Which is the best model for creating long videos?

Hi! I've been testing the Minimax H3 these past few days, including the latest Turbo Pruned update, but it produces strange videos. They don't match the prompt and aren't consistent. Director mode doesn't work well either (even though I used the option to improve the prompt). The full version, while it works better, still has the problem of extending or lengthening the video. Has anyone been able to create long videos with this model? Or did you use a different LTX or WAN?

Your system (OS / GPU / RAM / VRAM / etc.)
OS: Windows 11 Pro
GPU: Nvidia RTX 3050 6 GB
RAM: 32 GB DDR4
CPU: Ryzen 7 5700G