Katechon ArcSide by side
Every Runway entry links to the public page it was read from on 2026-10-17. Prices and features change; check the source before you buy. Katechon Arc facts come from our own pricing and models pages.
| Topic | Runway (as of 2026-10) | Katechon Arc |
|---|---|---|
| What it is | Its own video models (Gen-4.5, Aleph 2.0, Act-Two), a creative app, a developer API, and third-party models. Source: runway.com, as of 2026-10 | A production studio for multi-episode dramas and video ads: script plan, references, storyboards, video, voice and film export in one project. |
| Plans | Free with 125 one-time credits; Standard $15/month or $12/month billed annually (625 credits); Pro $35 or $28 (2,250 credits); Max $95 or $76 (9,500 credits). Source: runway.com/pricing, as of 2026-10 | Starter $12.90/month (1,800 credits), Pro $49.90/month (10,000 credits), Ultra $129.90/month (27,000 credits), Organization $199/month (42,000 credits); annual billing on Starter, Pro, Ultra. No free plan. Pricing. |
| Video models | First-party Gen-4.5, Gen-4 Turbo, Aleph 2.0 and Act-Two, plus Seedance, Kling, Veo 3.1, Wan and others through the API. Source: docs.dev.runwayml.com/guides/pricing, as of 2026-10 | Seedance 2.0, Seedance 2.0 Fast, Seedance 2.0 Mini for video; Seedream 5.0 Lite and Seedream 4.5 for images; ElevenLabs voice. A narrower model list than multi-model platforms. Models. |
| Character consistency | Gen-4 keeps characters consistent from a single reference image. Source: runway.com/research/introducing-runway-gen-4, as of 2026-10 | One reference sheet per character, location, prop and product, attached to every shot it appears in. How it works. |
| Script and storyboard | Runway Agent proposes a concept and story beats, makes multi-shot video with voiceover, dialogue and music, and has a timeline editor. Source: runway.com/news/introducing-runway-agent, as of 2026-10 | The agent plans episodes and a script plan you confirm before scripts are written; each shot gets a storyboard frame or a grid storyboard before video. |
| Series and episodes | A microdrama use-case page describes vertical episodes with a recurring cast, title cards, cold opens and cliffhangers. Source: runway.com/use-cases/microdramas, as of 2026-10 | Projects are organized as episodes that share one cast and set of locations. See films made with Arc. |
| Agents | Runway MCP for ChatGPT, Claude, Cursor and others, using account credits; a Dev MCP for the API. Source: runway.com/mcp, as of 2026-10 | A remote MCP server with 38 tools, authenticated with a personal API key. Developers. |
Choose Runway if
- You want first-party models such as Gen-4.5, Aleph video-to-video editing and Act-Two performance capture.
- You want a free tier and published per-model API prices.
- You edit on a timeline and want plugins for an existing post-production setup.
Choose Katechon Arc if
- You are making a multi-episode drama or a series of ads and need the same cast, locations and products in every shot.
- You want to review an episode plan, scripts and storyboards before you spend credits on video.
- You want one project to hold the whole production, from source text to an exported film or a Jianying draft.
- You want an AI agent of your own to drive production through the Katechon Arc MCP server.
How we compared
We read Runway's own pricing, product and documentation pages and wrote down only what they state, in neutral words. Where a page did not say something, we say we did not find it rather than assume it is missing. Katechon Arc is our product, so weigh this page accordingly, and see the films we made with it on the films page.
Other comparisons: Katechon Arc vs Higgsfield, Katechon Arc vs Topview, Katechon Arc vs Hedra, Katechon Arc vs LTX Studio, Katechon Arc vs Showrunner. For raw model prices per second, see the AI video price index.