{"slug": "s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research", "title": "S4 vs Mamba vs RWKV — what's the difference? | Rudrite Research", "summary": "Rudrite Research published a comparison of three post-Transformer sequence models — S4, Mamba, and RWKV — highlighting their approaches to achieving linear computational cost while maintaining quality. The analysis explains how each model differs: S4 uses a structured state space, Mamba introduces a selective mechanism, and RWKV employs linear-attention RNN. The comparison aims to clarify the trade-offs for researchers and practitioners.", "body_md": "# S4 vs Mamba vs RWKV\n\nThe post-Transformer sequence lineage — a structured state space, a selective one, and a linear-attention RNN, all chasing linear cost without losing quality.\n\nA clear, side-by-side comparison with examples — part of Rudrite Research.", "url": "https://wpnews.pro/news/s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research", "canonical_source": "https://research.rudrite.com/compare/s4-vs-mamba-vs-rwkv", "published_at": "2026-06-14 00:00:00+00:00", "updated_at": "2026-06-14 18:17:16.399599+00:00", "lang": "en", "topics": ["machine-learning", "large-language-models", "neural-networks", "ai-research"], "entities": ["S4", "Mamba", "RWKV", "Rudrite Research"], "alternates": {"html": "https://wpnews.pro/news/s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research", "markdown": "https://wpnews.pro/news/s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research.md", "text": "https://wpnews.pro/news/s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research.txt", "jsonld": "https://wpnews.pro/news/s4-vs-mamba-vs-rwkv-what-s-the-difference-rudrite-research.jsonld"}}