The Cheapest AI Video Generation per Second of Output
Pixverse at $0.03-$0.12/sec (tiered). What you give up, what you keep, and when it is the right default for your pipeline.
The verdict up front
Pixverse v6 and Pixverse C1 are the cheapest video generation on fal.ai starting at $0.03/sec (360p no audio, scaling to $0.12/sec for 1080p with audio). That is roughly 13 times cheaper than Veo 3.1 at $0.40 per second. For social iteration, draft loops, and high-volume batch work, Pixverse is the right default. You do not lose much at 1080p. You lose real things above that.

The full price floor
| Model | Price per second |
|---|---|
| Pixverse v6 | $0.03-$0.12 |
| Pixverse C1 | $0.03-$0.12 |
| Grok Imagine | $0.05 |
| Veo 3.1 Lite | $0.05 |
| LTX 2.3 | $0.08 |
| Wan 2.7 | $0.10 |
| Kling v3 Pro | $0.14 |
| Veo 3.1 | $0.40 |
A 5-second draft on Pixverse at the cheapest tier (360p no audio) is $0.15. The same draft on Veo 3.1 is $2.00. That spread is the reason Pixverse should be in every pipeline as the draft tier even if your final ships on a premium model.
What Pixverse v6 gives you at the price floor
- Resolution: 360p, 540p, 720p, 1080p. Default 720p.
- Duration: 1 to 15 seconds. Any integer value.
- Aspect ratios: 16:9, 4:3, 1:1, 3:4, 9:16, 2:3, 3:2, 21:9. Eight options, including 21:9 cinematic and 2:3 for social.
- Negative prompt: yes, with a long default example provided.
- Seed: yes, for reproducibility.
- Style field: yes, a
styleparameter for stylistic control. - Multi-clip: optional
generate_multi_clip_switchflag for dynamic camera changes. - Audio: opt-in via
generate_audio_switch, default off. - Thinking mode:
thinking_typeparameter toggles prompt optimization.
This is not a stripped model. It is a full-featured video generator at a fraction of the price.
What you give up

Audio is off by default. You have to explicitly enable it. Once on, quality is decent but not Veo-tier. Do not plan dialogue hero shots on Pixverse.
No true 4K. 1080p is the ceiling. If your delivery spec is 4K, Pixverse drafts first, then promote the winner to Veo 3.1 or LTX 2.3.
Lip sync is limited. The model can render speaking characters, but matching specific scripted lines to precise mouth movement is not its strength. Use Veo 3.1 or Kling v3 Pro for that.
Temporal consistency on long clips varies. At 15 seconds you will occasionally see character drift. Shorter clips (under 8 seconds) hold consistency reliably.
What Pixverse C1 differs on
Pixverse C1 is the cinematic variant, released April 2026. Same tiered pricing as V6 (360p $0.030/sec no audio up to 1080p $0.120/sec with audio). Native audio available via the same generate_audio_switch flag. Up to 1080p, up to 15 seconds. The difference versus v6: C1 is tuned for film-grade output aesthetics, v6 is more general-purpose. C1 does not expose thinking_type, style, generate_multi_clip_switch, or negative_prompt in the same way. It is a simpler surface.
For a social feed default, use v6. For cinematic B-roll at the same price, use C1.
When Pixverse is the right default, not just the cheap option
- High-volume social iteration: 50+ draft clips per concept.
- A/B testing ad variants where the visual is cheap enough to throw away.
- Aspect ratio experimentation: 21:9 and 2:3 are native here, not on most competitors.
- Style exploration on new briefs before you commit to a premium model.
- Internal pitch decks where the quality bar is "convey the idea" not "final delivery."
When to not use Pixverse
- Hero dialogue shots with lip sync: use Veo 3.1.
- 4K or 2160p masters: use Veo 3.1 or LTX 2.3.
- Multi-shot narrative with strict per-shot control: use Kling v3 Pro.
- Long-duration continuous action at 1080p with audio-driven motion: use Wan 2.7.
The recipe
Pin your prompt, aspect ratio, and duration on Pixverse v6 starting at $0.03/sec (360p no audio, scaling to $0.12/sec for 1080p with audio). Run 20 drafts. Pick the winner. Re-run that exact prompt with the same seed on your premium model of choice for the final hero delivery. Twenty 5-second drafts on Pixverse at 360p no audio is $3. The same loop on Veo 3.1 is $40. That is your iteration budget right there.