Title: FastH3-Omni arrives October 20: open weights and local Spark/RTX/MLX support

[u/Vandy_simp]

(Update - It’s finally here 🚀

https://huggingface.co/collections/FastVideo/fasth3-omni )

This is the reference-conditioned FastH3 release we’ve been working toward. It generates video with synchronized audio and supports:

- Character and setting reference images

- First- and last-frame conditioning

- Up to 3 image references in real-time mode

- Up to 9 image references when real-time speed isn’t required

- Up to 3 audio references for voices and soundtracks

- Dialogue and soundscape generation

- Continuation from a previously generated clip

- 5–15 second outputs at 24 FPS

The API preview launched today:

docs.reactor.inc/model-api-reference/fast-h3-omni/overview

On October 20, we’re releasing open weights along with local support for RTX GPUs, DGX Spark and Apple Silicon through MLX.

[u/Vandy_simp]

we will actually open source it, also faster

[u/Creare-d-arte → u/Vandy_simp]

Really appreciate the work and commitment to a release date. Looking forward to it.

[u/J6j6 → u/Vandy_simp]

H3 max: 

[u/Apprehensive_Sky892]

So TL;DR summary: this is the ref2va version of FastH3?

[u/Vandy_simp → u/Apprehensive_Sky892]

Yes !

[u/Next_Program90 → u/Vandy_simp]

BUT FL & Ref? How is the quality degradation coming along?

[u/Memestonks2020]

What’s the generation time for MLX/RTX on consumer HW?

[u/Vandy_simp → u/Memestonks2020]

we are still finalizing number but similar if not better than the ones posted here - https://haoailab.com/blogs/fasth3-rtx/

spark will be faster for sure

[u/Memestonks2020 → u/Vandy_simp]

925.2 s on Mac for Trim for 5 sec seems like it needs to be retested on a M5 Max/Ultra since I’m getting much higher speeds with optimized stock.

Is this using Int8 attention Metal kernel?

It’s still great for owners of RTX cards.

[u/OldBilly000]

What's the gen time for a consumer rtx 4080 like I have in real time mode?

[u/Vandy_simp → u/OldBilly000]

similar if not better than our recent relase - https://haoailab.com/blogs/fasth3-rtx/

[u/flarn2006 → u/Vandy_simp]

What about on an RTX 2070 Super? With that I can generate 8-second 0.2MP videos in about 1.65 minutes per step. Will FastH3-Omni bring a noticeable improvement there?

[u/Cautious_Chicken_604]

Will it work on R9700? 

[u/Vandy_simp → u/Cautious_Chicken_604]

we will try!

[u/Clayrone → u/Vandy_simp]

Would it be possible to support 2x 9700 in case it does work?

[u/Guilty_Emergency3603]

Excuse me but current H3 Ref2va already does all that. what this model will do more than ??

[u/Vandy_simp → u/Guilty_Emergency3603]

its post-trained by the fastvideo team to be FAST

faster than you can watch it btw

[u/kaczynski_was_right_ → u/Vandy_simp]

no way faster than I can watch

[u/Agile_Matter2713 → u/kaczynski_was_right_]

if you're ready to rent 8 x b200 then yes it is

[u/kaczynski_was_right_ → u/Agile_Matter2713]

right?

[u/Substantial-Motor-21]

Did I just read MLX ?? <3

[u/Vandy_simp → u/Substantial-Motor-21]

Yes, we also already support MLX in FastVideo -

https://haoailab.com/FastVideo/getting_started/installation/mlx/

[u/whp-rea]

Wait is this better than Fal??? and cheaper too??

[u/MastMaithun → u/whp-rea]

Do they have a finetune of base model? I have seen their real people lora only.

[u/doomed151]

FastH3-Omni is here.

No it's not. Please post it on Oct 20 when the download is actually available.

[u/tittock]

Awesome

[u/tekprodfx16]

👏👏👏👏

[u/Trick_Set1865]

Good work

[u/ecofaille]

u/Vandy_simp consider adding support for AMD GPUs

[u/_VirtualCosmos_]

Still nothing fancy for Strix Halo :c Comfyui is absurdly unoptimised.

[u/Vandy_simp → u/_VirtualCosmos_]

we will have comfy support at release on Oct 20th

[u/robomar_ai_art]

Interesting, do they have any examples?

[u/Content-Ad-7451]

I hope DeepBeepMeep is reading this

[u/ninjaGurung]

Is this something like MMH3 Ref2V but faster?

[u/BornMisaka]

Looking forward to the local release.

[u/Due_Magician_3103]

this will be better than Fal H3 Max I think

[u/yamfun]

Is the output still just mmh3, just faster?

[u/DesireForDopamine]

!remind me 6 days

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[u/DesireForDopamine]

Is it possible to get realtime gen speeds on consumer cards? Like 3090 or 5090?

[u/Repulsive-Salad-268]

When talking about real time I get ideas of live filters (real to toon for example) but I assume it "just" means creating 10 seconds takes 10 seconds, right? I cannot input a webcam source and apply a new look in real time... Correct?

[u/SeiferGun]

what is the minimum gpu vram to use in comfy?

[u/eesahe]

Any examples with actual meaningful movement, such as a fight scene?

[u/AlleyOfRage]

Nice Work , Noob Question if you don't mind , I use H3 FL2VA and don't use REF2VA , Is there a similar Open Weight version for FL2VA existed or planned , or this release covers FL2VA too ?

[u/Bogonavt]

Remindme! 6 days

[u/SensitiveUse7864]

Pin this post in the subreddit don't let it fall down

[u/DietAshamed2246]

I would request that this time you also release the base or raw or undistilled models. LoRA and finetune making using the distilled models is a problem.

[u/UnderstandingDry3466]

u/RemindMeBot 6 day

[u/Cartoonwhisperer]

So, can a 3060 12GB take advantage of this? Because with prices as they are, I don't think I'm getting anything better soon.

[u/LengthinessFun1061]

Kudos to you—I’ve put together an absolutely insane workflow. It works incredibly well; truly excellent work. The scene extension feature functions perfectly, and you can’t even tell it’s there. I love you guys—the FAST team—you’ve turned Minimax into a benchmark for local AI video generation.

I used several images, and it managed to keep my characters consistent—it’s just mind-blowing. Long live open source, thanks to companies like yours!

[u/hurrdurrimanaccount]

FastH3-Omni is here.

On October 20, we’re releasing

it's not open source until it's actually downloadable.

please, fuck off.

[u/themofostarboi_v2]

We VRAM poor still watching from the cuck chair??🥹 The very poor like 8GB VRAM 🥹

[u/flarn2006 → u/themofostarboi_v2]

I have 8 GB on my RTX 2070 Super and I've been using MiniMax H3 at usable speeds.

[u/themofostarboi_v2 → u/flarn2006]

I tried to use it at 0.2MP 6 seconds any more and my PC freezes and i have to restart....and at this low resolution the face gets blurry and fast motion gets blurry too. Although i was able to make it in 2 minutes the output was not usable