Definition
The Decisions API is an openai product announced at DevDay 2026 that provides fast, low-cost structured classification
Related pattern: wemoney Agentic Assess provides source-linked evidence trails for credit decisions on open-banking data — domain-specific explainability vs. generic classification API. — giving a model (e.g. gpt-6-luna) a predefined set of options and returning probability-weighted choices. Functionally mirrors jev from typesafe-ai.
Key Points
- Use case: Agent action monitoring — classify each agentic step against allowed behaviors at fraction of frontier LLM cost
- Cost comparison: Demo monitoring ~372 with frontier LLM per Shapor Naghibzadeh benchmark cited in coverage
- Architecture: System One-style classifier built on LLM backbone — not free-form text generation
TypeSafe CEO diogo-almeida (former OpenAI RL engineer) joked about "clone wars" on X after the announcement.
Related
- jev
- typesafe-ai
- calibrated-decisions
- system-one-models
- trajectory-level-monitoring
- misalignment-monitoring
- openai
- agent-eval-monitoring