DeepSeek R1 Zero vs DeepSeek-V2.5
DeepSeek R1 Zero leads the LLM Stats Score 16.1 to 8.4.
DeepSeek · DeepSeek · Updated for 2026
Which is better?
DeepSeek R1 Zero leads the overall LLM Stats Score 16.1 to 8.4, ranking #213 overall.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose DeepSeek R1 Zero
- overall performance matters — it scores 16.1 and ranks #213 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you want the most recent training data — it shipped Jan 2025
Choose DeepSeek-V2.5
- you want predictable pricing at $0.14/M input and $0.28/M output
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 · 15 for DeepSeek-V2.5
DeepSeek R1 Zero and DeepSeek-V2.5don'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
Model Size
Parameter count comparison
DeepSeek R1 Zero has 435.0B more parameters than DeepSeek-V2.5, making it 184.3% larger.
Context Window
Maximum input and output token capacity
Only DeepSeek-V2.5 specifies input context (8,192 tokens). Only DeepSeek-V2.5 specifies output context (8,192 tokens).
License
Usage and distribution terms
DeepSeek R1 Zero is licensed under MIT, while DeepSeek-V2.5 uses deepseek.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
deepseek
Open weights
Release Timeline
When each model was launched
DeepSeek R1 Zero was released on 2025-01-20, while DeepSeek-V2.5 was released on 2024-05-08.
DeepSeek R1 Zero is 9 months newer than DeepSeek-V2.5.
Jan 20, 2025
1.6 years ago
8mo newerMay 8, 2024
2.3 years ago
Knowledge 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 DeepSeek-V2.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek R1 Zero vs DeepSeek-V2.5.