Scalable self-hosted real-time messaging and state sync platform
Stage
Not given
Established
Founded
Not given
2023
Based in
Not given
CY
Pricing model
Paid
Open source
Pricing
Model-based pricing: FLUX.1 [dev] $0.0125 per image, FLUX.1 [schnell] $0.0015 per image, FLUX.1 [pro] $0.02 per image, Stable Diffusion XL $0.002 per image, Wan 2.1 Video $0.2 per video, Hunyuan 3D $0.025 per 3D model. Hardware pricing billed by the second: Nvidia H100 GPU $0.00083 per second, Nvidi
Open source version is free. Centrifugo PRO available with flat licensing (no per-connection or per-message fees) and requires contacting sales for a quote.
Key features
Image generation
Video generation
Image restoration
Image captioning
Model fine-tuning
Speech generation
Automatic scaling
Sub-100ms latency
Python, JavaScript, and REST API support
99.9% uptime guarantee
WebSocket, HTTP-streaming, SSE, WebTransport, and gRPC transports
Channel history and message recovery
Flexible authentication and authorization
State synchronization with transactional consistency
Connection event proxying to backend
Online presence detection for users
Efficient binary Protobuf protocol
Resumable streams and transport fallback for AI applications
What makes it different
Cheapest serverless AI API pricing, saving up to 62% compared to competitors
One-line code deployment
Pay only for what you use, scale to zero when idle
Access to 100+ production-ready AI models
Up to 4x faster performance on diffusion models
Set up once and works forever with no ongoing configuration needed
Handles millions of concurrent connections with minimal hardware
Self-hosted so messages and data never leave your infrastructure
No per-connection or per-message billing
Works in production at scale with proven reliability
Synexa
Centrifugo