Model Comparison

Claude Opus 4 vs LongCat-Flash-Chat

Claude Opus 4 shows notably better performance in the majority of benchmarks. LongCat-Flash-Chat is 57.1x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude Opus 4 outperforms in 3 benchmarks (AIME 2025, GPQA, SWE-Bench Verified), while LongCat-Flash-Chat is better at 1 benchmark (Terminal-Bench).

Claude Opus 4 shows notably better performance in the majority of benchmarks.

Tue Apr 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

LongCat-Flash-Chat costs less

For input processing, Claude Opus 4 ($15.00/1M tokens) is 50.0x more expensive than LongCat-Flash-Chat ($0.30/1M tokens).

For output processing, Claude Opus 4 ($75.00/1M tokens) is 62.5x more expensive than LongCat-Flash-Chat ($1.20/1M tokens).

In conclusion, Claude Opus 4 is more expensive than LongCat-Flash-Chat.*

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

Lowest available price from all providers
Tue Apr 14 2026 • llm-stats.com
Anthropic
Claude Opus 4
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
Meituan
LongCat-Flash-Chat
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 4 accepts 200,000 input tokens compared to LongCat-Flash-Chat's 128,000 tokens. LongCat-Flash-Chat can generate longer responses up to 128,000 tokens, while Claude Opus 4 is limited to 32,000 tokens.

Anthropic
Claude Opus 4
Input200,000 tokens
Output32,000 tokens
Meituan
LongCat-Flash-Chat
Input128,000 tokens
Output128,000 tokens
Tue Apr 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4 supports multimodal inputs, whereas LongCat-Flash-Chat does not.

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

Claude Opus 4

Text
Images
Audio
Video

LongCat-Flash-Chat

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4 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.

Claude Opus 4

Proprietary

Closed source

LongCat-Flash-Chat

MIT

Open weights

Release Timeline

When each model was launched

Claude Opus 4 was released on 2025-05-22, while LongCat-Flash-Chat was released on 2025-08-29.

LongCat-Flash-Chat is 3 months newer than Claude Opus 4.

Claude Opus 4

May 22, 2025

10 months ago

LongCat-Flash-Chat

Aug 29, 2025

7 months ago

3mo newer

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

Claude Opus 4 is available from Anthropic, Bedrock, Google. LongCat-Flash-Chat is available from Meituan.

Claude Opus 4

anthropic logo
Anthropic
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
google logo
Google
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M

LongCat-Flash-Chat

meituan logo
Meituan
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Higher AIME 2025 score (75.5% vs 61.3%)
Higher GPQA score (79.6% vs 73.2%)
Higher SWE-Bench Verified score (72.5% vs 60.4%)
Meituan
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher Terminal-Bench score (39.5% vs 39.2%)
AnthropicClaude Opus 4
MeituanLongCat-Flash-Chat
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Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4
Meituan
LongCat-Flash-Chat

FAQ

Common questions about Claude Opus 4 vs LongCat-Flash-Chat

Claude Opus 4 shows notably better performance in the majority of benchmarks. Claude Opus 4 is made by Anthropic and LongCat-Flash-Chat is made by Meituan. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude Opus 4 scores MMMLU: 88.8%, TAU-bench Retail: 81.4%, GPQA: 79.6%, MMMU (validation): 76.5%, AIME 2025: 75.5%. LongCat-Flash-Chat scores MATH-500: 96.4%, MMLU: 89.7%, IFEval: 89.6%, ZebraLogic: 89.3%, HumanEval: 88.4%.
LongCat-Flash-Chat is 50.0x cheaper for input tokens. Claude Opus 4 costs $15.00/M input and $75.00/M output via anthropic. LongCat-Flash-Chat costs $0.30/M input and $1.20/M output via meituan.
Claude Opus 4 supports 200K tokens and LongCat-Flash-Chat supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 128K), input pricing ($15.00 vs $0.30/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
Claude Opus 4 is developed by Anthropic and LongCat-Flash-Chat is developed by Meituan.