DeepSeek R1 Zero vs LongCat-Flash-Chat
DeepSeek R1 Zero and LongCat-Flash-Chat are closely matched at 16.0 and 19.8 on the LLM Stats Score.
DeepSeek · Meituan · Updated for 2026
Which is better?
DeepSeek R1 Zero and LongCat-Flash-Chat are closely matched on the overall LLM Stats Score at 16.0 and 19.8.
In the 3 individual benchmarks reported for both models, DeepSeek R1 Zero wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose DeepSeek R1 Zero
- you value its reported benchmark strengths — it wins 2 of 3 exact shared results
Choose LongCat-Flash-Chat
- you want the most recent training data — it shipped Aug 2025
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
4 reported for DeepSeek R1 Zero · 16 for LongCat-Flash-Chat
DeepSeek R1 Zero outperforms in 2 benchmarks (GPQA, LiveCodeBench), while LongCat-Flash-Chat is better at 1 benchmark (MATH-500).
DeepSeek R1 Zero shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Model Size
Parameter count comparison
DeepSeek R1 Zero has 111.0B more parameters than LongCat-Flash-Chat, making it 19.8% larger.
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).
License
Usage and distribution terms
Both models are licensed under MIT.
Both models share the same licensing terms, providing consistent usage rights.
MIT
Open weights
MIT
Open weights
Release Timeline
When each model was launched
DeepSeek R1 Zero was released on 2025-01-20, while LongCat-Flash-Chat was released on 2025-08-29.
LongCat-Flash-Chat is 7 months newer than DeepSeek R1 Zero.
Jan 20, 2025
1.7 years ago
Aug 29, 2025
1.1 years ago
7mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek R1 Zero and LongCat-Flash-Chat side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek R1 Zero vs LongCat-Flash-Chat.