For example, I know that sites like duck.ai let you use LLMs for free, but they limit input to 16,000 characters, so you can’t actually leverage models like Llama 4 Scout, which supposedly has a 10 million token context window. Are there any platforms or tools (preferably without a paywall or input cap) where I could use models with context windows in the millions, as advertised? Or are all the free tools similarly restricted by much smaller limits?
Unfortunately, you’re probably not gonna find one.
The size of the context window is almost the only thing that matter re: cost to run these agents, so you’ll never get a large one for free.