Launching today
Coding harness for C/C++ developers
Debugs more than 40% of Multi SWE Bench C/C++ tasks
24 followers
Debugs more than 40% of Multi SWE Bench C/C++ tasks
24 followers
LLMs solve <10% of real world C++ tasks. ByteAsk is a community effort of 100+ volunteers working to change this. ByteAsk works with the sanitizers, the debugger, and your test suite before you see a diff. Built-in support for LLVM, GCC, gdb, Valgrind, CMake, and more. Used by engineers across Anthropic, Google, Microsoft, Amazon and more.
Hey Product Hunt 👋
I'm an ex Optiver low latency guy working on ByteAsk.
Writing C++ was never really the hard part for me - proving it's correct is. You write a fix, then you're the one who has to remember to rerun it under sanitizers, step through gdb when it segfaults, and rerun the test suite before you trust the diff. That verification loop is manual, repetitive, and easy to skip when you're tired.
So we built ByteAsk, an AI coding agent for C and C++ that verifies its own work. It doesn't just hand you a diff - it drives the sanitizers, the debugger, and your test suite first, so what you see has already been proven to compile, run, and pass.
Why ByteAsk is different:
Works with any model: Opus (anthropic), Gemini, Codex, GLM 5.2 - 15+ models supported.
Bring Your Own API key: Add your own API key, no extra charges.
Zero Data Retention: No code or prompts are logged. Only abuse prevention metrics like token usage are logged.
Install in seconds: pip, uv, or npm - pick whichever fits your setup.
Verifies before it shows you anything: instead of "here's a fix, hope it works," ByteAsk reproduces the bug, drives ThreadSanitizer/ASan/gdb/Valgrind, and confirms the fix actually holds.
Built for the C/C++ toolchain you already use: native support for LLVM, GCC, gdb, Valgrind, and CMake — not a generic wrapper bolted onto a language it doesn't understand well.
Runs from your terminal, in your repo: it edits your actual codebase, not a sandboxed snippet.
We built this because most AI coding tools treat C++ like just another language with slightly different syntax. It isn't - memory safety and concurrency bugs are where the real time goes, and that's exactly the loop we automated.
Try it → byteask.ai
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@anirudhabyteask Foxy chose your launch out of today's batch 🦊 — a C/C++ agent that proves its code compiles, runs and passes (40%+ of Multi-SWE-bench when general models sit under 10%) is a serious wedge. We wanted to give you more than an upvote, so here's a launch video built from your own product — white-label, yours to post anywhere:
Make your own free at https://foxplug.com
C++ as a language gives broader control which makes it easier to shoot yourself in the foot. Memory management, thread safety, performance engineering are some of the fundamental concepts we needed to make sure it works in practice. One of the hardest challenge was to create the code graph over C++ with lots of templates. This requires working over compile time AST which can grow exponentially before making any edits.
Anirudha, so much of what a machine writes for me looks right and then quietly falls apart the moment I run it. Something that catches its own mistakes before I ever see them would earn my trust fast.
You can directly get support from me and community of 100+ volunteers working on this project here: Discord community: https://discord.gg/kENTnW6ubW
This is really cool. I just tried ByteAsk, and I'm genuinely impressed by how frictionless it is. It fits naturally into an existing coding workflow, and it's surprising how well it handles even complex C++ problems. Huge kudos to the team. You guys are onto something. @anirudhabyteask @pratyush1505
Blaze
this sounds really cool!! congrats on the launch Pratyush and Anirudh!
@gagan_aryan thanks! do checkout at
Sources:
All benchmarks: https://x.com/4n1rudh4/status/2069108126524359115
Github: https://github.com/ByteAsk
Documentation: https://byteask.ai/docs/overview
Privacy policy: https://byteask.ai/privacy/
Installation Sources:
PIP: https://pypi.org/project/byteask/
JetBrains: https://plugins.jetbrains.com/plugin/32655-byteask
Cursor: https://open-vsx.org/extension/byteask/byteask-vscode
NVim: https://github.com/ByteAsk/ByteAsk.nvim
Emacs: https://github.com/ByteAsk/byteask-extensions/tree/main/emacs
NPM: https://www.npmjs.com/package/@byteask/cli