The AI video market looks different from a year ago. OpenAI closed the consumer Sora website and apps on April 26, 2026, and shut the Sora API on September 24, 2026. Google’s newest video model is Gemini Omni Flash, not a “Veo 4.” Kling 4.0 has been announced but isn’t fully released. This guide ranks the generators you can use today. It covers specs, per-second pricing, and working code. Prices were checked on October 4, 2026, and vendors change them often.
Quick Takeaways
- Best overall: Google’s Gemini Omni Flash and Veo 3.1. They give you native audio, conversational editing, and the widest access, from YouTube Shorts to the API.
- Best value and motion: Kling 3.0, with a daily free tier, 15-second clips, and native 4K. Kling 4.0 is due this month.
- Best for editing and control: Runway Gen-4.5 plus Aleph 2.0, which edits footage you already have.
- Best for long clips and cheap volume: Seedance 2.5 and Wan 3.0, both with 30-second generations.
| Model | Best For | Max Clip | Approx. Cost (720p) | Access |
|---|---|---|---|---|
| Gemini Omni Flash 1.1 | All-rounder, conversational edits | 3–10 s | ~$0.10/s | Gemini API, Flow, YouTube |
| Veo 3.1 | Cinematic clips with audio | 8 s | ~$0.10/s (Fast tier) | Gemini API, Vertex AI |
| Kling 3.0 | Action, value, free tier | 15 s | ~$0.084–$0.168/s | Kling app, API |
| Runway Gen-4.5 | Filmmakers, editing | 2–10 s | $0.12/s | Runway app, API |
| Seedance 2.5 | Long, reference-heavy clips | 30 s | ~$0.23/s | Dreamina, API |
| Wan 3.0 | Lowest cost at length | 30 s | ~$0.10/s | Alibaba Model Studio, ComfyUI |
What Changed in AI Video in 2026
Sora Is Gone
Sora 2 launched in September 2025 with a social app attached. The shutdown timeline is now complete. All API calls to Sora video models began returning errors on September 24, 2026, and the five Sora 2 model aliases are retired. If you still have Sora endpoints in production code, remove them and disable retry loops. Migrate to a model in the sections below.
Google Replaced the Veo Name, Not the Capability
Many articles promise “Veo 4.” Google hasn’t shipped it. As of August 30, 2026, Google’s own Veo page still named Veo 3.1 as the current model family. Google announced Gemini Omni at I/O 2026 instead. Omni Flash is a multimodal model that takes text, image, audio, and video and returns video with synchronized audio and conversational post-editing. It replaces Veo inside the Gemini app.
Model-by-Model Breakdown
Google Gemini Omni Flash and Veo 3.1
Gemini Omni Flash 1.1 is the default pick for most creators. It is generally available on the paid Gemini API tier under the model ID gemini-omni-1.1-flash. It outputs 3–10 seconds at 24 FPS, in 360p, 720p, or upscaled 1080p and 4K, in 16:9 or 9:16.
Cost is token-based. Video output is billed at $17.50 per million tokens, and 720p video consumes 5,792 tokens per second, which works out to roughly $0.10 per second. A 10-second 720p clip costs about $1.00.
Access is broad. Omni Flash generation is free inside YouTube Shorts and the YouTube Create app. The Gemini app and Flow need a Google AI Plus, Pro, or Ultra subscription. Every clip carries a SynthID watermark.
Veo 3.1 remains a strong choice for polished 8-second shots. Veo 3 was shut down on the Gemini API on June 30, 2026, so move any older Veo 3 calls to 3.1 or Omni. One 2026 roundup lists Veo 3.1 Lite at $0.05 per second for silent video.
Omni is also the top performer in crowdsourced testing. As of September 2026, blind perceptual rankings placed Gemini Omni Flash, Alibaba’s Wan 3.0, and MiniMax H3 Max in the top positions.
Kling 3.0 (Kling 4.0 Is Next)
Kuaishou’s Kling 3.0 launched on February 5, 2026. It supports clips up to 15 seconds, multi-shot storyboarding, stronger subject consistency, and audio generated with the visuals, with native 4K added later. A faster Kling 3.0 Turbo followed on June 17. It allows up to 6 shots per generation and includes lip-synced audio in five languages.
Pricing is aggressive:
- Free: 66 daily credits, 720p, watermarked. The free tier is non-commercial.
- Standard: $10/month for 660 credits.
- Pro: $37/month for 3,000 credits.
- API: roughly $0.084 to $0.168 per second, depending on mode.
Kling 4.0 is announced, not shipped. The full model launches in October 2026 with no exact date. Only the lighter Kling 4.0 Flash (up to 20 seconds, 720p) is live, and only for Ultra yearly subscribers. The full model promises single-pass clips of up to 30 seconds, up to 15 multimodal references, and 10 keyframes. Build on 3.0 today. Prompts should carry over.
Runway Gen-4.5 and Aleph 2.0
Runway is the most editor-like tool in this group. Gen-4.5 generates 2–10 second clips at 12 credits per second, and the API charges $0.01 per credit, so a five-second clip costs $0.60. Plans run $15 (Standard) and $35 (Pro) monthly, with a $95 Max tier, plus a one-time free grant of 125 credits.
The bigger story is Aleph 2.0. Runway launched it on May 21, 2026 alongside Edit Studio. It edits up to 30 seconds of 1080p video, and you supply an edited frame that defines the change. Use Gen-4.5 to generate and Aleph to fix what’s wrong, such as lighting, props, or weather. That saves regenerating whole clips.
