Categories · 2
From Ebbinghaus, H.M., working memory, and engrams to Mem0, Letta, Graphiti, LangMem, Cognee, and MemoryOS: a history of memory paradigms and a code-level comparison of what open-source agent memory systems actually implement.
Aliyun's four-engine table — Ollama / vLLM / SGLang / HF Pipeline — is no longer enough in 2026. This piece re-maps inference engines into three tiers (Local → High-Performance Serving → Distributed/Disaggregated), covering 8 mainstream engines plus three new trends — PD disaggregation, speculative decoding, and FP4 quantization — with a decision matrix and a decision tree.