Modern C++20 AI SDK (GPT-4o, Claude 3.5, tool-calling)
Published:Jun 29, 2025 12:52
•1 min read
•Hacker News
Analysis
This Hacker News post introduces a new C++20 AI SDK designed to provide a more user-friendly experience for interacting with LLMs like GPT-4o and Claude 3.5. The SDK aims to offer similar ease of use to JavaScript and Python AI SDKs, addressing the lack of such tools in the C++ ecosystem. Key features include unified API calls, streaming, multi-turn chat, error handling, and tool calling. The post highlights the challenges of implementing tool calling in C++ due to the absence of robust reflection capabilities. The author is seeking feedback on the clunkiness of the tool calling implementation.
Key Takeaways
- •A new C++20 AI SDK is available, offering unified API calls to OpenAI (GPT-4o) and Anthropic (Claude 3.5).
- •The SDK includes features like streaming, multi-turn chat, error handling, and tool calling.
- •The implementation faces challenges due to the lack of reflection in C++.
- •The author is seeking feedback on the tool calling implementation.
Reference
“The author is seeking feedback on the clunkiness of the tool calling implementation, specifically mentioning the challenges of mapping plain functions to JSON schemas without the benefit of reflection.”