R1 0528 (free)

OpenRouter's R1 0528 AI model offers developers a powerful tool with a massive context window of 163,840 tokens and advanced reasoning capabilities. With the ability to handle text input, function calling, and more, this model is ideal for tasks requiring in-depth understanding and analysis. Best of all, it's free to use with pricing based on usage, making it a cost-effective solution for a wide range of projects.