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?
You could always self host something like lm studio and download some models of interest and adjust to the highest amount of input. Of course you will be limited by the hardware as well as the model. As an example, I don’t think LM Studio imposes a limit, it depends on the model.
My apologies if I misunderstood any of your question.
LM Studio is free