruct 2512)
675.0Bparameters
1600.0B
LongCat-2.5
675.0B
Mistral Large 3 (675B Instruct 2512)

Context Window

Maximum input and output token capacity

LongCat-2.5 accepts 1,048,576 input tokens compared to Mistral Large 3 (675B Instruct 2512)'s 262,100 tokens. Mistral Large 3 (675B Instruct 2512) can generate longer responses up to 262,100 tokens, while LongCat-2.5 is limited to 131,072 tokens.

Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Mistral AI
Mistral Large 3 (675B Instruct 2512)
Input262,100 tokens
Output262,100 tokens
Tue Nov 10 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both LongCat-2.5 and Mistral Large 3 (675B Instruct 2512) support multimodal inputs.

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

LongCat-2.5

Text
Images
Audio
Video

Mistral Large 3 (675B Instruct 2512)

Text
Images
Audio
Video

Release Timeline

When each model was launched

LongCat-2.5 was released on 2026-11-01, while Mistral Large 3 (675B Instruct 2512) was released on 2025-12-04.

LongCat-2.5 is 11 months newer than Mistral Large 3 (675B Instruct 2512).

LongCat-2.5

Nov 1, 2026

1 weeks ago

11mo newer
Mistral Large 3 (675B Instruct 2512)

Dec 4, 2025

11 months 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

LongCat-2.5 is available from Meituan. Mistral Large 3 (675B Instruct 2512) is available from Mistral AI.

LongCat-2.5

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

Mistral Large 3 (675B Instruct 2512)

mistral logo
Mistral
Input Price:Input: $0.50/1MOutput Price:Output: $1.50/1M
* 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 Mistral Large 3 (675B Instruct 2512) side-by-side, then vote on the output you prefer.

LongCat-2.5
✓ Preferred
Mistral Large 3 (675B Instruct 2512)
Open in Playground

FAQ

Common questions about LongCat-2.5 vs Mistral Large 3 (675B Instruct 2512).

Which is better, LongCat-2.5 or Mistral Large 3 (675B Instruct 2512)?

LongCat-2.5 leads the LLM Stats Score 49.7 to 8.3. LongCat-2.5 is made by Meituan and Mistral Large 3 (675B Instruct 2512) is made by Mistral AI. 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 Mistral Large 3 (675B Instruct 2512) 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%. Mistral Large 3 (675B Instruct 2512) scores MMMLU: 85.5%, AMC_2022_23: 52.0%, GPQA: 43.9%, LiveCodeBench: 34.4%, SimpleQA: 23.8%.

Is LongCat-2.5 cheaper than Mistral Large 3 (675B Instruct 2512)?

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. Mistral Large 3 (675B Instruct 2512) costs $0.50/M input and $1.50/M output via mistral.

What are the context window sizes for LongCat-2.5 and Mistral Large 3 (675B Instruct 2512)?

LongCat-2.5 supports 1.0M tokens and Mistral Large 3 (675B Instruct 2512) supports 262K 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 Mistral Large 3 (675B Instruct 2512)?

Key differences include LLM Stats Score (49.7 vs 8.3), context window (1.0M vs 262K), input pricing ($0.30 vs $0.50/M), licensing (Unknown vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes LongCat-2.5 and Mistral Large 3 (675B Instruct 2512)?

LongCat-2.5 is developed by Meituan and Mistral Large 3 (675B Instruct 2512) is developed by Mistral AI.

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