Model Fusions
Create a Model Fusion
Create a Model Fusion from a panel, a judge, and a synthesis mode.
POST
Core - Create a Model Fusion
Related guide: Model Fusion guide. See the Model Fusion guide for panels, presets, synthesis modes, and billing.Requires a Management Key with Model fusions access. A standard API Key is rejected.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Body
application/json
Required. Stable lowercase key containing letters, numbers, and hyphens.
Required. One to eight distinct chat/text model references in provider/model format.
Required. Model reference used for strict structured judge output.
Available options:
MODEL_FUSION_SYNTHESIS_MODE_ANALYSIS, MODEL_FUSION_SYNTHESIS_MODE_JUDGE_WRITES_FINAL Available options:
MODEL_FUSION_PRESET_GENERAL, MODEL_FUSION_PRESET_QUALITY, MODEL_FUSION_PRESET_BUDGET, MODEL_FUSION_PRESET_CODE, MODEL_FUSION_PRESET_SAFETY Required for analysis mode and invalid for judge_writes_final mode.
Optional. Defaults to true.
Optional. Defaults to 8 and must be between 0 and 20. Zero disables Fusion-managed tool calls.
Optional. Defaults to true.
Response
OK