- Contemporary and Kafka personas search only "Die Verwandlung" (own index and tool description); per-persona subtitle
- New contemporary portrait and avatar alt text
- ChatGPT: gpt-6.1-sol, reasoning_effort low via Responses API; default in the model menu
- GPT-Realtime-2.1 Mini as third option (realtime_chat.py, WebSocket, text only)
- Load .env for OPENAI_API_KEY
- Reranker in fp16 on GPU with 25 candidates; reranker, embeddings and BM25 shared and built at server start
- BM25 stem cache (first search ~31s -> ~1.7s)
- Timing output per LLM call and search
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Philipp MockandClaude Opus 5.5
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