+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Llama-3.1 Nemotron Ultra 253B vs o3 mini
Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
+
+
+
+
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.
+
+
+
+
OpenAI
OpenAI o3 mini, released by OpenAI in January 2025, is a compact reasoning model from the o3 family designed for efficient, cost-effective STEM problem-solving. It features a 200K token context window and adjustable chain-of-thought effort settings, allowing developers to trade reasoning depth for speed. o3 mini targets science, mathematics, and coding applications where lower inference cost and faster response times are a priority.
2 months newer
o3 mini
OpenAI
2025-01-31
Llama-3.1 Nemotron Ultra 253B
NVIDIA
2025-04-07
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Llama-3.1 Nemotron Ultra 253B
0 providers
+
+
+
+
o3 mini
1 providers
OpenAI
+
+
+
+
Llama-3.1 Nemotron Ultra 253B
Avg Score:0.0%
Providers:0
+
+
+
+
o3 mini
Avg Score:0.0%
Providers:1