Claude 3.7 Sonnet vs LongCat-Flash-Thinking-2601 Comparison

Comparing Claude 3.7 Sonnet and LongCat-Flash-Thinking-2601 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude 3.7 Sonnet outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while LongCat-Flash-Thinking-2601 is better at 1 benchmark (AIME 2025).

Claude 3.7 Sonnet shows notably better performance in the majority of benchmarks.

Tue Mar 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

LongCat-Flash-Thinking-2601 costs less

For input processing, Claude 3.7 Sonnet ($3.00/1M tokens) is 10.0x more expensive than LongCat-Flash-Thinking-2601 ($0.30/1M tokens).

For output processing, Claude 3.7 Sonnet ($15.00/1M tokens) is 12.5x more expensive than LongCat-Flash-Thinking-2601 ($1.20/1M tokens).

In conclusion, Claude 3.7 Sonnet is more expensive than LongCat-Flash-Thinking-2601.*

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

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Claude 3.7 Sonnet

Input tokens$3.00

Output tokens$15.00

Best providerAnthropic

LongCat-Flash-Thinking-2601

Input tokens$0.30

Output tokens$1.20

Best providerMeituan

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Context Window

Maximum input and output token capacity

Claude 3.7 Sonnet accepts 200,000 input tokens compared to LongCat-Flash-Thinking-2601's 128,000 tokens. Both models can generate responses up to 128,000 tokens.

Claude 3.7 Sonnet

Input200,000 tokens

Output128,000 tokens

LongCat-Flash-Thinking-2601

Input128,000 tokens

Output128,000 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3.7 Sonnet supports multimodal inputs, whereas LongCat-Flash-Thinking-2601 does not.

Claude 3.7 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3.7 Sonnet

Text

Images

Audio

Video

LongCat-Flash-Thinking-2601

Text

Images

Audio

Video

License

Usage and distribution terms

Claude 3.7 Sonnet is licensed under a proprietary license, while LongCat-Flash-Thinking-2601 uses MIT.

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

Claude 3.7 Sonnet

Proprietary

Closed source

LongCat-Flash-Thinking-2601

MIT

Open weights

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while LongCat-Flash-Thinking-2601 was released on 2026-01-14.

LongCat-Flash-Thinking-2601 is 11 months newer than Claude 3.7 Sonnet.

Claude 3.7 Sonnet

Feb 24, 2025

1.1 years ago

LongCat-Flash-Thinking-2601

Jan 14, 2026

2 months ago

10mo 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 3.7 Sonnet is available from Anthropic, Bedrock, Google. LongCat-Flash-Thinking-2601 is available from Meituan. The availability of providers can affect quality of the model and reliability.