Official-source specification comparison · no winner declared
MiniMax H3 vs FLUX 3
H3 has the clearer documented resolution position: up to 15 seconds at 2K with native stereo sound. FLUX 3 documents a longer 20-second ceiling, native audio on every video, and a wider named set of video workflows during Early Access. Specifications alone cannot identify the better-looking model.
Evidence boundary: DualView has not yet run the controlled benchmark described below. Specifications come from official pages. Vendor samples are not matched for prompt, input, settings, selection, or post-processing.
Official showcase material
These are real videos published by the model providers. Watch them as examples of each vendor's presentation, not as evidence that one model beats the other.
MiniMax H3 official showcase
MiniMax-published H3 output preserved without re-encoding.
Open the official sourceFLUX 3 official showcase
Official BFL launch-page media streamed from the vendor CDN with preloading disabled.
Open the official sourceWhat the official documentation actually supports
This comparison is closest when both models receive the same text prompt, starting image, or source video and are asked to produce the same duration and delivery resolution. H3's launch emphasizes 2K output, precise multimodal instruction following, brand rendering, and V2V motion transfer. FLUX 3's announcement emphasizes a unified image-video-audio foundation and a broad production surface.
The duration headline needs context. H3's documented maximum is 15 seconds; FLUX 3 says up to 20 seconds in one generation and describes agentic chaining for longer sequences. A duration advantage does not prove better temporal stability. That requires inspecting matched outputs for identity drift, motion continuity, cuts, audio timing, and end-of-shot degradation.
Availability also affects the decision. FLUX 3 is explicitly presented as Early Access, with its launch page saying evaluations are preliminary. MiniMax says H3 is launching as a general-purpose model and plans open weights, subject to applicable rules. Teams should verify the access route, terms, queue behavior, and current pricing before committing a production pipeline.
| Question | MiniMax H3 | FLUX 3 |
|---|---|---|
| Single generation | Up to 15 seconds | Up to 20 seconds |
| Resolution stated on launch page | Up to 2K; 2K described as default | Early evaluation clips described as 720p; no maximum delivery resolution stated |
| Audio | Native stereo sound | Native audio on all documented video outputs |
| Input/control surface | Text, image, video, and audio context; V2V motion transfer | Text-to-video, image-to-video, V2V, video-audio continuation, and keyframe-to-video |
| Launch status | Launched July 31, 2026; open weights planned | Early Access announced July 23, 2026 |
| Independent quality result | Not measured by DualView | Not measured by DualView |
Model profiles in one paragraph
MiniMax H3
MiniMax documents up to 15 seconds at 2K, native stereo sound, unified text-image-video-audio context, V2V motion transfer, and multimodal generation and editing.
FLUX 3
Black Forest Labs documents Early Access video with native audio up to 20 seconds, text-to-video, image-to-video, video-to-video, video-audio continuation, keyframe transitions, multilingual dialogue, and clip chaining.
A fair comparison protocol
The protocol below isolates shared capabilities before exploring model-specific advantages. Save original files and settings so another reviewer can reproduce the result.
Run three matched lanes: text-only, one shared starting frame, and one shared motion-reference clip.
Render a common 10-second target first; then test each model's maximum duration separately.
Score faces, typography, camera compliance, physical motion, stereo placement, and event-to-sound timing.
Record access tier, retries, queue time, generation time, delivered codec, resolution, and total cost.
Which one belongs on the shortlist?
Choose a test centered on H3 when 2K delivery, stereo sound, multimodal context, or brand/text rendering is central. Put FLUX 3 first when the job needs its documented mix of T2V, I2V, V2V, continuation, keyframes, or longer single clips. Run both when visual quality is the deciding factor.
What this page does not claim
This MiniMax H3 and FLUX 3 review does not declare an overall quality winner or turn provider preference figures into independent evidence. It leaves undocumented limits blank. Recheck the linked first-party pages because access, aliases, pricing, and output options can change.