koyal.ai (YC F25)

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koyal.ai (YC F25)

koyal.ai (YC F25)

@KoyalAI

Agentic AI Filmmaking Platform by researchers from @mit, @meta and @carnegiemellon Turn your script & audio into films without a camera Backed by @ycombinator

Katılım Nisan 2025
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koyal.ai (YC F25)
koyal.ai (YC F25)@KoyalAI·
The most advanced benchmark and sandbox for AI image and video. Now available at FilmArena.ai
Mehul Agarwal@meh_agarwal

Today we're launching FilmArena [dot] ai. Biggest release we've ever shipped. The problem: a new SOTA AI image & video model drops every week. @OpenAI shipped GPT Image 2 literally yesterday. 1000 endpoints, no honest answer to "which one is best right now?" Arena AI and Artificial Analysis cracked LLM benchmarking. But for creative AI, they're solving the wrong problem. There is no "best image-to-video model." Best at what? World building? Action Sequences? Expressions? Every category has a different winner, and it flips weekly. So we benchmarked 40+ SOTA models with 2M+ votes across 190 countries. By subcategory. Re-ranked every week as new models ship. With thousands of real humans. But that's just half of it. Then there's the SANDBOX. Higgsfield and other aggregators put models in one place. But creators still juggle twelve subscriptions to do one job. FilmArena collapses it into one tab. Every frontier model. One interface. Same price. Call the best, or call 3 at once and compare. The AI film stack has been fragmented since day one. Today it isn't. Go try it free: filmarena [dot] ai Already wild results from this week: 1. @OpenAI GPT Image 2 (released yesterday) dominates image editing, but @GoogleDeepMind Nano Banana 2 still wins animated 2. @PixVerse_ C-1 beats @dreamina_ai Seedance 2 on animated 3. Veo 3.1 Fast outperforms Veo 3.1 on realistic video And a lot more. Go check it out.

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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
We’ve been trained to think that the difference between a good and bad AI video is the list of keywords at the end of a prompt. @meh_agarwal argues that this is fundamentally against human nature and creative intuition. The future of AI video isn't about learning secret codes; it's about agentic workflows. You describe what you want to see, and the AI agent translates that into the technical language the model needs. We are moving past the "Infinite Text Box" phase of AI. The next generation of tools won't have prompting guides, they’ll have creative controls. @KoyalAI
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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
The "Model Wars" are officially here, and every two weeks, a new leader emerges. @meh_agarwal (@KoyalAI) explains why committing to just one foundational model is a mistake for any serious filmmaker. Koyal’s "Film Arena" benchmarks every major model: Sora, Runway, Luma, on specific cinematic tasks. Whether it’s slow-mo, action sequences, or micro-motions, there is no single "best" model, only the best model for that scene. We are moving into a "Model Agnostic" future. Don't limit your creativity to the constraints of one lab when you can use an agent to cherry-pick the best pixels in the world.
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Mehul Agarwal
Mehul Agarwal@meh_agarwal·
Share the craziest stuff you’ve made using FilmArena.ai I’ll send you some @KoyalAI merch
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Dhawal Jain
Dhawal Jain@thatssodhawal·
Last year, I thought to myself, it would be so cool to work with athletes once we launch. Had no idea how to actually make it happen… and tbh I still don’t. Just trust serendipity. - @dan4kmp4 and team are great at filmmaking. Definitely consider them for your next launch video. - special thanks to @KoyalAI x @MultifactorCOM for letting us use their amazing office space :D
Dhawal Jain tweet media
Dhawal Jain@thatssodhawal

Introducing Maverick #1 Max "Pain" Griffin, UFC fighter - started using Mave headset 100 days ago - for stress regulation and performance Brain score: 71 (day 0) -> 83.4 (day 30) Grab your headset: mavehealth.com

