Glossary
Session Memory (AI)
The conversation history an AI uses to maintain context within an active chat.
Full definition
Session memory is the recent context an AI considers when generating each reply. For long conversations, the full history exceeds the AI's context window (typically 8K-128K tokens). Solutions: (1) sliding window — keep only the last N messages; (2) summarization — periodically summarize older messages into a compact form; (3) hierarchical memory — recent messages full-text + older messages summarized + key facts stored as custom fields. Fiko uses summarization + custom field extraction for maximum context efficiency.
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