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Convai vs NVIDIA ACE

Side-by-side on price, free plans, commercial rights, features and exports.

Convai Higher score

Free plan Paid plans from $29/mo

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NVIDIA ACE

Free

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Convai comes out ahead, 89 to 81, in our AI NPC & Character Dialogue Tools ranking. Convai leads on accessibility, output & integration, features. NVIDIA ACE leads on value. Convai is best for: Indie devs adding talking NPCs to Unity or Unreal. NVIDIA ACE is best for: Studios building high-end, on-device AI characters.

Which should you choose?

Choose Convai if…
  • you work in Unity or Web
  • you need long-term memory
  • you need npcs trigger game actions
Choose NVIDIA ACE if…
  • you want a lower starting price (Free vs From $29/mo)

Side by side

Fact Convai NVIDIA ACE
Score
Best for Indie devs adding talking NPCs to Unity or Unreal.Studios building high-end, on-device AI characters.
Free tier Free tierFree tier
Starting price From $29/moFree
Commercial use AllowedAllowed
Engines Unity, Unreal, WebUnreal
Exports Not listedNot listed
Skill level IntermediateAdvanced
Status ActiveActive
Last verified 2026-10-212026-10-21

★ marks the better option in each row.

Features compared

FeatureConvaiNVIDIA ACE
Unity SDKYesNot confirmed
Unreal SDKYesYes
Built-in voiceYesYes
Long-term memoryYesPartly
NPCs trigger game actionsYesPartly
Runs on deviceNot confirmedYes
Multiple people at onceNot confirmedPartly
Hand or face trackingNot confirmedPartly
Retarget to your own rigNot confirmedPartly
Real-timeNot confirmedYes

Pricing plans

Convai

Free
Free

100 interactions/mo, 60 min cloud avatar studio/Sim

Indie DevCheapest paid
$29/mo

3,000 interactions/mo; $22/mo billed yearly

Professional
$99/mo

10,000 interactions/mo, 3 concurrent sessions; $69/mo yearly

Scale
$499/mo

50,000 interactions/mo, 15 concurrent sessions; $299/mo yearly

Business
$1199/mo

125,000 interactions/mo, 30 concurrent sessions; $499/mo yearly

Enterprise
Custom

SLAs, on-prem option, data ownership controls

NVIDIA ACE

Free
Free

Unreal and Maya plugins MIT-licensed; NIM containers under NVIDIA terms

Add a third tool to this comparison

Score by factor

FactorConvaiNVIDIA ACEEdge
Accessibility 86 74 Convai
Output & integration 72 44 Convai
Commercial rights 100 100 Even
Value 75 100 NVIDIA ACE
Maturity 100 100 Even
Game focus 100 100 Even
Features 90 77 Convai

What each one is

Convai
Convai hosts conversational AI characters with voice, knowledge and actions, with integrations for Unity, Unreal and web. Its Indie plan is $29/month.
NVIDIA ACE
NVIDIA ACE is a set of SDKs and models for digital humans, including Audio2Face facial animation, speech recognition and on-device language models for NPCs.
Best AI NPC & Character Dialogue Tools Convai alternativesNVIDIA ACE alternatives

Frequently asked questions

Is Convai or NVIDIA ACE better?
Convai scores higher in our AI NPC & Character Dialogue Tools ranking (89 vs 81). The right pick depends on the job. Convai is best for: Indie devs adding talking NPCs to Unity or Unreal. NVIDIA ACE is best for: Studios building high-end, on-device AI characters.
Which is cheaper, Convai or NVIDIA ACE?
Convai: free tier, from $29/mo. NVIDIA ACE: free tier, free.