Reactor
Reactor: Programmable real-time video generation with broad model and API coverage. Ranked #164 of 241 in AI Video Generators by our editors (3.0/10); pricing: Paid; best for developers needing real-time video generation.
At a glance
- Editor score3.0 / 10
- PricingPaid
- Best forDevelopers needing real-time video generation
- Paid from$0.10/unit usage-based
- AI avatarsYes
- Founded2025 · San Francisco, California, United States
- Facts checked22 Sep 2026
Where it wins
- Real-time text-to-video, image-to-video, and infinite streaming
- Supports synchronized audio, avatars, video editing, and reference images
- SDK and API access with delivery up to 4K
Where it doesn't
- Usage pricing varies widely by model and reaches $1.8 per minute
- Cloud deployment only
- Support is provided through email and documentation
Our verdict on Reactor
Reactor is a cloud developer platform for building real-time generative-media applications. It targets developers and production teams that need programmable video generation, streaming video, and world-model capabilities through the web or API. The feature set covers text-to-video, image-to-video, video-to-video editing, prompt steering, synchronized audio, reference-image generation, and real-time avatar or talking-head video. Small, mid-market, and enterprise teams can use the platform, with SDK and API access supporting integration into broader applications.
Pricing is usage-based by model rather than organized into conventional recurring plans. Helios usage costs $0.102 per minute and includes interactive real-time generation, text-to-video, image-to-video, and infinite streaming. H3 Reference Turbo Realtime usage is $0.42 per minute, adding synchronized audio, one to nine reference images, and 5.167–15.083 second clips. Orbis-Stable usage costs $0.582 per minute for prompt-steerable video, text or text-plus-image input, and 1080p, 2K, or 4K delivery. LTX usage costs $1.8 per minute for real-time avatars, script-driven talking heads, and voice with lip-synced video.
Reactor stands out when low-latency generation and model choice matter more than a narrow video workflow. Its catalog combines streaming, reference images, audio, avatars, editing, and multiple output resolutions, while GDPR support and documentation provide a defined baseline for platform evaluation. The trade-off is that teams must select and budget by model, and deployment is cloud-based. Developers building programmable video products should consider Reactor; teams seeking a conventional recurring-plan structure or non-cloud deployment should choose an alternative.
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Reactor pricing
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Reactor fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | $0.10/unit usage-based |
| Text-to-video | Yes |
| Image-to-video | Yes |
| AI avatars | Yes |
| Maximum video length | Not verified |
| Maximum resolution | 4k |
| API access | Yes |
| Commercial use | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Paid (source) |
| Website | reactor.inc |
| Facts checked | 22 Sep 2026 |
Alternatives to Reactor
- Google VeoText, image, and audio generation with camera controls and Google platform access.9.4
- RunwayA broad generative media platform with professional workflows, APIs, and mobile apps.9.3
- TikTok Symphony Creative StudioA free, TikTok-focused AI studio for creating, editing, and exporting social videos.9.2
See all Reactor alternatives →
Also Ranked In
Reactor is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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