ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter7/user-memory-system-evaluation/default_config.yaml

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+# Full book matrix. Prices are dated provider list prices in the native
+# published currency. Never add an FX conversion without its own dated source.
+#
+# Backend substitutions recorded 2026-07-31 (acceptance is tied to equivalent
+# providers/models, not to one vendor's official API; every substitution is
+# documented here and in README.md):
+# - SiliconFlow is unfunded (HTTP 402 balance=0, key itself valid), so the
+#   BGE-M3 embedding and the BGE cross-encoder reranker cannot run there.
+#   BGE-M3 now runs as the identical model `baai/bge-m3` via OpenRouter.
+#   No reachable cross-encoder reranker remains (DashScope gte-rerank returns
+#   403 AccessDenied on this account, and the mainland endpoint rejects the
+#   international key), so the cross-encoder matrix slot is honestly replaced
+#   by a second LLM reranker, `doubao-semantic`, keeping three distinct
+#   reranking strategies (none / Kimi-LLM / Doubao-LLM).
+# - The direct OpenAI account has zero credits (HTTP 429), so the OpenAI
+#   embedding runs as the identical model `openai/text-embedding-3-small`
+#   via OpenRouter.
+# - Doubao embeddings on Ark require a console-provisioned endpoint id; every
+#   public model name returns 404 InvalidEndpointOrModel on this account.
+#   The slot is honestly replaced by `qwen/qwen3-embedding-8b` via OpenRouter
+#   (Alibaba Qwen3-Embedding-8B, the closest Chinese-provider multilingual
+#   embedding substitute).
+chat_models:
+  kimi:
+    model: kimi-k2.5
+    base_url: https://api.moonshot.cn/v1
+    api_key_env: KIMI_API_KEY
+    disable_thinking: true
+    temperature: 0.6
+    pricing:
+      currency: CNY
+      as_of_date: "2026-07-29"
+      source_url: https://platform.kimi.com/docs/pricing/chat-k25
+      input_per_million: 4.00
+      cached_input_per_million: 0.70
+      output_per_million: 21.00
+      source_note: Published Kimi K2.5 list price; input rate is cache-miss/uncached.
+  doubao:
+    model: doubao-seed-1-6-250615
+    base_url: https://ark.cn-beijing.volces.com/api/v3
+    api_key_env: ARK_API_KEY
+    pricing:
+      currency: CNY
+      as_of_date: "2026-07-31"
+      source_url: https://www.volcengine.com/docs/82379/1544106
+      input_per_million: 0.80
+      output_per_million: 8.00
+      source_note: Published Doubao-Seed-1.6 list price for the 0-32K input-length
+        range (input 0.8 CNY/M, output 8 CNY/M). All matrix prompts are below 32K.
+  openai-mini:
+    model: gpt-4.1-mini
+    base_url: https://api.openai.com/v1
+    api_key_env: OPENAI_API_KEY
+
+embeddings:
+  bge-m3:
+    # Same BAAI/bge-m3 model as the book matrix; provider substituted
+    # SiliconFlow -> OpenRouter on 2026-07-31 (SiliconFlow balance is 0).
+    model: baai/bge-m3
+    base_url: https://openrouter.ai/api/v1
+    api_key_env: OPENROUTER_API_KEY
+    pricing:
+      currency: USD
+      as_of_date: "2026-07-31"
+      source_url: https://openrouter.ai/baai/bge-m3
+      input_per_million: 0.01
+      source_note: OpenRouter catalog price for baai/bge-m3; matches the per-token
+        cost returned by the /api/v1/embeddings/models listing and live usage.
+  openai-small:
+    # Same text-embedding-3-small model as the book matrix; provider substituted
+    # direct OpenAI -> OpenRouter on 2026-07-31 (OpenAI account has no credits).
+    model: openai/text-embedding-3-small
+    base_url: https://openrouter.ai/api/v1
+    api_key_env: OPENROUTER_API_KEY
+    pricing:
+      currency: USD
+      as_of_date: "2026-07-31"
+      source_url: https://openrouter.ai/openai/text-embedding-3-small
+      input_per_million: 0.02
+      source_note: OpenRouter catalog price, identical to the published
+        text-embedding-3-small list price.
+  qwen3:
+    # Substitution for the unavailable Doubao embedding slot (Ark embeddings
+    # need a provisioned endpoint id; all public model names 404 on this
+    # account). Qwen3-Embedding-8B is the closest Chinese-provider multilingual
+    # embedding reachable via OpenRouter.
+    model: qwen/qwen3-embedding-8b
+    base_url: https://openrouter.ai/api/v1
+    api_key_env: OPENROUTER_API_KEY
+    pricing:
+      currency: USD
+      as_of_date: "2026-07-31"
+      source_url: https://openrouter.ai/qwen/qwen3-embedding-8b
+      input_per_million: 0.01
+      source_note: OpenRouter catalog price for qwen/qwen3-embedding-8b.
+  mistral:
+    model: mistral-embed
+    base_url: https://api.mistral.ai/v1
+    api_key_env: MISTRAL_API_KEY
+    pricing:
+      currency: USD
+      as_of_date: "2026-07-29"
+      source_url: https://mistral.ai/pricing/api/
+      input_per_million: 0.10
+      source_note: Published Mistral Embed list price.
+
+rerankers:
+  none:
+    type: none
+  doubao-semantic:
+    # Substitution for the unavailable BGE cross-encoder slot (SiliconFlow
+    # balance 0; DashScope gte-rerank 403 AccessDenied on this account).
+    # A second LLM reranker on a different model keeps three distinct
+    # reranking strategies without pretending a cross-encoder ran.
+    type: llm
+    chat_model: doubao
+  kimi-semantic:
+    type: llm
+    chat_model: kimi
+
+judge:
+  evaluator: kimi
+  model: kimi-k2.5
+
+experiment_7_4:
+  main_model: kimi
+  embedding: mistral
+  reranker: kimi-semantic
+  rounds_per_chunk: 6
+  overlap: 2
+
+experiment_7_11:
+  # The named adapters cover the BGE-M3/OpenAI/Mistral comparison from the
+  # book plus the documented Qwen3 substitution for the unreachable Doubao
+  # embedding endpoint; rerankers compare none / Doubao-LLM / Kimi-LLM after
+  # the documented cross-encoder substitution.
+  embeddings: [bge-m3, openai-small, qwen3, mistral]
+  rerankers: [none, doubao-semantic, kimi-semantic]
+  main_models: [kimi, doubao]
+  retrieval_judge_model: kimi
+  max_search_rounds: 3
+  rounds_per_chunk: 6
+  overlap: 2