We train expert models for long horizon tasks.
TrainLoop is a post-training research and product lab. We work with leading pharma, biotech, logistics, and banking enterprises to train specialized models for your most important tasks.
TrainLoop is a post-training research and product lab. We work with leading pharma, biotech, logistics, and banking enterprises to train specialized models for your most important tasks.
About Trainloop
We create AI systems that are as specialized as the human experts that guide them.
We create AI systems that are as specialized as the human experts that guide them.
Our research team uncovers new strategies for long-horizon post-training, and our deployment team works with experts to train their intuition into proprietary models.
Recent Partnerships
Recent Partnerships
Recent Partnerships
A structured approach to co-defining objectives, advancing models, and sustaining performance in production.
A structured approach to co-defining objectives, advancing models, and sustaining performance in production.
OUTCOMES
Our models frequently achieve state of the art or pareto-optimal performance on their task.
Our models frequently achieve state of the art or pareto-optimal performance on their task.
Our models frequently achieve state of the art or pareto-optimal performance on their task.
BLOGS
Research Notes
Read through practical learnings from building and deploying custom models.
Read through practical learnings from building and deploying custom models.
PATHOS
Can We Train a Model
in One Step?
Group Relative Policy Optimization (GRPO) is often the first tool we reach for when training a model for a customer via reinforcement learning. GRPO is an online training loop. You generate from the current policy, score…
Group Relative Policy Optimization (GRPO) is often the first tool we reach for when training a model for a customer via reinforcement learning. GRPO is an online training loop. You generate from the current policy, score generations within...
Multiple Contributors
10 min read
LORA TRAINING DYNAMICS
Learning GSM8K is Inherently
Low-Rank
As an effort to work with the garage door up, this is a collection of some interesting discoveries we made while trying to study how new skills are internalized during finetuning. This is not meant to be a full-fledged…
Multiple Contributors
5 min read
OUR FOCUS
Four Key Research Directions
Four Key Research Directions
Four Key Research Directions
Across these four research directions, we're training models to be more capable, interpretable, and aligned with human objectives.
Across these four research directions, we're training models to be more capable, interpretable, and aligned with human objectives.
Life Sciences
Life Sciences
Modeling biological reasoning for pharmaceutical and biotech companies
Continual Training
Continual Training
Training methods that avoid catastrophic forgetting
Continual Training
Training methods that avoid catastrophic forgetting
Information Theory
Information Theory
Capacity‑aware objectives that promote stable, interpretable reasoning.
Evaluation & Interpretability
Evaluation & Interpretability
Tools to understand both external behavior and internal symbolism of models.
Evaluation & Interpretability
Tools to understand both external behavior and internal symbolism of models.
MODELS
Model Areas
Model Areas
Model Areas
We partner with companies from various industries to identify high-impact opportunities for post-training.
We partner with companies from various industries to identify high-impact opportunities for post-training.
BIO
Biological Reasoning Models
Trainloop partners with pharmaceutical and biotech companies to accelerate drug development with proprietary foundation models for diagnosis and treatment response
BIO
Biological Reasoning Models
Trainloop partners with pharmaceutical and biotech companies to accelerate drug development with proprietary foundation models for diagnosis and treatment response
BIO
Biological Reasoning Models
Trainloop partners with pharmaceutical and biotech companies to accelerate drug development with proprietary foundation models for diagnosis and treatment response
RELIABILITY
Agents for High Risk industries
We train highly reliable agents across financial services and logistics, significantly improving decision accuracy in mission-critical workflows
RELIABILITY
Agents for High Risk industries
We train highly reliable agents across financial services and logistics, significantly improving decision accuracy in mission-critical workflows
RELIABILITY
Agents for High Risk industries
We train highly reliable agents across financial services and logistics, significantly improving decision accuracy in mission-critical workflows
MULTIMODALITY
Multimodal reasoning
We've delivered purpose-built multimodal reasoning systems for complex image understanding and document abstraction
MULTIMODALITY
Multimodal reasoning
We've delivered purpose-built multimodal reasoning systems for complex image understanding and document abstraction
MULTIMODALITY
Multimodal reasoning
We've delivered purpose-built multimodal reasoning systems for complex image understanding and document abstraction
COLLABORATION PROCESS
Research-to-Production Workflow
Research-to-Production Workflow
Research-to-Production Workflow
A structured approach to co-defining objectives, advancing models, and sustaining performance in production.
A structured approach to co-defining objectives, advancing models, and sustaining performance in production.
01
Identification of
Research Objectives.
We jointly define research goals based on your unique data and technological strengths.
02
03
01
Identification of
Research Objectives.
We jointly define research goals based on your unique data and technological strengths.
02
03
01
Identification of
Research Objectives.
We jointly define research goals based on your unique data and technological strengths.
02
03
PARTNERSHIPS
We collaborate with organizations possessing unique datasets or specialized technological resources.
These partnerships seek to leverage these data advantages into academically rigorous, specialized AI models.
PARTNERSHIPS
We collaborate with organizations possessing unique datasets.
We collaborate with organizations possessing unique datasets.
To explore a training partnership, please submit this form.
To explore a training partnership, please submit this form.
Training reasoning models aligned with your goals.
Email: founders@trainloop.ai
LEGAL
© 2026 TrainLoop. All rights reserved.
North Beach, San Francisco, CA
Training reasoning models aligned with your goals.
Email: founders@trainloop.ai
LEGAL
© 2026 TrainLoop. All rights reserved.
North Beach, San Francisco, CA