# 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