Video · Text to video · Image to video
MiniMax H3 Max API
MiniMax H3 Max. fal's post-trained H3 with stronger prompt adherence and aesthetics: text, first/last frame or multimodal references, 480p-1080p, up to 15 seconds; can sync to an audio track.
- Price
- From $0.05 per run from $0.05/s
- Typical time
- ~2 min
- Model id
minimax_h3_max
MiniMax H3 Max runs on one varg API key and one credit balance, the same as every other model here. You pay the provider's price, with no markup.
curl -X POST https://api.varg.ai/v2/tools/video/call \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5
}'MiniMax H3 Max pricing
From $0.05 per run. Prices are in US dollars and are the provider's own, with no markup. MiniMax H3 Max has 3 routes: "model": "minimax_h3_max" picks one automatically, or pass a route key as "model" to pin it. For the exact price of a request, send the same body to POST https://api.varg.ai/v2/estimate.
- fal from $0.05/s
fal:minimax/h3-max/text-to-videoText to video MiniMax H3 Max text-to-video — fal's post-trained H3: 480P/768P native or 1080P refined, 0.92-15 s, six aspect ratios, optional pinned soundtrack.
- Resolution 480P
- $0.05/s
- Resolution 768P
- $0.08/s
- Resolution 1080P
- $0.16/s
- Other
- $0.16/s
- Minimum charge
- $0.05
- Most one request can cost
- $2.40
- Typical time
- ~2 min
- fal from $0.05/s
fal:minimax/h3-max/image-to-videoImage to video MiniMax H3 Max image-to-video — first frame, last frame or both (canvas follows the image), optional pinned soundtrack; 480P-1080P, 0.92-15 s.
- Resolution 480P
- $0.05/s
- Resolution 768P
- $0.08/s
- Resolution 1080P
- $0.16/s
- Other
- $0.16/s
- Minimum charge
- $0.05
- Most one request can cost
- $2.40
- Typical time
- ~2 min
- fal from $0.05/s
fal:minimax/h3-max/reference-to-videoImage to video MiniMax H3 Max reference-to-video — up to 12 image/video/audio references cited in the prompt, optional first/middle/last frames; 480P-1080P, 0.92-15 s.
- Resolution 480P
- $0.05/s
- Resolution 768P
- $0.08/s
- Resolution 1080P
- $0.16/s
- Other
- $0.16/s
- Minimum charge
- $0.05
- Most one request can cost
- $3.28
- Typical time
- ~2 min
MiniMax H3 Max inputs
The JSON body of the request. Media inputs are URLs: upload a local file with POST /v2/files and pass the URL it returns. Full JSON Schema, no key needed: api.varg.ai/v2/tools/video?model=minimax_h3_max
| Field | What it does |
|---|---|
model string required | minimax_h3_max picks a route automatically. To pin one, pass a route key from Pricing above. |
prompt string | — |
files array of { url } | — |
aspect_ratio string | Allowed e.g. 16:9 | 9:16 | 1:1 | 4:3 | 3:4 | 21:9 | auto |
resolution string | Quality tier. Supported by this model: 480p, 720p, 1080p. Unsupported tiers fall back to the nearest available. Allowed 480p | 720p | 1080p | 4k |
audio boolean | Native audio track request. Not supported by this model — ignored if sent. |
duration integer | Length in seconds. Supported by this model's routes: fal: number 0.92-15. A non-numeric value such as "auto" is routed to a route whose schema accepts it; when none does, the request is rejected. Allowed 1–15 |
Provider options
Optional, under provider_options.<provider>. Only the options of the provider that runs the job apply; pin a route to choose it.
provider_options.fal
| Field | What it does |
|---|---|
prompt string | Text prompt for video generation |
reference_audio_urls array of URL strings | — |
reference_image_urls array of URL strings | — |
reference_video_urls array of URL strings | — |
duration number | Video length in seconds. The output can run up to about 0.7 s longer than requested. Use at least 2 s with target_audio_url. Allowed 0.92–15 |
sync_mode boolean | Return the generated video as base64 instead of a CDN URL. |
resolution string | Allowed 480P | 768P | 1080P |
aspect_ratio string | Allowed 21:9 | 16:9 | 4:3 | 1:1 | 3:4 | 9:16 | adaptive |
enable_safety_checker boolean | If set to true, the safety checker will be enabled. |
prompt_expansion_mode string | How much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt. |
middle_image_url string (URL) | — |
middle_frame_time number | Allowed 0–15 |
Call the MiniMax H3 Max API
POST https://api.varg.ai/v2/tools/video/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away.
