
Mohammad Heydary developed and maintained advanced edge AI tooling in the google-ai-edge/ai-edge-torch and LiteRT-LM repositories, focusing on robust model export, efficient on-device inference, and streamlined deployment workflows. He engineered features such as dynamic batch size handling, LoRA adapter integration, and TOML-driven configuration for reproducible builds, leveraging C++, Python, and TensorFlow Lite. His work included memory alignment fixes, tokenizer API enhancements, and XNNPACK integration to improve performance and reliability. Through careful code refactoring, dependency management, and CI/CD optimization, Mohammad delivered maintainable, production-ready solutions that addressed real-world deployment challenges and enabled scalable, flexible machine learning on edge devices.

October 2025 monthly performance summary for google-ai-edge/LiteRT-LM focusing on delivering high-value features, improving performance, and enhancing stability. Implemented tokenizer API enhancements with TokenToId and streamlined tokenizer interface, integrated XNNPACK with LiteRT-LM including flag preservation, extended TOML config path handling for portable configurations, and advanced profiling/memory reporting for better observability. Hardened model response processing to guard against missing code_fence_start. Prepared the groundwork for robust deployment with logging output modernization to simplify integration.
October 2025 monthly performance summary for google-ai-edge/LiteRT-LM focusing on delivering high-value features, improving performance, and enhancing stability. Implemented tokenizer API enhancements with TokenToId and streamlined tokenizer interface, integrated XNNPACK with LiteRT-LM including flag preservation, extended TOML config path handling for portable configurations, and advanced profiling/memory reporting for better observability. Hardened model response processing to guard against missing code_fence_start. Prepared the groundwork for robust deployment with logging output modernization to simplify integration.
September 2025 monthly summary: Delivered across three repos with emphasis on reliability, maintainability, and developer experience. Key outcomes include a bug fix to ensure XNNPACK weight cache integrity in TensorFlow, removal of the LiteRT-LM writer tool to streamline the codebase, introduction of stricter Python type checks in tests, refactoring of a CLI entry point to absl.app for consistency, and clarified documentation on C++ text generator conversion flags. These changes reduce build risk, simplify maintenance, and improve user guidance, enabling faster, safer iterations and deployments.
September 2025 monthly summary: Delivered across three repos with emphasis on reliability, maintainability, and developer experience. Key outcomes include a bug fix to ensure XNNPACK weight cache integrity in TensorFlow, removal of the LiteRT-LM writer tool to streamline the codebase, introduction of stricter Python type checks in tests, refactoring of a CLI entry point to absl.app for consistency, and clarified documentation on C++ text generator conversion flags. These changes reduce build risk, simplify maintenance, and improve user guidance, enabling faster, safer iterations and deployments.
Monthly summary for 2025-08 focusing on delivering a configuration-driven, scriptable workflow for LiteRT-LM file construction to accelerate deployment and experimentation. Implemented TOML-based file construction and a CLI to build LiteRT-LM files from TOML configurations or CLI input. Ingested model, tokenizer, and metadata configurations via TOML, including system metadata, LLM metadata, and TFLite models. Streamlined scriptable, programmatic LiteRT-LM file creation, enabling reproducible builds and easier integration with data pipelines and CI/CD. No major bugs fixed this month; maintenance focused on stability and documentation.
Monthly summary for 2025-08 focusing on delivering a configuration-driven, scriptable workflow for LiteRT-LM file construction to accelerate deployment and experimentation. Implemented TOML-based file construction and a CLI to build LiteRT-LM files from TOML configurations or CLI input. Ingested model, tokenizer, and metadata configurations via TOML, including system metadata, LLM metadata, and TFLite models. Streamlined scriptable, programmatic LiteRT-LM file creation, enabling reproducible builds and easier integration with data pipelines and CI/CD. No major bugs fixed this month; maintenance focused on stability and documentation.
April 2025 monthly summary for google-ai-edge/ai-edge-torch focused on packaging reliability and install stability. No new user-facing features were released this month. The primary delivered change was a Pip Packaging Dependency Declaration Fix to ensure proper installation via pip by listing 'multipledispatch' and 'transformers' as separate dependencies in setup.py. This fix reduces onboarding friction and strengthens CI reliability for downstream work. Key commit: 67244ba0116ce2f8db1790db004ebce40e1829e5
April 2025 monthly summary for google-ai-edge/ai-edge-torch focused on packaging reliability and install stability. No new user-facing features were released this month. The primary delivered change was a Pip Packaging Dependency Declaration Fix to ensure proper installation via pip by listing 'multipledispatch' and 'transformers' as separate dependencies in setup.py. This fix reduces onboarding friction and strengthens CI reliability for downstream work. Key commit: 67244ba0116ce2f8db1790db004ebce40e1829e5
March 2025 monthly summary for google-ai-edge/ai-edge-torch: Delivered API simplifications and a deployment performance improvement. Key features include (1) API cleanup by removing an unused batch_size parameter from AttentionBlock2D and CrossAttentionBlock2D initializations (blocks_2d.py), reducing API surface and maintenance burden, with commit 980f168f268bde98487e35750d1e22e44072cbde; and (2) a performance/configuration enhancement by introducing ModelConfig.use_mask_cache to speed up static model exports via a mask cache (default True, incompatible with dynamic exports), with commit 4dbc4abaefb37f29afec461f3a17cb7bf57bcda9. No critical bugs were fixed this month. Overall impact includes a cleaner API, reduced maintenance overhead, and faster static export/inference, enabling more reliable edge deployments. Technologies demonstrated: Python refactoring, API design, configuration management, and performance optimization. Business value: smoother maintenance, faster deployment cycles, and improved inference speed for static exports.
