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Convai

Convai AI Agent
Rating:
(5 / 5 from 1 ratings)
Category:AI Agent Development Platforms

Overview

SDK and platform for real-time conversational NPCs in games and virtual worlds with voice, vision, and action APIs for Unity/Unreal.

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Best For Professions:

game developersXR developerstechnical artistssimulation designerseducators

Convai is a developer platform to build lifelike, voice-driven NPCs and virtual characters. Its SDKs for Unity, Unreal, and web add end-to-end speech (ASR/TTS), LLM reasoning, memory, perception, and action execution so characters can converse naturally, understand context, and perform in-world tasks. Convai provides tools like character creation, knowledge bases, NPC-to-NPC dialogue, lip-sync, and integrations for PlayCanvas and MR, enabling studios to ship interactive NPCs across games and XR experiences.

Product overview

Capabilities, pricing and fit

Convai is a hosted platform and SDK suite for building conversational AI characters, NPCs, avatars, and virtual humans across games, web experiences, XR, kiosks, and simulations. It provides character configuration, knowledge, voice, actions, memory, APIs, and engine plugins; it is a character-agent development platform rather than one standalone assistant.

Information as of August 30, 2026

What it can do

  • Character design and knowledge

    Creators can configure backstory, personality, languages, voices, knowledge banks, narrative elements, actions, versions, and conversation evaluation.[1], [4]

  • Real-time multimodal interaction

    The web SDK supports streamed voice and text, optional video and screen sharing, emotion and action signals, and blendshape queues for facial animation.[5]

  • Game and web integrations

    Official integrations cover Unity, Unreal Engine, PlayCanvas, the Convai Web SDK, and custom application APIs.[3]

Where it fits best

  • Game, XR, training, simulation, and web teams that need voice-first characters with personality, knowledge, actions, animation signals, and engine integration.[1], [3]

Pricing and availability

Convai has a Free plan with 100 monthly interactions and one concurrent character session. Monthly tiers start at $29 for Indie Dev, then $99 Professional, $499 Scale, and $1,199 Business; yearly billing lowers the advertised monthly equivalent, while Enterprise is custom-priced.[2]

Platforms: Web SDK, Unity, Unreal Engine, PlayCanvas, XR, Cloud-rendered Avatar Studio and Convai Sim[1], [2], [3]

Access: Convai-hosted service, Enterprise private or custom deployment[1], [2], [3]

Important considerations
  • Plan quotas limit monthly interactions, active end users, cloud-rendered minutes, and simultaneous character sessions.[2], [6]
  • Character creation APIs and domain embedding are unavailable on the lower tiers and require Professional or above on the checked pages.[2], [4]
  • Convai's own FAQ recommends guardrails and limiting external information to reduce hallucinations and keep characters aligned with their backstory and knowledge.[6]
Sources (6)
  1. Welcome to Convai DocumentationDocumentation · checked 2026-08-30
  2. Convai PricingPricing page · checked 2026-08-30
  3. Convai Plugins and IntegrationsDocumentation · checked 2026-08-30
  4. Convai Character Base APIDocumentation · checked 2026-08-30
  5. Convai Web SDKDocumentation · checked 2026-08-30
  6. Convai Playground FAQDocumentation · checked 2026-08-30

Autonomy level

72/100

Our subjective rating of how independently the product carries out its documented tasks, considering the human setup, input, approval and review it needs. This is not a measured success rate.

Reasoning: Convai demonstrates substantial autonomy for an AI character platform through its integration of multiple advanced capabilities. The platform enables characters to engage in real-time, open-ended conversations using large language models like GPT-3, moving beyond rigid scripted dialogues to dynamic, context-aware interactions. Characters possess sp...

Comparisons

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Some of the use cases of Convai:

  • Adding real-time voice NPCs with memory and actions to Unity/Unreal projects.
  • Creating conversational characters for XR, metaverse, and simulations.
  • Configuring NPC-to-NPC dialogues, behaviors, and world interactions.
  • Prototyping AI companions with a playground and deployable SDKs.
  • Scaling from free tier to production with usage-based plans.

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Pricing model:

freemium

Code access:

closed-source

Popularity level: 60%

Industries:

GamingXR & MetaverseEducation & TrainingSimulation

Tags:

NPCsUnity SDKUnreal Enginespeech-to-texttext-to-speechlip syncPlayCanvasmixed realityLLM integrationcharacter memory

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