Siddharth Gandhi
Siddharth Gandhi is an AI researcher whose publications span code retrieval, multimodal generation, language models, and speech systems. He earned an MS at Carnegie Mellon in 2024. In 2025, he coauthored a repository code-search system, a joint text-and-image diffusion model, Magistral, Voxtral, and Devstral. In 2026, he coauthored Ministral 3, Voxtral Realtime, and Voxtral TTS. He is a deep learning researcher at Mistral AI and has worked there since 2025.
- Now at
- Mistral AI
- Works
- 15
- Citations
- 11
- h-index
- 2
- Badges
Publication numbers from OpenAlex, as of 22 October 2026.
Timeline
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2024
An MS at Carnegie Mellon
He earns an MS at Carnegie Mellon in 2024.
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February 2025
Repository code search
In February 2025, he coauthors Repository-level Code Search with Neural Retrieval Methods with Luyu Gao and Jamie Callan. The system combines BM25 retrieval over commit messages with a CodeBERT reranker to find files relevant to a question or bug.
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March 2025
Text-and-image diffusion
In March 2025, he coauthors Unified Multimodal Discrete Diffusion with Alexander Swerdlow, Mihir Prabhudesai, Deepak Pathak, and Katerina Fragkiadaki. The model jointly understands and generates text and images, with multimodal inpainting and controllable generation.
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June 2025
Mistral's first reasoning model
In June 2025, he coauthors Magistral, Mistral's first reasoning model and a scalable reinforcement-learning pipeline. Magistral Medium is trained on Mistral Medium 3 with reinforcement learning, and Magistral Small is released under Apache 2.0.
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July–August 2025
Audio and coding models
In July 2025, he coauthors Voxtral Mini and Voxtral Small, multimodal audio chat models that handle spoken audio and text documents. In August 2025, he coauthors Devstral-Small, a lightweight open-source model for coding agents.
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January 2026
Ministral 3
In January 2026, he coauthors Ministral 3, a family of parameter-efficient dense language models designed for compute- and memory-constrained applications.
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February–March 2026
Voxtral speech models
In February 2026, he coauthors Voxtral Realtime, a natively streaming automatic speech recognition model trained end to end. In March 2026, he coauthors Voxtral TTS, an expressive multilingual text-to-speech model.
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Since 2025
Deep learning at Mistral AI
Since 2025, he works as a deep learning researcher at Mistral AI. In September 2026, he remains affiliated with the company.
Career
- Since 2025Mistral AIDeep learning researcher
Education
Most-cited works
- Ministral 3With Abhinav Rastogi, Alexander H. Liu, Alexandre Sablayrolles, Amélie Héliou, Andy Ehrenberg and Andy Lo
- MagistralWith Alexander H. Liu, Alexandre Sablayrolles, Amélie Héliou, Andy Ehrenberg, Baptiste Bout and Baudouin De Monicault
- Hybrid Machine Learning Based Heart Disease Detection
- In-vitro evaluation of the antimicrobial activities of lichen Usnea ghattensis
- Cell autonomous and non-cell autonomous mechanisms of disease in VCP-related ALS
Sources and credits
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