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TrainLoop
ActiveReasoning Fine-Tuning
Winter 2025Founded 20256 peopleSan Francisco, CA, USA
↻ Pivot / rename signal
This company has previously operated under “Phoenix”. A rename frequently marks a pivot in positioning or product — useful raw material for variant ideas.
About
TrainLoop makes it effortless for developers to supercharge LLM performance through reinforcement learning.
Founders · 2
Jackson StokesFounder
Cofounder at TrainLoop, previously Google Gemini & AlphaFold performance
Mason PierceCofounder / CTO
My background is in applying AI models to business use-cases and have always found fine-tuning to be way harder than it should be - My mission is to unlock fine-tuning for all builders :)
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