
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Character.AI records 154,156,370 monthly visits with +2.2% month-over-month growth and Freemium pricing. HiAPI records 19,717 monthly visits with +27.5% growth and Paid pricing.
One API for AI image, video, and audio generation
| Dimension / Metric | ||
|---|---|---|
| Official Domain | character.ai | hiapi.ai |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 154.16M (154,156,370) | 19.72K (19,717) |
| MoM Traffic Delta | +3.28M (+2.2%) | +4.25K (+27.5%) |
| Primary Market & Share | 🇺🇸 United States (29.6%) | 🇺🇸 United States (49.9%) |
| Direct Visits / mo | 110.73M | 8.86K |
| User Rating | 4.4 | 4.2 |
| Supported Platforms | Website | Website |
Chat with millions of AI characters or build your own
Browse and chat with a vast library of community and official characters across genres and fandoms.
Design a character's look, backstory, personality and voice, then share it with the community.
Talk with characters using voice chats and Voice Notes, not just typed messages.
Long-form, in-character conversations built for storytelling and immersion rather than quick answers.
One API for AI image, video, and audio generation
One endpoint and one request schema across every supported image, video, and audio model, so you integrate once and switch models through a single parameter.
Generated outputs come back as durable links that stay available, removing the need to build and maintain your own storage pipeline.
Models are exposed through official protocols including OpenAI Chat Completions, OpenAI Responses, Anthropic Messages, and Google Interactions.
Built-in MCP tools, reusable Agent Skills, and an llms.txt index let coding agents and assistants discover and call HiAPI on their own.

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Features community-driven roleplay with flexible LLM routing and adult content support, unlike Character.AI's strict filtering.
Features community-driven roleplay with flexible LLM routing and adult content support, unlike Character.AI's strict filtering.

Offers unfiltered and NSFW character roleplay with multi-model switching, whereas Character.AI strictly enforces safety filters.
Offers unfiltered and NSFW character roleplay with multi-model switching, whereas Character.AI strictly enforces safety filters.

SpecialistSpecializes in virtual romantic companions with voice and photo generation, catering more to dating roleplay.
SpecialistSpecializes in virtual romantic companions with voice and photo generation, catering more to dating roleplay.

Features millions of user-generated personas with voice playback, offering a similar casual roleplay experience to Character.AI.
Features millions of user-generated personas with voice playback, offering a similar casual roleplay experience to Character.AI.
Focuses on immersive storytelling and fictional character chats, providing an alternative community roleplay environment.
Focuses on immersive storytelling and fictional character chats, providing an alternative community roleplay environment.
Provides completely unfiltered anime and fantasy character chats, bypassing Character.AI's rigid safety restrictions.
Provides completely unfiltered anime and fantasy character chats, bypassing Character.AI's rigid safety restrictions.
Free / Open-sourceOne API key for hundreds of AI models from every major provider
Free / Open-sourceOne API key for hundreds of AI models from every major provider

Combines character chat with persistent memory and visual companions, competing directly in casual roleplay.
Combines character chat with persistent memory and visual companions, competing directly in casual roleplay.

SpecialistExcels at long-form fiction writing and collaborative storytelling rather than structured character chat rooms.
SpecialistExcels at long-form fiction writing and collaborative storytelling rather than structured character chat rooms.

One API for 1,500+ production-ready generative media models

SpecialistDelivers deeper personal companion dynamics with advanced memory and realistic selfie generation, but fewer public characters.
SpecialistDelivers deeper personal companion dynamics with advanced memory and realistic selfie generation, but fewer public characters.