About Hedra
Hedra is a pioneering generative media company backed by top investors at Index, A16Z, and Abstract Ventures. We're building Hedra Studio, a multimodal creation platform capable of control, emotion, and creative intelligence.
At the core of Hedra Studio is our Character-3 foundation model, the first omnimodal model in production. Character-3 jointly reasons across image, text, and audio for more intelligent video generation — it’s the next evolution of AI-driven content creation.
At Hedra, we’re a team of hard-working, passionate individuals seeking to fundamentally change content creation and build a generational company together. We value startup energy, initiative, and the ability to turn bold ideas into real products. Our team is fully in-person in SF/NY with a shared love for whiteboard problem-solving.
Overview
We are seeking a highly motivated Research Scientist to push the limits of long-form video generation, with a focus on auto-regressive modeling, causal attention mechanisms, and efficient sequence handling. The ideal candidate will have a deep understanding of temporal modeling in generative AI and experience building scalable architectures for multi-minute coherent video outputs.
Responsibilities
Design and implement long video generation architectures, with emphasis on auto-regressive generation, causal attention, and memory-efficient transformer designs.
Develop methods for maintaining temporal and semantic coherence over long time horizons.
Work closely with engineering to integrate research into production-grade pipelines.
Stay on top of recent advances in long-context transformers, sequence compression, and scalable video generation.
Present results internally and externally, including possible top-tier conference submissions.
Qualifications
PhD or strong research/industry experience in Computer Science, Machine Learning, or related fields, with a focus on sequence modeling or generative models.
Deep understanding of transformer architectures, attention mechanisms, and auto-regressive modeling.
Experience with long-context processing and memory-efficient computation.
Proficiency in Python and PyTorch; ability to rapidly prototype and iterate on new architectures.
A record of impactful research or large-scale system deployments.
Benefits
Competitive compensation + equity
401k (no match)
Healthcare (Silver PPO Medical, Vision, Dental)
Lunch and snacks at the office
We encourage you to apply even if you don't meet every requirement — we value curiosity, creativity, and the drive to solve hard problems.
Top Skills
What We Do
Hedra is an AI native platform for multimodal creation. The platform is built around their own cutting-edge proprietary video model, Character-3, which is the first multimodal model in production. Alongside Character-3, the platform also brings other leading foundation models into one ecosystem spanning generative images, video, and audio. Prosumer and enterprise users leverage Hedra to generate content ranging from viral social media to branded content marketing.
Why Work With Us
We're an early-stage team that moves very fast and is building at the leading edge of AI/Media. Every employee takes on a lot of ownership and has an opportunity to learn and grow rapidly.
Gallery
Hedra Offices
OnSite Workspace
Hedra's main office is in San Francisco and secondary hub is in New York.
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