← Anthropic Interview Insights

Anthropic·Machine Learning Engineer·Technical Phone Screen·Senior

Senior
Jul 2026

Summary

Interviewed for an ML engineer role at Anthropic. One technical question about controlling model creativity, which sounds deceptively simple but actually has a lot of depth to it once you get into the weeds.

Questions Asked (1)

Q1

How do you control or adjust the creativity of generative AI models?

Technical Trade-offsSystem Design
Author's notes

Went straight to temperature and top-p sampling, which is the obvious answer, but then they pushed further and I realized I hadn't thought carefully about the tradeoffs between them.

Create a free account to read the full note

AI HintsAI Generated

Suggested Approach

Start by defining creativity in generative AI as a spectrum from deterministic to highly stochastic outputs, then systematically cover the main techniques for control: sampling parameters, conditioning, architectural modifications, and post-hoc filtering. Emphasize trade-offs between creativity and coherence, and how to choose the right method based on application requirements and constraints.

Pro tip: Frame creativity control as a multi-dimensional problem—not just temperature—and discuss how you would evaluate and iterate on these controls in production, showing you think beyond one-off solutions.

1. Define creativity and its dimensions

Clarify what creativity means in the context of generative models: novelty, diversity, surprise, and coherence. Explain that control involves balancing these dimensions.

2. Sampling-level controls

Discuss techniques like temperature scaling, top-k sampling, nucleus (top-p) sampling, and beam search. Explain how each affects the randomness and diversity of outputs.

3. Conditioning and guidance

Cover methods such as prompt engineering, classifier-free guidance, and control codes (e.g., style tokens) that steer generation without changing the model architecture.

4. Architectural and training-time approaches

Mention fine-tuning, reinforcement learning from human feedback (RLHF), and latent space manipulation (e.g., in VAEs or GANs) to inherently adjust creativity.

5. Post-processing and evaluation

Describe filtering, reranking, and human-in-the-loop evaluation to ensure outputs meet creativity and quality standards. Highlight metrics like perplexity, diversity scores, and human judgments.

Key Points to Mention

  • Temperature, top-k, and top-p sampling and their impact on output diversity and coherence.
  • Classifier-free guidance and its role in balancing prompt adherence and creativity.
  • Fine-tuning and RLHF to align model behavior with desired creativity levels.
  • Latent space interpolation and manipulation for controlled generation in VAEs and GANs.
  • Trade-offs between creativity and factuality/coherence, and how to navigate them.
  • Evaluation metrics and human evaluation for creativity, such as diversity, novelty, and user studies.

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.