Minimax

Hailuo H3 is the newest video generation model from MiniMax, the Shanghai AI lab behind the Hailuo video app and the MiniMax text and audio model families. H3 generates native 2K video with synchronized audio in a single pass, at clip lengths up to 15 seconds.

Developed by MiniMax. All credit for the model goes to the MiniMax team. This is a hosted integration, not a weight mirror - H3 is a closed model served through the MiniMax API, and Civitai runs your generations against it so you can work on-site alongside the rest of your library. There are no weights to download here or anywhere else.

Background

MiniMax has shipped video models under the Hailuo name since 2024, moving from the I2V-01 series through Hailuo 02 and Hailuo 2.3. Those earlier models topped out around 1080p with fixed 6 or 10 second clips and no native sound. H3 is the step past that: it raises the ceiling to 2K, opens the clip length to any integer from 4 to 15 seconds, and folds audio generation into the same pass as the picture rather than bolting it on afterward.

Capabilities

• Native 2K output (2560x1440 at 16:9)
• Clips from 4 to 15 seconds, in one second increments
• Synchronized audio generated with the video - dialogue, effects, and ambience timed to what is on screen
• Text-to-video, image-to-video, and first frame plus last frame control
• Omni-reference conditioning: up to 9 reference images, 3 reference video clips, and 3 reference audio clips
• Multi-shot sequences and instruction-based editing

On Civitai

H3 is wired into the video generator across four workflows: Create Video (text only), Image to Video (single first frame), First/Last Frame (both endpoints), and Reference to Video (up to 9 reference images). Resolution is fixed at 2K because that is the only output H3 produces. Aspect ratio is selectable at 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16 for text prompts; when you supply a frame image, H3 adapts the framing to that image instead.

Reference video and reference audio inputs are supported by the model but are not exposed in the Civitai form yet.

Notes

H3 is a new model and MiniMax has not published a full spec sheet or a stable pricing page for it. Behavior and cost may shift as they finish the rollout. Prompt handling follows the usual MiniMax posture - this is a commercially hosted service and content is subject to the provider's policies, so expect refusals on material their API declines.

Links

• MiniMax video generation docs
• Hailuo AI
• MiniMax
• MiniMax Hailuo AI Terms of Service