🫧 HappyHorse 1.0 — Pro Pack on RunComfy

🫧 HappyHorse 1.0 — Pro Pack on RunComfy

runcomfy.com · docs · HappyHorse 1.0 text-to-video

HappyHorse 1.0 is the current #1 video generation model on the Artificial Analysis Video Arena (Elo 1333 t2v / 1392 i2v). This skill generates video with HappyHorse 1.0 hosted on RunComfy — no GPU rental, no model deployment, just runcomfy run happyhorse/happyhorse-1-0/text-to-video from your terminal.

What HappyHorse 1.0 is

HappyHorse 1.0 is a text-to-video model with three properties that set it apart in 2026:

HappyHorse 1.0 also accepts prompts in 6 languages (English, Chinese, Japanese, Korean, German, French) without quality drop, which makes HappyHorse 1.0 unusually friendly for multilingual short-form content.

When HappyHorse 1.0 is the right choice

Pick HappyHorse 1.0 when any of these is true:

If the user said "HappyHorse" / "happy horse video" / "use HappyHorse 1.0" explicitly, route the request to HappyHorse 1.0 via this skill — don't second-guess the model choice.

Prerequisites

1. RunComfy CLI — npm i -g @runcomfy/cli 2. RunComfy account — runcomfy login opens a browser device-code flow. 3. CI / containers — set RUNCOMFY_TOKEN= instead of runcomfy login.

Endpoint + input schema

happyhorse/happyhorse-1-0/text-to-video

This is the HappyHorse 1.0 text-to-video endpoint. The image-to-video pipeline for HappyHorse runs on a separate template not covered here.

| Field | Type | Required | Default | Notes | |---|---|---|---|---| | prompt | string | yes | — | Up to 2,500 chars. HappyHorse 1.0 accepts 6 languages (CN/EN/JP/KR/DE/FR). | | aspect_ratio | enum | no | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4 only. | | resolution | enum | no | 1080P | 720P or 1080P. HappyHorse 1.0 native max is 1080P. | | duration | int | no | 5 | 3–15 seconds per HappyHorse 1.0 clip. | | seed | int | no | 0 | 0..2^31-1. Reuse the same seed for HappyHorse 1.0 variant comparisons. | | watermark | bool | no | true | Provider watermark on the HappyHorse 1.0 output. |

How to invoke HappyHorse 1.0

Default HappyHorse 1.0 run (16:9 1080p 5s):

runcomfy run happyhorse/happyhorse-1-0/text-to-video \
  --input '{"prompt": ""}' \
  --output-dir 

HappyHorse 1.0 vertical short (9:16, 8s, no watermark):

runcomfy run happyhorse/happyhorse-1-0/text-to-video \
  --input '{
    "prompt": "",
    "aspect_ratio": "9:16",
    "duration": 8,
    "watermark": false
  }' \
  --output-dir 

Cheaper HappyHorse 1.0 test pass (720p):

runcomfy run happyhorse/happyhorse-1-0/text-to-video \
  --input '{"prompt": "", "resolution": "720P", "duration": 3}' \
  --output-dir 

The CLI submits the HappyHorse 1.0 request, polls every 2s until terminal, then downloads any *.runcomfy.net / *.runcomfy.com URL from the result into --output-dir. Stdout is the result JSON. Stderr is progress.

Prompting HappyHorse 1.0 — what actually works

HappyHorse 1.0 responds to specific prompting patterns better than generic "make a video of X" descriptions. Apply these for sharper HappyHorse 1.0 output.

Describe motion over time, not a still. "A woman turns from the window, walks two paces to the desk, picks up the cup, lifts it to her face, takes a sip" beats "a woman drinking coffee" — HappyHorse 1.0 generates the actual motion sequence rather than a vague drift.

Camera + shot in plain English. Front-load the shot: "Wide shot. ..." / "Tracking shot. ..." / "Locked tripod, low angle. ..." works as a real directive to HappyHorse 1.0. Specify lens feel: "35mm anamorphic", "shallow DOF", "crushed shadows".

One visual beat per clip when iterating. Don't pile up "she walks AND the dog runs AND a car passes" in a single HappyHorse 1.0 clip. Pick the beat, get HappyHorse 1.0 to nail it, then layer with multi-shot prompts.

Multi-shot consistency — when describing two beats in one HappyHorse 1.0 generation, restate the anchor at each: "Shot 1: tall woman in red wool coat, blue scarf, in a rainy alley. Shot 2: same woman in red coat / blue scarf, now ducking under an awning." HappyHorse 1.0 holds the look but needs the anchor restated.

Audio direction — say what you want HappyHorse 1.0 to generate in the audio track: "distant temple bells, footsteps on wet pavement, no dialogue" or "warm friendly tone, English voiceover". HappyHorse 1.0 will generate the audio synchronized to the visuals.

