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Gemini 2.5 Flash vs LongCat-2.5

LongCat-2.5 leads the LLM Stats Score 50.0 to 21.1. LongCat-2.5 is 1.6x cheaper per token.

Google · Meituan · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to 21.1, ranking #20 overall.

On price, LongCat-2.5 is roughly 1.6x 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 Gemini 2.5 Flash

  • you want predictable pricing at $0.30/M input and $2.50/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
  • cost matters — it's about 1.6x 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.

Gemini 2.5 Flash
Google
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
21.1
#223
50.0
#20
Reasoning
20.8
#217
48.3
#21
Coding
8.3
#212
38.6
#27
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.30 / M
$0.30 / M
Output price
$2.50 / M
$1.20 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 2.5 Flash
LongCat-2.5
Math
15.9#228
37.2#37
Vision
10.8#139
32.5#29
Multimodal
19.5#92
34.8#15
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

14 reported for Gemini 2.5 Flash · 23 for LongCat-2.5

No common benchmarks found

Gemini 2.5 Flash and LongCat-2.5don'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, Gemini 2.5 Flash ($0.30/1M tokens) costs the same as LongCat-2.5 ($0.30/1M tokens).

For output processing, Gemini 2.5 Flash ($2.50/1M tokens) is 2.1x more expensive than LongCat-2.5 ($1.20/1M tokens).

In conclusion, Gemini 2.5 Flash 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 03 2026 • llm-stats.com
Google
Gemini 2.5 Flash
Input tokens$0.30
Output tokens$2.50
Best providerDeepinfra
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 Gemini 2.5 Flash's 1,000,000 tokens. Gemini 2.5 Flash can generate longer responses up to 1,000,000 tokens, while LongCat-2.5 is limited to 131,072 tokens.

Google
Gemini 2.5 Flash
Input1,000,000 tokens
Output1,000,000 tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Tue Nov 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 2.5 Flash and LongCat-2.5 support multimodal inputs.

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

Gemini 2.5 Flash

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

Gemini 2.5 Flash was released on 2025-05-20, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 18 months newer than Gemini 2.5 Flash.

Gemini 2.5 Flash

May 20, 2025

1.4 years ago

LongCat-2.5

Nov 1, 2026

-1 days ago

1.5yr newer

Knowledge Cutoff

When training data ends

Gemini 2.5 Flash has a documented knowledge cutoff of 2025-01-31, while LongCat-2.5's cutoff date is not specified.

We can confirm Gemini 2.5 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without LongCat-2.5's cutoff date.

Gemini 2.5 Flash

Jan 2025

LongCat-2.5

—

Provider Availability

Gemini 2.5 Flash is available from DeepInfra, Google. LongCat-2.5 is available from Meituan.

Gemini 2.5 Flash

deepinfra logo
Deepinfra
Input Price:Input: $0.30/1MOutput Price:Output: $2.50/1M
google logo
Google
Input Price:Input: $0.30/1MOutput Price:Output: $2.50/1M

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

Gemini 2.5 Flash
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about Gemini 2.5 Flash vs LongCat-2.5.

Which is better, Gemini 2.5 Flash or LongCat-2.5?

LongCat-2.5 leads the LLM Stats Score 50.0 to 21.1. Gemini 2.5 Flash is made by Google 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 Gemini 2.5 Flash compare to LongCat-2.5 in benchmarks?

Gemini 2.5 Flash scores Global-MMLU-Lite: 88.4%, AIME 2024: 88.0%, FACTS Grounding: 85.3%, GPQA: 82.8%, MMMU: 79.7%. 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 Gemini 2.5 Flash cheaper than LongCat-2.5?

Both models cost $0.30 per million input tokens.

What are the context window sizes for Gemini 2.5 Flash and LongCat-2.5?

Gemini 2.5 Flash 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 Gemini 2.5 Flash and LongCat-2.5?

Key differences include LLM Stats Score (21.1 vs 50.0), context window (1.0M vs 1.0M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 2.5 Flash and LongCat-2.5?

Gemini 2.5 Flash is developed by Google and LongCat-2.5 is developed by Meituan.

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