Nextpart.ai

The core chat runs without the usual NSFW filter, so adult stories are allowed by default. The site still enforces hard limits around minors, sexual violence, and cruelty, and it reviews generated content. That combination suits adults who want creative freedom without a totally unmoderated space.

You define appearance, avatar, personality, backstory, and speaking style, then share the character publicly if you want. A good build behaves differently from a generic assistant because the persona holds across turns. Users who skip this step can still chat with thousands of community characters.

Premium keeps 16K of context and Deluxe raises it to 32K, which matters for stories that span many scenes. The character recalls names, relationships, and earlier events instead of resetting. Long sessions still drift eventually, so important plot points are worth restating.

Characters can answer with synthesized speech, and Deluxe unlocks the premium voice set. Voice changes the feel of AI roleplay more than text does, especially for pacing and emotion. The catch is credit use: heavy voice sessions cost more than typing.

You can generate images from the current chat context, including character avatars and scene shots, and the plans add short video generation. This keeps visual worldbuilding inside the same window. Output quality varies with the prompt, and avatar generation on Premium costs 30 credits per image.

The Chats tab holds a large public character catalog sorted by tags such as anime, fantasy, and historical. The interface and chats run in 14 languages, including Spanish, Portuguese, French, German, Japanese, Korean, and Traditional Chinese. That makes Nextpart.ai usable for AI companion chats outside English-speaking markets.