Protoface vs. Simli
Protoface offers much higher quality for a similar price, because Simli uses older Gaussian models.
Two strong options for real-time AI avatars
AI avatars are becoming a more natural way for people to interact with software, especially as conversational agents move into support, education, sales, coaching, and consumer apps. Protoface and Simli are both strong products in this space, and each gives teams a practical way to add a human face to real-time AI experiences.
Quality and avatar creation
Protoface is built for teams that care about realism, speed, and flexibility at the same time. It uses premium avatar models that look more expressive and realistic than lower-tier Gaussian model approaches, while still supporting fast custom avatar creation from images. That makes it easier to test new characters, personalize experiences, and keep product iteration moving.
Simli also supports real-time video avatars and custom avatar creation, but its Gaussian model approach is a better fit for teams that prioritize basic coverage over premium visual quality. Custom avatar creation can also take multiple hours, which slows down experimentation when teams need to try many faces or update avatars frequently.
Pricing and avatar scale
Protoface scales at $0.01 per minute, which makes high-quality avatars practical for real production usage. On higher plans, Protoface also supports far more custom avatar slots, including 1,000+ avatars for teams that need broad personalization or many customer-facing characters.
Simli is also priced at $0.01 a minute, and can be 10% cheaper at scale. For those small savings, teams give up significant quality by using a Gaussian model, faster custom avatar creation, and much more room to scale avatar variety.
Protoface is better for most use cases
Protoface is the better fit for most teams because it combines premium-level realism with fast setup, low latency, flexible custom avatars, strong production readiness, and low pricing. Simli could make sense when the absolute lowest minute cost matters most and visual quality is not important. For teams building polished products that need to scale, Protoface is the stronger choice.