What thinking model can I use if I don’t have one trained?

[fb20w8]

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I’m working on a project that involves reasoning or decision-making, but I currently don’t have a custom-trained model. I was wondering — are there any pre-trained models or frameworks I can use to simulate “thinking” or logical flows without having to train my own model from scratch?

Ideally something open-source or easy to integrate, even rule-based if needed.
I’m exploring general-purpose logic and behavior modeling — nothing too domain-specific for now.

Any suggestions or best practices are welcome. Thanks!

[Fabian1803]

Great question!

If you don’t have a trained model but still want to simulate reasoning or decision-making, there are a few good options depending on what you're trying to build.

For logic-based flows, you can use rule engines like Node-RED, Prolog, or even lightweight finite state machines (FSMs) — great for building structured "thinking" without ML. If you're working in Python, check out experta (a rule-based engine).

If you're looking for something more like "pseudo-AI", OpenAI’s GPT, Hugging Face’s transformers, or Anthropic's Claude can act as pretrained models with strong reasoning skills — you can use their APIs without training anything.

Also, if it's game logic or behavior simulation, tools like Behavior Trees or GOAP (Goal-Oriented Action Planning) might fit well.

No need to train a model from scratch unless your use case is highly specialized. Plenty of good building blocks out there!