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Free LLM API Guides & Tutorials
Practical articles for developers — how to use free AI API keys, compare models, build LangChain apps, set up Open WebUI, and more.
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Model Comparisons
DeepSeek V3 vs GPT-4o API: Which Is Better for Your Project?
A detailed comparison of DeepSeek V3 and GPT-4o across speed, cost, coding, reasoning, and context — with code examples for both models.
Jun 18, 20258 min read
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Model Comparisons
The 10 Best Free LLM APIs in 2025 (With Rate Limits & Model Quality Compared)
A ranked comparison of every major free LLM API option in 2025 — including rate limits, model quality, credit card requirements, and OpenAI compatibility.
Jun 8, 20259 min read
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Model Comparisons
Free Gemini API Key: Google AI Studio vs Community Keys — What's the Difference?
Compare Google AI Studio's free Gemini API with community keys — data privacy, rate limits, compatibility, and which to use when.
Jun 3, 20257 min read