About ByteAsk
ByteAsk is an AI coding agent built specifically for C and C++. It edits code and then verifies changes with the project's real compilers, sanitizers, debuggers, and test suites before presenting a diff. It targets engineers working on trading systems, automotive, chips, and operating systems.
What is ByteAsk?
What is ByteAsk?
ByteAsk is a coding agent focused on C and C++, the languages behind trading systems, cars, chips, and operating systems. Its core idea is verification: rather than stopping at a diff that looks right, ByteAsk builds, debugs, and tests each change with the real toolchain until the change holds.
The agent runs from the terminal and inside VS Code, Neovim, and Emacs. According to its website, it uses the project's own flags and build system, runs compilers such as GCC and Clang, sanitizers including ASan, UBSan, and TSan, and tools like Valgrind, perf, CMake, vcpkg, and Conan. It can join an existing gdb session through a bridge the developer arms, and it shows raw tool output with frames, files, and line numbers intact. ByteAsk also indexes reference material such as Intel intrinsics and standards documents so answers come from lookups rather than recall. The company highlights zero data retention and a fully on-prem option.
ByteAsk is part of Y Combinator's Fall 2026 batch and is based in San Francisco. It was founded in 2026 by Anirudha Kulkarni (CEO) and Pratyush Saini (CTO). In September 2026 it announced a $1 million pre-seed round led by Y Combinator.
Pros
- Specialized for C and C++ rather than general-purpose coding
- Verifies changes with real compilers, sanitizers, debuggers, and tests
- Works in the terminal and in VS Code, Neovim, and Emacs
- Zero data retention and an on-prem option for sensitive codebases
Cons
- Narrow language focus means limited value for teams outside C and C++
- Very early-stage company founded in 2026
- Running full builds and tests for each change can be slower on large projects
How to Use ByteAsk
- 1Install ByteAsk
Run the install script from byteask.ai on Linux or macOS, or use the Windows installer.
- 2Open your project
Start ByteAsk in the terminal or your editor inside an existing C or C++ codebase.
- 3Describe the change
Ask for a fix or feature; ByteAsk edits the code and runs your compilers, sanitizers, and tests.
- 4Review the verified diff
Inspect the diff along with the raw build, test, and debugger output before accepting it.