Zukko Blog
Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.
What an hour with an agent actually costs
3 min · · цены
An agent resends the whole conversation on every step. Why spend grows non-linearly, and what to do about it.
What an agent harness is, and how it differs from an IDE plugin
3 min · · harness
A model on its own cannot read files or run commands. The harness does that. Here is how it works.
An autonomous agent from scratch: a minimal working example
4 min · · агенты
An agent is not a library, it is a three-step loop. Building a minimal working example on the raw API, no framework required.
Claude or GPT for a tool-using agent — how to choose
4 min · · models
Both lineups have vision, extended thinking and a 1M context window — the real difference is how each API shapes tool calls and what happens when a loop step fails.
OpenAI Agents SDK over our /v1/responses endpoint
4 min · · агенты
The Agents SDK talks to OpenAI by default. Two client settings redirect it through our gateway onto the models in our catalog.
Semantic Kernel: connecting a .NET app to Claude and GPT
5 min · · агенты
SK talks to OpenAI through the official .NET SDK, which honors HttpClient.BaseAddress. Setup, the trailing-slash 404, and double-charged retries.
Microsoft AutoGen: pointing it at your own key instead of OpenAI
5 min · · агенты
AutoGen builds its client on top of openai-python, so base_url and api_key live right in config_list. Setup and the gotchas that show up first.
CrewAI: connecting agents to Claude and GPT with one key
5 min · · агенты
CrewAI defaults to OpenAI through LiteLLM, but the LLM class can point anywhere. Setup, per-agent model choice, and the errors that show up first.