Chitwan Saharia
Chitwan Saharia is a machine learning researcher whose work spans grounded language learning and generative image and video models. He earned a B.Tech. in computer science and engineering at IIT Bombay in 2019 and coauthored BabyAI during his undergraduate years. His research papers include SR3, Palette, Imagen and Imagen Video. Imagen combined large language models with diffusion for text-to-image generation and won a NeurIPS Outstanding Paper award; he co-founded Ideogram in December 2022, whose text-to-image product rendered reliable words inside images in 2023. Since December 2025, he is an AI Research Scientist at Meta.
Timeline
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2018–2019
BabyAI at Mila
During his undergraduate studies at IIT Bombay, he interns at Mila in Montreal under Yoshua Bengio and Dzmitry Bahdanau and studies sample efficiency for grounded language learning. He coauthors BabyAI, a platform for that research, with its first arXiv version submitted in 2018 and a revision in 2019.
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2019
BTech at IIT Bombay
At IIT Bombay, he completes a B.Tech. in computer science and engineering in 2019.
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July 2021
SR3 at Google Research
In July 2021, he works as a software engineer on Google Research's Brain Team and coauthors SR3, which adapts denoising diffusion models for image super-resolution through repeated refinement.
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2022
Palette for image translation
In 2022, he coauthors Palette, a conditional diffusion framework for image-to-image translation across colorization, inpainting, uncropping and JPEG restoration.
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2022
Imagen and a NeurIPS award
He coauthors Imagen in 2022, a text-to-image diffusion model that combines large transformer language models with high-fidelity diffusion models. The paper wins a NeurIPS 2022 Outstanding Paper award.
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2022
Imagen Video for text-to-video
In 2022, he coauthors Imagen Video, a text-conditional video system that generates high-definition video through a cascade of diffusion models.
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December 2022–October 2025
Co-founding Ideogram
He co-founds Ideogram in December 2022 and stays with the company through October 2025. By September 2023, the company's text-to-image product renders reliable words inside images.
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Since December 2025
AI Research Scientist at Meta
He joins Meta as an AI Research Scientist in December 2025.
Career
- Since 2025MetaAI Research Scientist
- 2022–2025IdeogramCo-founder
- 2021Google ResearchSoftware engineer
- Until 2019MilaResearch intern
Education
- 2019IIT BombayB.Tech.
Sources and credits
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- Chitwan Saharia
- BabyAI: A Platform to Study the Sample Efficiency of Grounded Language Learning
- people | Preethi Jyothi
- High Fidelity Image Generation Using Diffusion Models
- Image Super-Resolution via Iterative Refinement
- Palette: Image-to-Image Diffusion Models
- Photorealistic Text-to-Image Diffusion Models with Deep Language Understanding
- Announcing the NeurIPS 2022 Awards
- Imagen Video: High Definition Video Generation with Diffusion Models
- Find Chitwan Saharia's email & phone number - AI Research Scientist at Meta, San Francisco Bay Area | SignalHire
- Ideogram.ai


