Castaly: Pick the right AI video model per shot, pay per generation

Hey Product Hunt, I'm Magnus, and I built Castaly. I kept doing the same annoying thing: a shot list had a wide establishing shot, a close-up of a character, and a fast action beat, and each one seemed to want a different video model. So I'd have four tabs open, four pricing pages, and three different billing units (per second, per 1M tokens, per image). Castaly puts all of that on one screen. What it does - Video and image models side by side: Kling 3.0 / 3.0 Turbo / 3.0 Omni / O1 / 2.6, Seedance 2.5 / 2.0, Wan 3.0 / 2.7, MiniMax-H3, HappyHorse, GPT Image 2 / 2.5, Gemini image, Seedream 5.0 Lite. You pick a resolution and duration and see the price before you generate. - Every parameter is exposed (aspect ratio, resolution, duration, references, first/last frame where the model supports it). Every result keeps the model and settings it was made with and lands in your library, so you can tell later which run made the good clip. - A community gallery where the prompt and settings are attached to each piece. Browsing doesn't need an account. Copy a prompt or remix it into your own Studio. How I actually use it - Character continuity: I wrote one character description (short dark bob, scar above the left eyebrow, olive field jacket) and ran it in two scenes on kling-3.0 at 1080p/5s, a night market and a rainy window. Both clips are in the community gallery so you can see how well the face holds. - One-take spectacle shots: three 10-second 1080p "one continuous take" clips on seedance-2.5 (a library whose pages turn into a dragon, a subway car that becomes a waterfall, a car engine that erupts into cherry petals). The full prompts are public. - Cheap drafts first: I block a shot on kling-2.6 at 720p, which is about $0.19 for 5 seconds. Once the framing works, I re-run the final on kling-3.0 1080p (about $0.51 for 5 seconds) or move it to Seedance. About pricing, plainly: Castaly is pay-per-use only. There's no free plan and no free credits. You top up a USD wallet, and each generation is charged from actual usage at the public price on the pricing page. There's no subscription, no minimum, and the balance doesn't expire. That wallet is shared with Modelflare, so if you'd rather script it, the same models are on the Modelflare API (https://modelflare.dev) with the same balance. Where I'd love feedback - What's missing from the comparison view when you choose a model? - Which shot types do you still find hard to match to a model? - Which models should be added next? I'll be in the comments all day. Thanks for taking a look.