March 2025 monthly summary for google-ai-edge/ai-edge-torch: Delivered API simplifications and a deployment performance improvement. Key features include (1) API cleanup by removing an unused batch_size parameter from AttentionBlock2D and CrossAttentionBlock2D initializations (blocks_2d.py), reducing API surface and maintenance burden, with commit 980f168f268bde98487e35750d1e22e44072cbde; and (2) a performance/configuration enhancement by introducing ModelConfig.use_mask_cache to speed up static model exports via a mask cache (default True, incompatible with dynamic exports), with commit 4dbc4abaefb37f29afec461f3a17cb7bf57bcda9. No critical bugs were fixed this month. Overall impact includes a cleaner API, reduced maintenance overhead, and faster static export/inference, enabling more reliable edge deployments. Technologies demonstrated: Python refactoring, API design, configuration management, and performance optimization. Business value: smoother maintenance, faster deployment cycles, and improved inference speed for static exports.
February 2025: Focused on feature delivery to boost deployment flexibility and inference scalability for google-ai-edge/ai-edge-torch. Implemented dynamic batch size handling for model export and KVCache, enabling custom batch sizes in the decode signature and refactoring utilities to remove fixed batch_size parameters. No major bugs fixed this month; broader impact centers on code maintainability, adaptability to diverse inference workloads, and business value through easier production deployment.
February 2025: Focused on feature delivery to boost deployment flexibility and inference scalability for google-ai-edge/ai-edge-torch. Implemented dynamic batch size handling for model export and KVCache, enabling custom batch sizes in the decode signature and refactoring utilities to remove fixed batch_size parameters. No major bugs fixed this month; broader impact centers on code maintainability, adaptability to diverse inference workloads, and business value through easier production deployment.
January 2025 performance summary for google-ai-edge/ai-edge-torch. Key deliverables focused on enabling parameter-efficient fine-tuning on edge devices and improving integration clarity for downstream ML workflows.
January 2025 performance summary for google-ai-edge/ai-edge-torch. Key deliverables focused on enabling parameter-efficient fine-tuning on edge devices and improving integration clarity for downstream ML workflows.
Month 2024-12 — Repository: google-ai-edge/ai-edge-torch. Focused on delivering on-device text generation improvements and maintainability enhancements to boost edge performance and developer productivity. No major bugs fixed this month.
Month 2024-12 — Repository: google-ai-edge/ai-edge-torch. Focused on delivering on-device text generation improvements and maintainability enhancements to boost edge performance and developer productivity. No major bugs fixed this month.
Monthly summary for 2024-11: In google-ai-edge/ai-edge-torch, completed targeted improvements and cleanup across development and CI/CD. Delivered a KV cache-aware optimization for the text generation example to align decode steps with KV max size, boosting efficiency within memory constraints. Hardened SentencePiece tokenization by ensuring token ID consistency and robust type handling, improving accuracy. Performed internal model configuration cleanup to refactor dataclass usage and update docstrings, reducing technical debt without user-facing changes. Adjusted CI/CD by removing a code formatting workflow and related script, simplifying pipelines. These changes collectively improve runtime efficiency, tokenization reliability, code maintainability, and CI/CD simplicity, enabling faster iteration and lower risk in production.
Monthly summary for 2024-11: In google-ai-edge/ai-edge-torch, completed targeted improvements and cleanup across development and CI/CD. Delivered a KV cache-aware optimization for the text generation example to align decode steps with KV max size, boosting efficiency within memory constraints. Hardened SentencePiece tokenization by ensuring token ID consistency and robust type handling, improving accuracy. Performed internal model configuration cleanup to refactor dataclass usage and update docstrings, reducing technical debt without user-facing changes. Adjusted CI/CD by removing a code formatting workflow and related script, simplifying pipelines. These changes collectively improve runtime efficiency, tokenization reliability, code maintainability, and CI/CD simplicity, enabling faster iteration and lower risk in production.
October 2024 performance-focused month focused on stability and correctness in the TFLite text generation path of the ai-edge-torch project. Delivered a targeted memory-alignment fix that strengthens robustness and cross-platform compatibility for the external KV cache buffers used by the TFLite text generation example.
October 2024 performance-focused month focused on stability and correctness in the TFLite text generation path of the ai-edge-torch project. Delivered a targeted memory-alignment fix that strengthens robustness and cross-platform compatibility for the external KV cache buffers used by the TFLite text generation example.
Overview of all repositories you've contributed to across your timeline