Startups · AI

Research Intern, Model Shaping (Winter 2027)

Together AI · San Francisco, Amsterdam · On-site

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About Together AI

Build what's next on the AI Native Cloud. Full-stack AI platform for inference, fine-tuning, and GPU clusters — powered by cutting-edge research. Backed by General Catalyst, Kleiner Perkins and NEA.

About the role

As a Research Intern in the Model Shaping team, you will work on one or more of the following areas:

What they're looking for

  • Currently pursuing a Bachelor's, Master's, or Ph.D. degree in Computer Science, Electrical Engineering, or a related field
  • Strong knowledge of Machine Learning and Deep Learning fundamentals
  • Experience with deep learning frameworks (PyTorch, JAX, etc.)
  • Familiarity with the Transformer architecture and recent developments in foundation models
More about this role

As a Research Intern in the Model Shaping team, you will work on one or more of the following areas:

  • Advanced post-training methods across supervised learning, preference optimization, and reinforcement learning
  • New techniques and systems for efficient training of neural networks (e.g., distributed training, algorithmic improvements, optimization methods)
  • Robust and reliable evaluation of foundation model capabilities

The Model Shaping team at Together AI works on products and research for tailoring open foundation models to downstream applications. We build services that allow machine learning developers to choose the best models for their tasks and further improve these models using domain-specific data. In addition to that, we develop new methods for more efficient model training and evaluation, drawing inspiration from a broad spectrum of ideas across machine learning, natural language processing, and ML systems.

Past research led by Model Shaping interns resulted in the following publications:

  • Escaping the Verifier: Learning to Reason via Demonstrations (ICML 2026)
  • Untied Ulysses: Memory-Efficient Context Parallelism via Headwise Chunking (ICML 2026)
  • ​​ FFT-based...

Read the full posting on Together AI's site ↗

Research

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