Unit 11 · Ship AI systems you can operate

Add images, audio, and model thinking

You declare images, files, audio, and other media in the program contract. Provider support determines which media and thinking controls are available.

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Worked example

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// Realtime audio over WebSocket — build with -DAXLLM_ENABLE_REALTIME=ON
axllm::OpenAIResponsesClient client(axllm::object({{"model", "gpt-realtime-2"}, {"api_key", std::getenv("OPENAI_APIKEY")}}));
axllm::Value request = axllm::object({{"model", "gpt-realtime-2"}, {"chat_prompt", axllm::array({axllm::object({{"role", "user"}, {"content", "Say hello."}})})}, {"audio", axllm::object({{"output", axllm::object({{"voice", "alloy"}})}})}});
axllm::Value result = client.realtime_chat(request, nullptr);  // one merged turn: transcript + base64 PCM audio
// Realtime models also route transparently through chat(); chat() accepts input_audio parts; transcribe()/speak() do batch STT/TTS.

Run itIn your own project

cmake_minimum_required(VERSION 3.20)
project(ax_quick_start LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)

include(FetchContent)
FetchContent_Declare(axllm GIT_REPOSITORY https://github.com/ax-llm/ax GIT_TAG main SOURCE_SUBDIR packages/cpp)
FetchContent_MakeAvailable(axllm)

add_executable(quick_start quick_start.cpp)
target_link_libraries(quick_start PRIVATE axllm::axllm)

#include <axllm/axllm.hpp>
#include <cstdlib>
#include <iostream>

int main() {
  auto llm = axllm::ai("openai", axllm::object({{"apiKey", std::getenv("OPENAI_API_KEY")}}));
  auto classify = axllm::ax("review:string -> sentiment:class \"positive, negative, neutral\"");
  auto result = classify.forward(*llm, axllm::object({
    {"review", "Useful and boring in the best way."}
  }));

  auto sentiment = axllm::Core::get(result, "sentiment");
  std::cout << "sentiment: " << std::get<std::string>(sentiment.data) << "\n";
}

Set OPENAI_APIKEY in your environment before running provider-backed code.

In the ax repo

From a clone of the ax repo:

npm run example -- cpp src/examples/cpp/long-agents/smart_defaults_agent.cpp

Active practice

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Answer 2 in a row to learn this · attempt 1

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