When did AI video models open to developers?
The notes read date these openings: Runway's API in September 2024, Kling's API taking models by November, Nova Reel in Amazon Bedrock in December, Veo 2 generally available in the Gemini API in April 2025, a PixVerse MCP server the same month, Sora and LTX APIs in October 2025, and video in xAI's API in January 2026. As of 2026-09-25.
| Date | Line | Version | What changed |
|---|---|---|---|
| 16 September 2024 | Runway | Not named in the note | The Runway API opens |
| 15 November 2024 | Kling AI | Kling 1.5 | Kling 1.5 Pro opens in the API for image-to-video only |
| 3 December 2024 | Amazon Nova Reel | Nova Reel 1.0 | Nova Reel launches in Amazon Bedrock for short videos from text and images, with control of style and pacing |
| 9 April 2025 | Google Veo | Veo 2 | Veo 2 becomes generally available in the Gemini API for text and image input |
| 29 April 2025 | PixVerse | Not named in the note | PixVerse MCP server released |
| 6 October 2025 | Sora | Sora 2 | The API gains a videos endpoint for Sora 2 and Sora 2 Pro |
| 29 October 2025 | LTX | Not named in the note | The LTX API opens with text-to-video and image-to-video |
| 23 December 2025 | LTX | Not named in the note | The developer console opens to self-service sign-up |
| 28 January 2026 | Grok Imagine | Not named in the note | Video generation opens in the xAI API |
| 25 February 2026 | Kling AI | Kling 3.0 | Kling 3.0 and 3.0 Omni reach the API; elements can be built from video |
| 15 March 2026 | Grok Imagine | Not named in the note | The Batch API accepts video generation jobs |
| 3 May 2026 | LTX | Not named in the note | Async versions of every video generation endpoint, in beta |
| 5 August 2026 | MiniMax Hailuo | Hailuo 3.0 | Runway's developer API adds a model it names MiniMax Hailuo 3.0 |
Inclusion rule. Entries whose note bears directly on the question. Order. By date, oldest first; undated rows last.
An API note matters to anyone building on a model rather than using its app. The register records the first dated developer entry each line has, then the changes that follow: self-service sign-up at LTX, batch jobs at xAI and OpenAI, async endpoints at LTX.
Platforms open developer routes to other makers' models too. Runway's developer API added a model it names MiniMax Hailuo 3.0 in August 2026, and its MCP server took several outside models that summer.
1In the makers' words
Runway, 16 September 2024
Use our simple-to-integrate API to access our latest and most powerful video models inside a safe and reliable environment.
Runway, changelog
- Runway APIThe Runway API opens
Kling AI, 15 November 2024
Video V1.5 Pro Model Now Open for Video Generation: Image-to-Video Functionality Enabled, Text-to-Video Unsupported
Kling AI, API updates
- 11/15/2024Kling 1.5 Pro opens in the API for image-to-video only
Amazon Nova Reel, 3 December 2024
Using Amazon Nova Reel, you can produce short videos through text prompts and images, control visual style and pacing, and generate professional-quality video content for marketing, advertising, and entertainment.
AWS News Blog, introducing Amazon Nova
- December 3Nova Reel launches in Amazon Bedrock for short videos from text and images, with control of style and pacing2024
Google Veo, 9 April 2025
Released veo-2.0-generate-001 , a generally available (GA) text- and image-to-video model
Google, Gemini API changelog
- April 9Veo 2 becomes generally available in the Gemini API for text and image input2025
PixVerse, 29 April 2025
PixVeser MCP released
PixVerse, API changelogs
- 2025/04/29PixVerse MCP server released
Sora, 6 October 2025
Launched v1/videos for rich, detailed, and dynamic video generation and remixing with our latest Sora 2 and Sora 2 Pro models.
OpenAI, API changelog
- October 6The API gains a videos endpoint for Sora 2 and Sora 2 Pro2025
LTX, 29 October 2025
Initial public API with image-to-video and text-to-video endpoints.
LTX, API changelog
- LTX Video API LaunchThe LTX API opens with text-to-video and image-to-video
LTX, 23 December 2025
The developer console is now open to the public with self-service signup
LTX, API changelog
- Developer Console Public LaunchThe developer console opens to self-service sign-up
Grok Imagine, 28 January 2026
Video Generation and a revamped Image Generation are now available.
xAI, API release notes
- Jan 28Video generation opens in the xAI API
Kling AI, 25 February 2026
Supports the creation of elements through video
Kling AI, API updates
- 02/25/2026Kling 3.0 and 3.0 Omni reach the API; elements can be built from video
Grok Imagine, 15 March 2026
The Batch API now supports image generation, image editing, and video generation in addition to chat completions.
xAI, API release notes
- Mar 15The Batch API accepts video generation jobs
LTX, 3 May 2026
Async API expanded to all video generation endpoints (Beta)
LTX, API changelog
- Async APIAsync versions of every video generation endpoint, in beta
MiniMax Hailuo, 5 August 2026
MiniMax Hailuo 3.0 is now live on Runway Dev.
Runway, changelog
- MiniMax Hailuo 3.0Runway's developer API adds a model it names MiniMax Hailuo 3.0
API, plans and availability · Which AI video models add HDR or higher frame rates? · When did lip-sync arrive in AI video models?
2Notes read
- Runway, changelog, read 2026-09-25
- Kling AI, API updates, read 2026-09-25
- AWS News Blog, introducing Amazon Nova, read 2026-09-25
- Google, Gemini API changelog, read 2026-09-25
- PixVerse, API changelogs, read 2026-09-25
- OpenAI, API changelog, read 2026-09-25
- LTX, API changelog, note of 29 October 2025, read 2026-09-25
- LTX, API changelog, note of 23 December 2025, read 2026-09-25
- xAI, API release notes, read 2026-09-25
- LTX, API changelog, note of 3 May 2026, read 2026-09-25