Convai

Convai is a conversational AI platform for game developers and XR teams building virtual worlds, training sims, and metaverse experiences with lifelike 3D characters and NPCs.

Key capabilities include:

• Role-play character creation with roles, backstories, objectives, expertise, and selectable voices
• Real-time voice-to-voice conversations designed for low-latency interactions in interactive 3D environments
• Multimodal perception and embodiment, characters can see and hear their surroundings and respond with dialogue, voice, gestures, and actions, including complex action sequences
• Developer integrations via Unity and Unreal Engine plugins, plus open APIs/SDKs and a playground for testing before deployment

Pricing: Freemium, with a free plan (limited AI interactions), Indie dev ($29/month or about $22/month billed annually), Professional ($99/month or about $69/month billed annually), Scale ($499/month or about $299/month billed annually), and Business ($1199/month or about $499/month billed annually).

What makes it notable is its focus on embodied, scene-aware agents for real-time virtual environments, combining multimodal perception with engine-level integrations so teams can ship interactive NPC behavior, not just text chat. It also supports adding a knowledge base (document uploads) to ground character responses and reduce hallucinations in production use cases.