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Guides & comparisons

Long-form notes on where decision models fit — versus routing layers, judges and local deployments.

  • Semantic Router alternative: decision models for routing decisions
  • RouteLLM vs decision models: routing between models vs deciding directly
  • Decision models on OpenRouter vs a dedicated decision gateway
  • Run pplx-decider locally with Ollama, or call it hosted?
  • Decision model pricing comparison — the full catalog, live
  • typesafe-sdk quickstart: swap base_url, keep everything else
  • System 1 vs System 2 models: decision models vs generative LLMs
  • DecisionBench and choosing a decision model
  • typesafe/jev-latest vs perplexity/pplx-decider-v1.2
  • typesafe/jev-latest vs liquid/d1-ultra
  • perplexity/pplx-decider-v1.2 vs nace-ai/drex-max
EASYJEV

EasyJev hosts the full System One decision-model catalog behind one typesafe-sdk-compatible endpoint: token-precise billing, free output tokens, live playground.

Model Square

  • typesafe/jev-1.13
  • typesafe/jev-1.14
  • typesafe/jev-latest
  • perplexity/pplx-decider-v1.2
  • perplexity/pplx-decider-flash-v1.2
  • baseten/mammoth-1
  • baseten/elephant-1
  • baseten/joey-1
  • nace-ai/drex-max
  • nace-ai/drex-v2.0
  • nace-ai/drex-v1.5
  • liquid/d1.1
  • Browse all decision models

Use Cases

  • Intent Classification & Routing API — millisecond decisions
  • Content Moderation Pre-Filter API — decisions before generation
  • API & Command Permission Checks — decisions, not generations
  • LLM-as-a-Judge, without paying for verdicts — decision models
  • Scoring & Grading API — ordinal scores with calibrated confidence
  • State-machine decisions — branch your workflow on typed answers
  • Guides

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