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by Ryan Lindsey · 2026-06-24

Migrating from Anthropic Claude to ZCX can be a seamless process, especially if your team is looking for cost savings and a more flexible infrastructure. This guide will walk you through the process of setting up a route-through adapter, conducting a regression test, and executing a cutover plan to ZCX. By the end of this guide, your team will be able to leverage ZCX's cost-effective and high-performance Qwen 2.5 models, with pricing undercutting Anthropic by 60-80% per 1M tokens. ZCX offers three tiers: Starter ($99/mo for 1.5M tokens), Pro ($499/mo for 12.0M tokens), and Business ($1999/mo for 60.0M tokens), all with access to Qwen 2.5 models on dedicated NVIDIA GB10 silicon.

Setting Up the Route-Through Adapter

To begin, you'll need to set up a route-through adapter that allows your current applications to communicate with ZCX's OpenAI-compatible API. This adapter will serve as a bridge between your existing Claude setup and ZCX, ensuring a smooth transition. Below is an example of how you might configure this adapter using Python:

import requests

# Replace with your ZCX API key
api_key = 'your_zcx_api_key'

# ZCX API endpoint
zcx_api_url = 'https://zcx.zctechnologies.org/v1/chat'

# Function to send a request to ZCX
# This function mirrors the Anthropic Claude API call structure
# Adjust as necessary to match your current system's API call structure

def send_to_zcx(prompt):
    headers = {'Authorization': f'Bearer {api_key}'}
    data = {'model': 'qwen2.5:32b', 'messages': [{'role': 'user', 'content': prompt}]}
    response = requests.post(zcx_api_url, headers=headers, json=data)
    return response.json()

# Example usage
response = send_to_zcx('What is the capital of France?')
print(response)

Regression Test Strategy

Before fully committing to ZCX, it's important to perform a regression test to ensure that the output from ZCX matches your expectations and the output from Anthropic Claude. This can be done by comparing the responses from both systems for a set of representative prompts. The goal is to identify any discrepancies in the output that could affect your applications.

Cutover Plan

Once your regression tests are complete and you are satisfied with the performance of ZCX, you can proceed with the cutover plan. This involves redirecting your traffic from Anthropic Claude to ZCX. Ensure that your route-through adapter is configured correctly and that it can handle the expected load. Additionally, monitor the system for any issues that may arise during the transition.

Conclusion

Migrating from Anthropic Claude to ZCX can be a straightforward process with the right preparation. By following this guide, you can ensure a smooth transition and start benefiting from ZCX's cost-effective and high-performance models. To get started, sign up for a prepaid LLM credit line at https://zcx.zctechnologies.org#plans.