Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V3.2, released by DeepSeek on December 1, 2025, is a large language model with 685 billion total parameters featuring integrated thinking in tool-use and support for both reasoning and direct generation modes. It features a 128K token context window and introduced large-scale agent training across 1,800+ environments. DeepSeek-V3.2 targets agentic workflows, complex instruction following, and coding tasks under an open MIT license.
NVIDIA
Llama-3.1-Nemotron-Ultra-253B-v1 is a 253-billion-parameter model from NVIDIA, derived from Meta's Llama 3.1 405B using neural architecture search (NAS) compression combined with NVIDIA's Nemotron post-training pipeline, which recovers and exceeds the base model's capability after structural compression. Released in April 2025, it supports toggling between a standard instruction mode and an extended reasoning mode via system prompt, allowing the same model to handle both rapid responses and deliberate chain-of-thought tasks. It is the flagship of the Nemotron family, available open-weight on HuggingFace and through NVIDIA NIM for enterprise inference.
7 months newer

Llama-3.1 Nemotron Ultra 253B
NVIDIA
2025-04-07

DeepSeek-V3.2
DeepSeek
2025-12-01
Context window and performance specifications
Available providers and their performance metrics
DeepSeek-V3.2
DeepSeek
Llama-3.1 Nemotron Ultra 253B
DeepSeek-V3.2
Llama-3.1 Nemotron Ultra 253B
DeepSeek-V3.2
Llama-3.1 Nemotron Ultra 253B