Seedance 2.5
ByteDance’s Seedance 2.5 targets controllable, longer storytelling. It launched July 31, 2026, doubled its predecessor’s clip length, and accepts up to 50 multimodal references including images, video, audio, and 3D clay renders for geometry and camera paths. It is closed source, with API pricing around 23 cents per second at 720p. Choose it when you need reference-driven shots and can pay a premium.
Wan 3.0
Alibaba’s Wan 3.0 competes on price. Published API rates are about $0.05 per second at 480p, $0.10 at 720p, and $0.20 at 1080p, with 30-second generations. ComfyUI supports it natively. Check the license before assuming open weights.
Cost of One 10-Second 720p Clip
| Model | Per Second | 10-Second Clip |
|---|---|---|
| Wan 3.0 | ~$0.10 | ~$1.00 |
| Gemini Omni Flash | ~$0.10 | ~$1.00 |
| Runway Gen-4.5 | $0.12 | $1.20 |
| Kling 3.0 (API) | $0.084–$0.168 | $0.84–$1.68 |
| Seedance 2.5 | ~$0.23 | ~$2.30 |
Real cost runs higher. Expect two to five attempts per usable shot. Budget for iteration, not for a single generation.
Implementation: Call the APIs
Veo 3.1 via the Gemini API (Python)
pip install google-genai
export GEMINI_API_KEY="your-key"
import time
from google import genai
from google.genai import types
client = genai.Client() # reads GEMINI_API_KEY
# Video jobs are asynchronous: you get an operation, then poll it
operation = client.models.generate_videos(
model="veo-3.1-generate-preview", # confirm the current ID in Google's model list
prompt="Slow dolly-in on a ceramic mug of steaming coffee, rainy window, soft morning light, ambient rain audio",
config=types.GenerateVideosConfig(aspect_ratio="16:9"),
)
while not operation.done:
time.sleep(10) # poll every 10 seconds
operation = client.operations.get(operation)
video = operation.response.generated_videos[0]
client.files.download(file=video.video)
video.video.save("coffee.mp4")
For Omni, swap in gemini-omni-1.1-flash and check Google’s current docs for its parameters.
Runway Gen-4.5 (Python)
# pip install runwayml ; export RUNWAYML_API_SECRET="your-key"
from runwayml import RunwayML
client = RunwayML()
task = client.text_to_video.create(
model="gen4.5", # model ID per Runway's catalog; verify in docs
prompt_text="Handheld tracking shot through a neon night market, shallow depth of field",
ratio="1280:720", # 720p, 16:9
duration=5, # 2-10 seconds; 5 s = 60 credits = $0.60
).wait_for_task_output() # blocks until the job finishes
print(task.output[0]) # URL of the rendered clip
Practical Workflows and Real-World Use Cases
A Reusable Video Prompt Template
Structure every prompt in the same order. Models follow explicit camera and audio cues.
[SHOT TYPE + CAMERA MOVE] of [SUBJECT] [ACTION], in [SETTING],
[LIGHTING/TIME OF DAY], [STYLE/LENS], [AUDIO: ambient + dialogue],
[DURATION: seconds]. Avoid: [text overlays, extra limbs, logos].
Scenario 1: Social Ad Variants
Generate six hook variations in Kling 3.0 at 720p. It has the cheapest high-motion output and a free daily tier for drafts. Promote the winner to a paid tier for clean, watermark-free export.
Scenario 2: Short Film Pipeline
Draft shots in Gemini Omni Flash using first- and last-frame control. Upscale the keepers. Fix continuity errors in Runway Aleph 2.0 by editing one frame. Both steps carry the “edit, don’t regenerate” principle that saves credits.
Scenario 3: Enterprise Migration Off Sora
Abstract your video calls behind one interface. Route to Omni for short clips, Seedance or Wan for 30-second requests, and keep a second vendor as fallback. The Sora shutdown showed what single-vendor dependence costs.
How to Choose
| If You Need… | Use |
|---|---|
| Free testing with real quality | Kling 3.0 free tier, YouTube Shorts (Omni) |
| Native audio, fast iteration | Gemini Omni Flash |
| Frame-level edits to real footage | Runway Aleph 2.0 |
| 30-second single-pass clips | Seedance 2.5 or Wan 3.0 |
| Cheapest per second at length | Wan 3.0 |
| The newest Kling features | Wait for Kling 4.0 (October) |
FAQ
What is the best AI video generator in 2026?
No single winner exists. Gemini Omni Flash is the best all-rounder for quality, audio, and access. Kling 3.0 wins on value, Runway on editing control, and Seedance 2.5 or Wan 3.0 on clip length.
Is Sora still available?
No. The Sora app closed on April 26, 2026, and the API ended on September 24, 2026. Use Veo 3.1 or Gemini Omni, Kling, or Runway instead.
Which AI video generator is free?
Kling offers a daily free credit allowance, but it is watermarked and non-commercial. Gemini Omni Flash is free inside YouTube Shorts and YouTube Create. Runway’s free plan gives a one-time 125-credit grant, enough for roughly 10 seconds of Gen-4.5.
Is Veo 4 or Kling 4.0 out yet?
Google hasn’t announced Veo 4. Its video capability now ships through Gemini Omni. Kling 4.0 is announced for October 2026, with only the Flash variant live for Ultra yearly subscribers.
