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Llama-3.1 Nemotron Ultra 253B vs Seed-1.8
Comprehensive side-by-side LLM comparison
Seed-1.8 supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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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.
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ByteDance
Seed-1.8, developed by ByteDance Seed, is a generalized agentic large language model supporting text and image input, with industry-leading GUI agent capabilities and improvements in multimodal reasoning over its predecessor Seed1.5-VL. It targets information retrieval, code generation, GUI interaction, and complex agentic workflows requiring robust multimodal understanding.
8 months newer
Llama-3.1 Nemotron Ultra 253B
NVIDIA
2025-04-07
Seed-1.8
ByteDance
2025-12-18
Provider Availability & Performance
Available providers and their performance metrics
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Llama-3.1 Nemotron Ultra 253B
0 providers
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Seed-1.8
0 providers
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Llama-3.1 Nemotron Ultra 253B
Avg Score:0.0%
Providers:0
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Seed-1.8
Avg Score:0.0%
Providers:0