Question 1

How do I switch from OpenAI to Anthropic API?

Accepted Answer

Change the base URL from https://api.openai.com/v1 to https://api.anthropic.com/v1, replace the Authorization header with x-api-key, update the model name, and adjust the request format (Anthropic uses 'messages' endpoint with different parameter names). Our generator above creates the exact code you need.

Question 2

Can I use the OpenAI SDK with other providers?

Accepted Answer

Yes. DeepSeek, Together AI, xAI (Grok), and Moonshot (Kimi) all support the OpenAI-compatible API format. Just change the base_url and API key — no other code changes needed. Our migration code generator shows you exactly what to change.

Question 3

What is the easiest AI model to migrate to?

Accepted Answer

Providers using the OpenAI-compatible format are easiest: DeepSeek, Together AI, xAI, and Moonshot require only a URL and key change. Google Gemini and Anthropic Claude require more code changes due to their unique API formats, but the migration is still straightforward with our code templates.

Question 4

How much can I save by switching AI providers?

Accepted Answer

Savings depend on your current provider and usage. Switching from GPT-4o ($2.50/$10 per 1M tokens) to DeepSeek V4 Pro ($0.44/$0.87) saves 82% on input and 91% on output tokens. Even switching from Claude Sonnet 4.6 ($3/$15) to Gemini 2.5 Pro ($1.25/$10) saves 58% on input tokens.

Question 5

What environment variables do I need for AI API providers?

Accepted Answer

Each provider uses a different environment variable for its API key: OpenAI uses OPENAI_API_KEY, Anthropic uses ANTHROPIC_API_KEY, Google uses GOOGLE_API_KEY, DeepSeek uses DEEPSEEK_API_KEY, Mistral uses MISTRAL_API_KEY, and so on. Our migration code generator includes an .env file generator that shows the exact variable name and setup instructions for your target provider.

AI Model Migration Code Generator

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