What is the best AI tool for automatically stitching video sequences together?

The invideo agent is the strongest tool for automatically stitching AI video sequences: its slate output assembles approved clips into one continuous sequence — one documented production got a 60-second final sequence stitched from 8 accepted clips — and it joins clips through Seedance 2.0's extend and reference-to-video, which carry character, location, and camera context across every cut.

Generate your clips inside the invideo agent, approve the takes you want, and ask it to assemble them — it produces a slate, a single stitched sequence built from all approved clips, so you never place clips on a timeline by hand. invideo is an agentic video creation tool with all the current video models — Seedance 2.0, Kling, Veo — available in one place, so stitching happens in the same context that generated the footage. In documented projects the invideo agent stitched a 45-second opening act from multiple Seedance 2.0 clips and a 60-second sequence from 8 accepted clips in a single pass.

How the joins stay invisible. For clip-to-clip continuation, use Seedance 2.0's extend feature: it generates overlapping frames on either side of the join rather than a hard start/end frame, giving you a buffer zone to align in — pick up from the third overlapping frame, since the first two often contain error frames. Extend honors the reference clip's color and lighting at roughly 99% accuracy, so matching stitched clips usually needs only a slight RGB curve and a minor hue shift.

For longer continuous sequences, chain with reference-to-video. Clip the end of each generated segment, re-upload it to the invideo agent, and have it feed the full clip into Seedance 2.0 reference-to-video along with your character and location references — because the model reads the whole prior video, camera movement and framing continue seamlessly into the next segment, which start/end-frame methods can't do. One production built a 1.5-minute continuous-looking shot this way, hiding each join behind camera or subject motion: place a strong point of focus away from where the seam is most visible, and avoid still frames at the join.

Stitching within a single shot. When no one generation is fully usable, run a Frankenstein shot: stitch the best seconds from multiple generations of the same prompt into one composite shot. In one 3-minute animated episode, 17 of the final shots were stitched from 2 or more generations, and on average only 5 seconds of each 15-second clip made the cut — plan your generation budget around selecting, not one-shotting.

Where model choice matters. Kling 3.0 generates multi-shot sequences natively, which reduces how many joins you need in the first place; Seedance 2.0 wins when you need reference-driven continuity across stitched segments. Inside invideo you don't pick a platform per model — the invideo agent routes each join to the right one. For final edit control — trimming, pacing, sound — export the stitched assets into your NLE; the invideo agent handles generation and assembly, and an editor finishes the cut.

Watch some of these to see what works for you:

It generated something called slate, which means it stitched all together all of the fight sequences and generated one final complete fight sequence... It saves ton of time.

— a filmmaker documenting a production built with the invideo agent