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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
When ChatGPT first dropped, the tech world was thrown into a tailspin, and the "experts" were suddenly playing catch-up. @meh_agarwal shares a story of realization: you don’t need a 20-year career to be the authority in the room. If you are studying LLMs and machine learning today, you are the frontier. While the veterans are trying to figure out how to pivot, the students and young founders are already building the future. Don't let age intimidate you when the technology itself is only a few years old. In this race, the person with the most recent knowledge takes the lead. @KoyalAI
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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
The marketing for many AI video companies is filled with "creators are finished" rhetoric, but that’s the fastest way to get ignored by the studios. @meh_agarwal explains why @KoyalAI takes an opinionated stance for Hollywood’s masters. You don't sell to the people who made Star Wars and Titanic by telling them they’re obsolete. You sell to them by understanding where their pain points are and solving them with better digital tools. The future of film isn't about cutting out the human; it's about cutting out the friction. AI should be the assistant that lets the director's vision reach the screen for a fraction of the cost.
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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
The history of cinema is full of "what ifs," like when Eric Stoltz was replaced by Michael J. Fox after a full month of shooting. In the old world, that mistake cost millions of dollars and weeks of lost time. @meh_agarwal (@KoyalAI ) explains how AI removes the "sunk cost" of filmmaking. With one click, you can swap an actor, a set, or a prop without ever having to call a "reshoot." Technology is finally catching up to the speed of creative thought. Don't let a casting mistake or a bad location ruin your production. Just change it.
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Mehul Agarwal
Mehul Agarwal@meh_agarwal·
The best deal in YC tech is @slashyai A distant second are the very generous credits by Lambda Labs And a close third is a free launch video using @KoyalAI
Mehul Agarwal tweet media
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Mehul Agarwal
Mehul Agarwal@meh_agarwal·
Great to present @KoyalAI to a room full of AI filmmakers and companies in SF, many of them I’m lucky to call friends :)
Fil Graniczny@filgran_

Last night was the first-ever @aionthelot pop-up in San Francisco, and it’s safe to say we’ll be back again soon. Eight early-stage AI media startups pitched live to a panel of judges for the chance to present at our main conference in LA.

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Vadoo AI
Vadoo AI@vadooai·
🚨 **HAPPY HORSE vs. SEEDANCE 2.0** 🔥 We just dropped these two AI models side-by-side… and the vibes are WILD. One brings pure chaotic joy. The other? Straight-up hypnotic elegance. Which aesthetic are you reaching for today? 🐎 Happy Horse or 🌿 Seedance 2.0 Reply with your pick + why 👀 (Viral poll in the comments — let’s see who wins)
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JO. Z
JO. Z@jojodecayz·
Side-by-side comparison of Seedance, Happy Horse, Kling, and Grok. As I mentioned: - Seedance is still quite impressive in fictional scenes - Kling is also having a pretty decent win rate. And it is still hard to just describe even a slightly more complicated motion by i2v/t2v, so please do ask if ComfyUI is still necessary. We will still need reference videos and controllability. Big time! If you want to try my comparison workflow cloud.comfy.org/?share=a1e738d…
JO. Z@jojodecayz

Something is coming to ComfyUI tomorrow. Happy Horse is genuinely impressive in terms of realism and physical consistency. But when it comes to imaginative, VFX-heavy, or more fictional content, Seedance still stands out strongly. Worth trying out!

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Mehul Agarwal
Mehul Agarwal@meh_agarwal·
CMU has produced more YC founders than people realize. I'm one of the 200+. But almost none of us know each other. May 13 in SF, we're hosting the first CMU x YC founders mixer to fix that. Carnegie Mellon got typecast as a big tech feeder so loudly that the founder network underneath it never got built. I'll say it: CMU students are the smartest in the world. Yes, more than the usual Bay Area suspects. Thanks @CMUSwartzCenter and @KoyalAI for making it happen. If you're one of the 200, sign up below! 👇
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Gabriel Jarrosson
Gabriel Jarrosson@GJarrosson·
Mehul (@meh_agarwal) shares the hilarious but true reality of being a founder in the current AI wave. While the rest of the world values "experience on your bones," Silicon Valley is looking for fresh, opinionated takes. The "New World" of LLMs and Generative AI doesn't have 10-year veterans because the tech didn't exist a decade ago. This creates a level playing field where a 19-year-old can out-innovate a 50-year-old executive. If you have a strong vision and a contrarian spirit, your age is your greatest asset. Don't let traditional standards keep you from disrupting the stack. @KoyalAI
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Mehul Agarwal
Mehul Agarwal@meh_agarwal·
The most-hyped AI video model of the year just landed on FilmArena [.] ai @AlibabaGroup's Happy Horse 🐎. It dropped anonymously & took #1 on Artificial Analysis & Arena. On FilmArena, the story is more nuanced. And more useful. Realistic Image-to-Video: #4 overall (#3 object handling, #5 multi-character) Animated Image-to-Video: #3 overall (#2 emotions, high-movement, world building, #6 object handling) This is what a model looks like when you stop measuring it with one number. Happy Horse is a genuine standout for animated, expressive, dynamic work. It's more situational on realistic. Quick methodology note: FilmArena uses the same prompt across every model. It's the only fair way to compare. @HappyHorseATH rewards tailored prompts particularly well, so in your own workflow you can push it higher. Try it out now on filmarena.ai/sandbox and @KoyalAI! The competition just got serious 🐎
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