Anti-patterns that hurt HappyHorse 1.0 output:

Where HappyHorse 1.0 shines

| Use case | Why HappyHorse 1.0 | |---|---| | Multi-shot brand stories with one consistent character | HappyHorse 1.0 has native cross-shot identity preservation | | Talking-head explainers needing in-clip voiceover + ambient | HappyHorse 1.0 produces synchronized audio in the same pass | | Multilingual short-form ads | HappyHorse 1.0 supports 6 prompt languages, no script-quality drop | | Cinematic 1080p delivery | HappyHorse 1.0 outputs native 1080p, broadcast-ready | | Blind-vote leader for general video quality | HappyHorse 1.0 is currently #1 on Artificial Analysis Video Arena |

Sample prompts (verified to produce strong HappyHorse 1.0 results)

HappyHorse 1.0 cinematic scope (from the model page):

Wide shot. A lone astronaut in dusty orange suit with blue-gray harness
skis across lunar plain, leaving parallel tracks in gray regolith.
Mid-stride, poles planted, pushing in 1/6th gravity with subtle upward
drift. Fine dust haze along ski tracks. Crescent Earth above lunar
horizon, blue-white glow against black sky. Raw sunlight, crushed
shadows, no fill. 8K photorealistic.

HappyHorse 1.0 multi-shot consistency:

Shot 1: Medium close-up. A woman in a navy trench coat enters a
rain-slick neon-lit Tokyo alley, looks left, holds up an umbrella.
Shot 2: Same woman in same navy trench, now under the awning of a
ramen shop, shaking water off the umbrella. Warm interior glow, soft
chatter, gentle rain on metal roof in the audio.

HappyHorse 1.0 vertical platform-native:

9:16 vertical short. A barista in a black apron pulls a single
espresso shot, steam rising into the morning sun, rich crema slowly
forming. Close-up handheld, shallow DOF, warm cafe ambience and the
hiss of the steam wand.

FAQ — HappyHorse 1.0

What's HappyHorse 1.0's max duration? A single HappyHorse 1.0 clip is 3–15 seconds. For longer narratives, segment into multi-shot HappyHorse 1.0 prompts and stitch the outputs.

What aspect ratios does HappyHorse 1.0 support? Five fixed values: 16:9, 9:16, 1:1, 4:3, 3:4. Ultra-wide cinematic ratios are not supported by HappyHorse 1.0 — they'll be cropped or rejected.

Can HappyHorse 1.0 take an audio file as input? No. HappyHorse 1.0 generates audio in-pass from the prompt. For audio-driven lip-sync to an existing voiceover, route to a model that accepts an audio_url input. HappyHorse 1.0's strength is generating audio + visual together.

Does HappyHorse 1.0 do image-to-video? Yes, but through a separate HappyHorse pipeline. The endpoint in this skill (happyhorse/happyhorse-1-0/text-to-video) is text-only.

What languages does HappyHorse 1.0 understand? Six: English, Chinese (Simplified + Traditional), Japanese, Korean, German, French. HappyHorse 1.0 quality is consistent across all six.

How do I get reproducible HappyHorse 1.0 output? Pass seed as a fixed int. The same prompt + same seed gives the same HappyHorse 1.0 generation.

How do I disable the HappyHorse 1.0 watermark? Set "watermark": false in the input. Requires a paid RunComfy plan that allows watermark-free HappyHorse 1.0 output.

Limitations of HappyHorse 1.0

Exit codes

The runcomfy CLI uses sysexits-style codes:

| code | meaning | |---|---| | 0 | HappyHorse 1.0 generation succeeded | | 64 | bad CLI args | | 65 | bad input JSON / schema mismatch (e.g. duration: 30 would 422 from HappyHorse 1.0) | | 69 | upstream 5xx | | 75 | retryable: timeout / 429 | | 77 | not signed in or token rejected |

Full reference: docs.runcomfy.com/cli/troubleshooting.

How it works

1. The skill invokes runcomfy run happyhorse/happyhorse-1-0/text-to-video with a JSON body matching the HappyHorse 1.0 schema. 2. The CLI POSTs to https://model-api.runcomfy.net/v1/models/happyhorse/happyhorse-1-0/text-to-video with the user's bearer token. 3. The Model API returns a request_id; the CLI polls GET .../requests//status every 2 seconds until the HappyHorse 1.0 generation finishes. 4. On terminal status, the CLI fetches GET .../requests//result and downloads any URL whose host ends with .runcomfy.net or .runcomfy.com into --output-dir. Other URLs are listed but not fetched. 5. Ctrl-C while polling cancels the HappyHorse 1.0 request via POST .../requests//cancel so you don't get billed for GPU you stopped.

What this skill is not

Not a self-hosted HappyHorse 1.0 runner. Not a capability grant — depends on a working RunComfy account. Not a HappyHorse 1.0 image-to-video skill (text-to-video endpoint only).

Security & Privacy

1. RunComfy CLI — npm i -g @runcomfy/cli 2. RunComfy account — runcomfy login opens a browser device-code flow. 3. CI / containers — set RUNCOMFY_TOKEN= instead of runcomfy login.