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Freemium

Convai

Convai gives game studios and virtual-world builders an API for lifelike 3D AI characters that see, hear, and hold spoken conversations.

4.2 AI Infrastructure & Agent Tooling
4.2 Very good 4.2
Deep native integration with the two most-used game engines Interaction-based overage charges make cost harder to predict at scale
Reviewed by Challenging Voice Editorial · Updated Aug 2026 How we rate
PricingFrom $29/mo
Free planYes
CompanyConvai Technologies Inc.
PlatformsAPI, Web
CategoryAI Infrastructure & Agent Tooling
Founded2022
Last reviewedAug 2026
Ask AI about Convai ChatGPT Claude Perplexity

Overview

Convai is a conversational AI infrastructure company for virtual worlds, founded in April 2022 by Purnendu Mukherjee and Prashant Mishra and based in San Jose, California. Mukherjee previously worked as a deep learning engineer at NVIDIA on conversational AI and 3D avatar work, and the company raised a $5 million seed round in September 2022.

Convai ships as an SDK and API that plugs into Unreal Engine and Unity, giving non-player characters multimodal perception, sight and hearing, plus voice, gesture, and memory across a conversation rather than scripted dialogue trees. Developers upload knowledge documents and personality settings per character, and Convai handles the speech recognition, language model reasoning, and text-to-speech pipeline behind each NPC.

The tool is built for game studios, XR developers, and enterprise simulation teams rather than casual users, with over 1,000 studios and indie developers building on it since launch. Pricing runs Free for prototyping, $29 a month for the Indie Dev tier, up through $1,199 a month for Business, with custom Enterprise and revenue-share Partner plans for larger deployments.

Key features

  • Multimodal AI characters with sight, hearing, and voice for Unreal and Unity
  • Per-character knowledge base upload for grounded, on-topic dialogue
  • Memory across conversations rather than one-off scripted responses
  • No-code Convai Sim platform for building interactive simulations
  • Character Crafting APIs for programmatic control of NPC behavior
  • Credit-based interaction pricing that scales with usage beyond plan quotas

Screenshots & demo

Demo video

Screenshots

Convai screenshot 1

Pricing

Convai has a free plan, and paid plans start at $29/mo.

  • Pricing modelFreemium
  • Starting priceFrom $29/mo
  • Free planYes
Visit Convai

Pricing is provided as a guide. Check the official site for the latest plans.

Is Convai expensive?

Convai starts at $29, which is right at the AI Infrastructure & Agent Tooling median of $29 a month across the 70 priced tools we list in that category.

The cheapest paid option in AI Infrastructure & Agent Tooling starts at $0.2 and the most expensive at $1,250.

54% of AI Infrastructure & Agent Tooling tools in the directory offer a free tier, and this is one of them.

Compared against every priced listing in AI Infrastructure & Agent Tooling, recalculated as the catalogue changes. Method and the full market breakdown are in our AI tool pricing study.

Pros & cons

Pros

  • Deep native integration with the two most-used game engines
  • Free tier lets solo developers prototype before committing to a paid plan
  • Founding team's NVIDIA conversational-AI background shows in the product depth
  • Active studio adoption (1,000+) signals the tooling holds up in production

Cons

  • Interaction-based overage charges make cost harder to predict at scale
  • Business and Enterprise tiers require a real budget most hobbyists lack
  • Best suited to teams already building in Unreal or Unity, less useful outside game engines
  • Knowledge size caps on lower tiers limit how much lore a character can draw on

How it compares

ToolRatingFreeFromBest known for
Convai (this tool)4.2Yes$29/moMultimodal AI characters with sight, hearing, and voice for Unreal and Unity
rct AI3.5No—Adaptive NPC behaviour beyond scripted trees

Alternatives to Convai

1 tool matched to Convai on what it does, its category and its price.

Frequently asked questions

What is Convai?
Convai is a conversational AI infrastructure company for virtual worlds, founded in April 2022 by Purnendu Mukherjee and Prashant Mishra and based in San Jose, California.
Is Convai free?
Yes, Convai offers a free plan. Paid plans unlock more features and higher usage limits, starting at $29/month.
How much does Convai cost?
Convai starts at $29 per month. See the pricing plans above for full details.
What are the best Convai alternatives?
The closest matches in the directory are rct AI, compared side by side above.

Reviews

4.2 Editorial rating No reviews yet

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