Motion

⚠️ Name disambiguation (must read) This entry covers motion.so — "Motion by Mosaic", the AI motion design / text-to-video agent from Mosaic AI Labs, Inc. (formerly at usemosaic.ai). It is absolutely not usemotion.com (id=201 in this library) (Nexusbird Inc.'s calendar/task SuperApp) — the two differ completely in legal entity and product surface. In testing, third-party searches for "Motion review / pricing" return results almost entirely drowned by usemotion.com, and even complaints like "unresponsive support, charged after cancellation" belong to the latter — never attribute usemotion's reviews or pricing to this entry.

Positioning The site calls itself "the Frontier Agent for Motion Design" — built by Mosaic (YC W25, $3.8M seed) to take a one-line prompt through research → storyboard → design → animation → voiceover → finished video, producing launch videos / product demos / explainers / logo animations / social ads. GA on 2026-08-30.

Core capabilities

• Five-step agent pipeline: Prompt → Research (reads your site, extracts real colors/fonts) → Plan (scene-by-scene storyboard) → Build (visuals/animation/voiceover/captions) → Edit
• Editable generation: drag elements, change text, or iterate via chat without regenerating the whole piece, avoiding hallucinated flaws
• Brand design system: 21 built-in presets (Apple/Linear/Vercel/Stripe/Figma, etc.), with custom DESIGN.md on Pro/Max
• Multi-format output: 16:9/9:16/1:1/4:5/21:9 aspect ratios, from under 10s to 1-5min, up to 100 URL attachments
• Asset rights auditing: the API returns sources with provider and rights_status labels

Access and integration (the biggest highlight) The MCP Server (https://mcp.motion.so/mcp) is first-tier in completeness industry-wide: OAuth 2.1 + DCR + CIMD + device flow, with autonomous service accounts (agents can attach a card and buy credits themselves); already callable directly in Claude, ChatGPT (including the ChatGPT app), Cursor, and Perplexity. The REST API https://api.motion.so/api/motion renders asynchronously, plus llms.txt and OpenAPI; /studio offers human done-for-you service.

Pricing No free version, no free trial, All purchases are final (no refunds). Flex $5 (200 credits, one-time), Pro $29/month ($23/month billed annually), Max $99/month ($80/month billed annually), Studio/Enterprise custom; first purchase includes 300 bonus credits.

Use cases Startup product launches, growth marketing producing demos/explainers/ads in batch, design and content teams needing brand consistency, and developers wiring video rendering into agent pipelines (Claude/ChatGPT/Cursor). Not for: budget-sensitive individuals wanting a free trial, professional post-production needing frame-level VFX, or teams with hard data-residency constraints or engineering-file deliverables.

Competitor differences Runway/Pika/Luma/Sora output "single-shot raw clips"; Motion outputs assembled, typography/voiceover/caption-complete finished pieces that are editable element by element. Against HeyGen (digital humans) and After Effects (pixel-level control), Motion explicitly does neither. The cost is a higher price — third parties compute about $6.90 per finished minute, with low credit density at the $29 tier.

Caveats ① Disambiguate first — don't pull reviews from usemotion.com; ② no free trial + no refunds makes trial-and-error costly; ③ output resolution/watermark/frame rate are all officially undisclosed; ④ credit accounting is vague (only "200 credits ≈ 1-2 videos", with Motion High about 10x Medium); ⑤ the product is extremely new (GA only about 3 weeks) with zero independent G2/Capterra/YouTube reviews; ⑥ motion.so/terms and /privacy are both 404 — legal terms live at mosaic.so/legal; ⑦ no self-hosting, and assets and prompts go to third parties like Gemini/OpenAI/Anthropic/ElevenLabs/Deepgram/Fal/Replicate.