Seed Audio 1.0 vs H3 Max

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Seed Audio 1.0 compared with H3 Max
Detail	Seed Audio 1.0	H3 Max
What it does	AI audio generator for creating dialogue, music, sound effects, and complete sound scenes from text, image, or audio prompts	AI video generator using MiniMax H3 Max for text-to-video and image-to-video creation
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: 10 free credits (up to ~8 seconds per generation). Pro monthly: $19.99/month (2,500 credits, up to ~33 minutes). Max monthly: $49.99/month (7,500 credits, up to ~100 minutes). Pro yearly: $16.66/month billed annually (30,000 credits/year, up to ~400 minutes). Max yearly: $41.66/month billed an	Free account with initial credits; annual plans from $149/year (Basic: 14,400 credits) to $999/year (Max: 180,000 credits). Generation billed per second: H3 Max at 480P from 10 credits/second, 768P from 16 credits/second, 1080P from 32 credits/second; standard H3 at 480P 10, 768P 12, 2K 26, 4K 32 cr
Key features	Multimodal input: text prompts, image references, and up to 3 audio references Multi-speaker dialogue generation with emotion and accent control Voice cloning from reference audio up to 30 seconds Background music and sound effects generated in one pass Audio generation up to 2 minutes per scene Image-guided voice generation from character appearance and traits Fine timestamp control over dialogue timing API access included with all paid plans Emotion and expressiveness control through natural language prompts	Text-to-video and image-to-video generation 5-15 second video output duration Multiple resolution options up to 4K Optional beginning and ending frames for composition control Synchronized audio generation with video Prompt expansion controls for detail levels Character consistency across multiple shots Multiple aspect ratios including 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 Directed camera movement following descriptions Per-second credit billing with upfront cost display
What makes it different	Complete sound scenes in one pass instead of separate tools for voice, music, and effects Built for production workflows beyond simple narration Coordinated multi-character dialogue without manual alignment and mixing Scene-level audio creation with ambience and music support	Independent operation with transparent credit-based billing and account-owned storage Synchronized native audio generation in the same pass as video Strong prompt adherence and fast iteration with H3 Max model Failed renders automatically refunded in full credits Supports both English and Chinese prompts
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	32 −1 (down) since last check	22 +1 (up) since last check
Trust Flow (Majestic)	21	14
Citation Flow (Majestic)	33	28
Referring domains (Majestic)	145	70

5 details filled in for both companies.

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