1. Send the request
curl -X POST https://api.varg.ai/v2/tools/video/call \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5
}'JavaScript
const headers = {
Authorization: `Bearer ${process.env.VARG_API_KEY}`,
'Content-Type': 'application/json',
}
const res = await fetch('https://api.varg.ai/v2/tools/video/call', {
method: 'POST',
headers,
body: JSON.stringify({
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5
}),
})
const job = await res.json() // { id: "job_…", status: "queued" }Python
import os
import requests
headers = {"Authorization": f"Bearer {os.environ['VARG_API_KEY']}"}
job = requests.post(
"https://api.varg.ai/v2/tools/video/call",
headers=headers,
json={
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5
},
).json() # {"id": "job_…", "status": "queued"}2. Get the result
Poll the job until its status is completed, failed or cancelled; MiniMax H3 Max typically takes about 2 min. The result is at output.outputs[0].url.
curl https://api.varg.ai/v2/jobs/$JOB_ID \
-H "Authorization: Bearer $VARG_API_KEY"
# Poll until "status" is completed, failed or cancelled.
# The result is in output.outputs[0].urlJavaScript
let current = job
while (!['completed', 'failed', 'cancelled'].includes(current.status)) {
await new Promise((resolve) => setTimeout(resolve, 3000))
current = await (await fetch(`https://api.varg.ai/v2/jobs/${current.id}`, { headers })).json()
}
console.log(current.output?.outputs?.[0]?.url)Python
import time
while job["status"] not in ("completed", "failed", "cancelled"):
time.sleep(3)
job = requests.get(f"https://api.varg.ai/v2/jobs/{job['id']}", headers=headers).json()
print(job["output"]["outputs"][0]["url"])Or take a webhook instead of polling
Add options.webhook_url and varg POSTs the finished job to it.
{
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5,
"options": {
"webhook_url": "https://your-app.com/varg-webhook"
}
}From Claude, ChatGPT or Cursor (MCP)
The varg MCP server, https://mcp.varg.ai/mcp, runs MiniMax H3 Max with call_tool. Sign in with varg, no API key to paste. How to connect it
{
"tool": "video",
"input": {
"model": "minimax_h3_max",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"aspect_ratio": "16:9",
"duration": 5
},
"wait": true
}MiniMax H3 Max API: questions
- How much does MiniMax H3 Max cost on varg?
- MiniMax H3 Max costs from $0.05 per run on varg (from $0.05/s on the cheapest route). varg charges the provider's price with no markup, from one credit balance. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.
- How do I call the MiniMax H3 Max API?
- Send POST https://api.varg.ai/v2/tools/video/call with the header "Authorization: Bearer $VARG_API_KEY" and a JSON body that includes "model": "minimax_h3_max". The call answers 202 with a job right away. Poll GET https://api.varg.ai/v2/jobs/{id} until "status" is "completed", then read output.outputs[0].url, or pass options.webhook_url to be called back.
- Can I use MiniMax H3 Max from Claude, ChatGPT or Cursor?
- Yes. Add the varg MCP server (https://mcp.varg.ai/mcp) to Claude, ChatGPT, Cursor or any other MCP client and sign in with varg, with no API key to paste. The agent runs MiniMax H3 Max with call_tool, passing tool "video" and "model": "minimax_h3_max".
- How long does a MiniMax H3 Max request take?
- Typically about 2 min on the fastest route, by the catalog's estimate. The API answers at once with a job id, so nothing waits on an open connection while it runs.
For AI agents: this page as Markdown is varg.ai/models/minimax_h3_max.md, and every model is listed in varg.ai/models/llms.txt.