What is Crun?
Crun is a unified AI API platform giving developers access to more than 100 video, image, audio, and language models through a single account and API key. Its LLM gateway is OpenAI-compatible, supporting /responses, /messages, and /chat/completions endpoints, while media models like Sora 2, Veo 3.1, Runway, Suno, and Midjourney are accessed through model-specific endpoints with an async task-status system for polling results.
Key features
- Unified API for video, image, audio, and LLM models from one account
- OpenAI-compatible LLM gateway at api.crun.ai supporting /responses, /messages, /chat/completions
- Access to Sora 2, Veo 3.1, Runway API and Runway Aleph, Suno V4, Flux.1 Kontext, and Midjourney API
- Async task queue with task-status polling for media generation jobs
- Comprehensive developer documentation with quickstarts per model family
How to get started
- Sign up at crun.ai
- Generate an API key
- Browse crun.ai/models for the model you need
- Call the relevant endpoint (chat, image, video, or audio) with your key
- Poll the task-info endpoint for async media jobs
Crun pricing
No subscription - you pay per model call at rates listed on crun.ai/pricing, which vary by model and are generally lower than calling each provider's official API directly.
| Plan | Price | Best for |
|---|---|---|
| Pay-as-you-go | Per-model pricing | Developers who want one API key across text, image, video, and audio models |
Our take: One of several unified "one API, many models" aggregators - useful if you want to avoid juggling separate API keys and billing for Sora, Veo, Suno, and Midjourney.
Prices verified 2026-09. Plans change often — confirm on the official site above before you buy.
Use cases
- Developers building apps that need multiple media-generation models without separate contracts
- Startups prototyping across several video or image models before committing to one
- Teams wanting an OpenAI-compatible endpoint for swapping LLM providers
Crun vs. alternatives
| Tool | How it compares |
|---|---|
| Crun | One API for 100+ video, image, audio, and language models, including Sora 2, Veo 3.1, Suno, and Midjourney. |
| CometAPI | CometAPI prices official models at a simpler flat rate (official price x 0.8). |
| Gemini API | Gemini's own API gives direct access to Google's models without aggregator markup. |
FAQ
Is Crun free to use?
Crun's plans: Pay-as-you-go, per-model pricing (no subscription). Pricing and free-tier limits change over time, so check the official site above for the latest details.
What is Crun used for?
One API for 100+ video, image, audio, and language models, including Sora 2, Veo 3.1, Suno, and Midjourney.
Who is Crun best for?
Crun is a good fit for developers building apps that need multiple media-generation models without separate contracts, or startups prototyping across several video or image models before committing to one.
What are the alternatives to Crun?
Commonly compared alternatives include CometAPI and Gemini API, see the comparison above for how they differ.
How much does Crun cost?
Crun has no flat subscription; each model call is billed at its own listed rate (per token, image, or second of audio/video), shown on the pricing page.
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GLast updated: 2026-09 · Reviewed by AIKetra editors · How we evaluate tools · Embed a Featured badge