route.yaml.example

# Model routing: send each prompt to the best single model by difficulty.
# With `mode: never` the router never fuses — it just picks one model per prompt
# (cheap for easy prompts, frontier for hard ones). Use `mode: heuristic` instead
# to fuse the hard prompts and route only the easy ones.
#
# Copy to openfusion.yaml and set OPENROUTER_API_KEY.

router:
  enabled: true
  mode: never           # never | heuristic | always | model
  route_models:
    - model: openai/gpt-4o-mini
      tier: fast         # short / simple prompts
    - model: deepseek/deepseek-v4-pro
      tier: balanced
    - model: anthropic/claude-sonnet-4
      tier: strong       # long, analytical, or code prompts

# A panel is still required (used when the router decides to fuse, and for the
# default credentials the routed models reuse).
panel:
  - base_url: https://openrouter.ai/api/v1
    api_key: ${OPENROUTER_API_KEY}
    model: openai/gpt-4o-mini
    label: panel

judge:
  base_url: https://openrouter.ai/api/v1
  api_key: ${OPENROUTER_API_KEY}
  model: deepseek/deepseek-v4-pro

pass_through:
  base_url: https://openrouter.ai/api/v1
  api_key: ${OPENROUTER_API_KEY}
  model: openai/gpt-4o-mini

gateway:
  api_keys: []