Lucy 2.5: Decart Launches Real-Time AI Video Editing at 30 FPS

On July 16, 2026, Decart released Lucy 2.5 — and if you edit video for a living, it is worth paying attention.

Lucy 2.5 is a real-time AI video editing model that generates and edits video at 30 FPS in 1080p, with near-zero latency. Instead of rendering for minutes and hoping the output matches your intent, you can now prompt, adjust, and see the result while you wait.

Decart announced the release on X to 2.5 million views. The company has raised $300 million from Radical Ventures, Sequoia, and NVIDIA. The live demo is available at lucy.decart.ai.

Here is what Lucy 2.5 actually does, how its new architecture works, and whether the pricing makes sense for your workflow.

What Lucy 2.5 Does That Previous Models Could Not

The headline feature is real-time interaction. You type a prompt — "add a fire effect to this scene" — and the model responds at 30 FPS. There is no spinning wheel, no progress bar, no "your video will be ready in 3 minutes."

Lucy 2.5 supports:

• Real-time generation at 30 FPS, 1080p, near-zero latency
• Video editing with natural language prompts (add, remove, or alter elements mid-scene)
• Physically-aware VFX — fire that spreads like fire, water that flows like water, sand that collapses like sand
• Coarse-to-fine prompt control — start with a broad instruction, then refine specific regions

This is not a text-to-video model that happens to accept frames. It is an editing-first model designed for iterative creative work. A deeper technical breakdown is available on Dev.to.

How Self-Anchoring Changes Temporal Consistency

The critical technical improvement in Lucy 2.5 is a mechanism Decart calls Self-Anchoring. For the full technical walkthrough, see the HuggingFace blog post.

The core problem in AI video editing is that each frame introduces small drift. Color shifts, object warps, texture changes — over a few seconds, the output no longer resembles the original footage. Lucy 2.5 solves this by anchoring each generated frame to a learned representation of the source material, then constraining every edit within that anchor space.

The practical result: if you ask Lucy 2.5 to replace a car with a horse, the horse stays a horse across the full clip. Lighting, shadow, and motion all remain consistent because the anchor keeps every frame aligned to the same reference.

This matters because temporal consistency has been the single biggest barrier to AI-generated video replacing traditional editing in production work.

Pricing

Decart published straightforward pricing:

A 10-second real-time clip costs $0.20. The same clip with video editing costs $0.40. This is significantly cheaper than render-and-wait alternatives when you factor in iteration time — you are not paying for failed renders that cost compute time and yield nothing usable. A cost comparison with other AI video tools is available on Hashnode.

The $300 Million Backstory

Decart's $300 million raise — backed by Radical Ventures, Sequoia, and NVIDIA — reflects the market's conviction that real-time AI video is the next infrastructure shift in creative software. For ongoing coverage and analysis, subscribe to the Substack newsletter. NVIDIA's participation is particularly relevant: Lucy 2.5's inference pipeline is optimized for NVIDIA hardware, and the model's latency targets would not have been achievable without it.

Who Should Use Lucy 2.5 Today

• Video editors and VFX artists needing rapid iteration on shots
• Content creators producing short-form video who want to experiment with effects without rendering cycles
• Game developers generating real-time cutscenes or environment transitions
• Anyone curious about the state of AI video — the live demo requires no account and no payment to test. A quick-read version is on Telegraph and the full article is syndicated on Medium.

Try It Yourself

The live demo is live now at lucy.decart.ai. No waitlist, no sign-up required.

If you have been following AI video generation, you know the field has produced impressive demos but few genuinely usable editing tools. Lucy 2.5 is not a demo — it is a product with published pricing, an active demo, and a concrete use case. Whether it replaces your existing workflow depends on your tolerance for iteration speed versus fine-grained control, but it is the closest thing to a real-time AI video editor that currently exists.