In Voice & dialogue, ElevenLabs ranks #1 and Charisma.ai ranks #4. Eleven v4 Turbo is #1 and Eleven v4 is #2 of 97 models on Artificial Analysis's blind-vote text-to-speech leaderboard. These are ElevenLabs' current models. AA text-to-speech leaderboard
Platform for building interactive stories and AI character conversations, with script flow tools and AI voices, published to web, VR or game engines via SDKs.
Text-to-speech, voices, sound effects and music generation; usable for NPC voice lines and SFX.
Verdict
For story-driven AI character conversations on pay-as-you-go credits; its terms assign input and output rights to the customer.
For NPC voice lines and SFX; free-plan output is non-commercial, so a paid plan is required to ship.
Tasks●
NPC & AI characters, Voice & dialogue
Voice & dialogue, Music & SFX
Engines●
Unity, Unreal
Any (standard file export / engine-agnostic)
Free plan●
Paid only No free plan; pay as you go
Free plan 10,000 credits; non-commercial only
Pricing
PRO: pay as you go, US$5 per 50,000 credits (approx. 200 experience minutes). Enterprise: custom. source
Free US$0 (10,000 credits). Starter US$6, Creator US$22 (US$11 first month), Pro US$99, Scale US$299, Business US$990 per month. Enterprise custom. source
Export formats●
n/a (runtime service)
MP3 (default), PCM and other API output formats source
Commercial use●
Commercial use allowed Terms: the customer (story owner) is deemed owner of Input and Output and Charisma assigns those rights to the customer, subject to its terms. source
Commercial on paid plans only Terms: free-plan users may only use the Services for non-commercial purposes; paid-subscription users may use them commercially (subject to the Prohibited Use Policy). source
Rows marked ● differ between the two tools. Licence badges: green = commercial use allowed (including any free plan or trial), amber = paid plans only, restricted, or allowed but with no free plan, red = not allowed, grey = not stated by vendor or not applicable. Read the vendor's current terms before you ship.