> ## Documentation Index
> Fetch the complete documentation index at: https://docs.eversince.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

## Getting started

<AccordionGroup>
  <Accordion title="Do I need video editing experience to use Eversince?">
    No. Describe what you want and the agent handles the rest. If you have editing expertise, you can direct every detail.
  </Accordion>

  <Accordion title="Can I upload my own images, videos, or audio?">
    Yes. Upload images, videos, or audio. The agent can use them as creative references, generate from them, or build a project around them. You can also paste links for context.
  </Accordion>

  <Accordion title="Can I generate just images or audio without video?">
    Yes. Tell the agent what you need.
  </Accordion>

  <Accordion title="Is there a limit to how long my prompt can be?">
    Yes, 8,000 characters. Same for the API `brief` and `message` fields.
  </Accordion>
</AccordionGroup>

## How the agent works

<AccordionGroup>
  <Accordion title="What AI models does the agent use?">
    The agent runs on Claude (Opus 4.7, Opus 4.6, or Sonnet 4.6) for reasoning, and orchestrates the latest AI image, video, and audio models for creative output. See [Models](/features/models) for the full list.
  </Accordion>

  <Accordion title="What is the difference between Opus and Sonnet?">
    Opus 4.7 is the most capable, with efficient workflows and precise instruction following. Opus 4.6 offers deep reasoning well-suited to complex multi-scene projects and nuanced direction. Sonnet 4.6 responds faster at a lower cost per run and works well for straightforward tasks. The agent picks automatically by default; you can override per project.
  </Accordion>

  <Accordion title="Does the agent learn my preferences?">
    Yes. The agent has memory within each project, and long-term memory that carries across projects.
  </Accordion>

  <Accordion title="How many languages does Eversince support?">
    Eversince can deliver projects in 60+ languages, including voiceover, captions, and text overlay localization. See [Supported languages](/features/timeline#supported-languages) for the full list.
  </Accordion>

  <Accordion title="Can the agent maintain character consistency?">
    Yes. The agent can generate character variations for you to choose from. Once selected, the character is saved and used consistently across scenes.
  </Accordion>

  <Accordion title="Does the browser tab need to stay open?">
    The agent works autonomously while the tab is open. You can switch to other tabs. If you close the Eversince tab, any generation in progress will finish, but the agent will stop after that. Your work is saved and you can reopen anytime.
  </Accordion>
</AccordionGroup>

## Credits and usage

<AccordionGroup>
  <Accordion title="How do Eversince credits work?">
    Credits are how Eversince measures creation. Video and image generations, voiceover, music, and sound effects each use a few credits. Video credits depend on the model and duration, while agent tasks vary by complexity.
  </Accordion>

  <Accordion title="Do unused credits roll over?">
    Monthly credits reset each billing cycle. Purchased credit packs never expire.
  </Accordion>

  <Accordion title="What happens to credits if a generation fails?">
    Credits are refunded automatically for failed generations. If you don't see a refund, contact us and we'll verify.
  </Accordion>

  <Accordion title="What is the difference between Free and Pro?">
    Free gives you access to the studio, the agent, and the API. Pro gives the agent the ability to generate for you, with all models, variations, 60+ languages, 4K export, and voice mode. See [eversince.ai/pricing](https://eversince.ai/pricing).
  </Accordion>

  <Accordion title="Do I own what I create?">
    Yes, 100%. Everything you make with Eversince is yours, with full commercial usage rights.
  </Accordion>
</AccordionGroup>

## Support

<AccordionGroup>
  <Accordion title="How do I get help?">
    Email [support@eversince.ai](mailto:support@eversince.ai) or use the feedback endpoint (`POST /feedback`) from the API.
  </Accordion>
</AccordionGroup>

## API

<AccordionGroup>
  <Accordion title="How do I get an Eversince API key?">
    Go to your [account settings](https://eversince.ai/app/settings) to create an API key.
  </Accordion>

  <Accordion title="Can I use the API and studio together?">
    Yes. API projects appear in the studio and studio projects can be adopted for API management via `POST /projects/adopt`.
  </Accordion>

  <Accordion title="Does Eversince support webhooks?">
    Yes. Eversince supports webhooks for status change notifications and polling with status-aware intervals.
  </Accordion>

  <Accordion title="What are the API rate limits?">
    See [API Overview](/api/overview) for current rate limits.
  </Accordion>
</AccordionGroup>