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Gemini 4 Carbon vs LongCat-Flash-Chat

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 19.2.

Google · Meituan · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 19.2, ranking #2 overall.

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

Choose Gemini 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

Choose LongCat-Flash-Chat

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

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
LongCat-Flash-Chat
Meituan
Core performance indexes
LLM Stats Score
59.0
#2
19.2
#234
Reasoning
54.9
#5
19.2
#230
Coding
48.1
#3
12.2
#176
Agents
46.0
#2
8.7
#157
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.30 / M
Output price
— / M
$1.20 / M
Context window
—
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Gemini 4 Carbon
LongCat-Flash-Chat
Tool use
35.8#3
8.0#168
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 16 for LongCat-Flash-Chat

No common benchmarks found

Gemini 4 Carbon and LongCat-Flash-Chatdon'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

Context Window

Maximum input and output token capacity

Only LongCat-Flash-Chat specifies input context (128,000 tokens). Only LongCat-Flash-Chat specifies output context (128,000 tokens).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Meituan
LongCat-Flash-Chat
Input128,000 tokens
Output128,000 tokens
Fri Oct 30 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 4 Carbon supports multimodal inputs, whereas LongCat-Flash-Chat does not.

Gemini 4 Carbon can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 4 Carbon

Text
Images
Audio
Video

LongCat-Flash-Chat

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 4 Carbon is licensed under a proprietary license, while LongCat-Flash-Chat uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 4 Carbon

Proprietary

Closed source

LongCat-Flash-Chat

MIT

Open weights

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while LongCat-Flash-Chat was released on 2025-08-29.

Gemini 4 Carbon is 14 months newer than LongCat-Flash-Chat.

Gemini 4 Carbon

Oct 28, 2026

1 days ago

1.2yr newer
LongCat-Flash-Chat

Aug 29, 2025

1.2 years 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

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 4 Carbon and LongCat-Flash-Chat side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
LongCat-Flash-Chat
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs LongCat-Flash-Chat.

Which is better, Gemini 4 Carbon or LongCat-Flash-Chat?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 19.2. Gemini 4 Carbon is made by Google and LongCat-Flash-Chat 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 4 Carbon compare to LongCat-Flash-Chat in benchmarks?

Gemini 4 Carbon scores Gray Swan IPI Benchmark: 100.0%, Vending-Bench 2: 100.0%, Graphwalks BFS >128k: 96.2%, WebDev Arena: 88.4%, SEC-bench Pro: 88.2%. LongCat-Flash-Chat scores MATH-500: 96.4%, MMLU: 89.7%, IFEval: 89.6%, ZebraLogic: 89.3%, HumanEval: 88.4%.

What are the context window sizes for Gemini 4 Carbon and LongCat-Flash-Chat?

Gemini 4 Carbon supports an unknown number of tokens and LongCat-Flash-Chat supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 4 Carbon and LongCat-Flash-Chat?

Key differences include LLM Stats Score (59.0 vs 19.2), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and LongCat-Flash-Chat?

Gemini 4 Carbon is developed by Google and LongCat-Flash-Chat is developed by Meituan.

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