Honest pricing.

Three dimensions. Clearly stated. No hidden fees, no per-seat charges, no per-region surcharges. Choose a base plan and pay for what you use.

Monthly billing is for teams still evaluating. The 10-year one-time option exists for teams that hate recurring SaaS subscriptions and for seasonal workloads where paying during quiet months feels wrong.

Messages
$2.00
 / million messages
Connection Minute
$1.00
 / million minutes
Channel Minute
$1.00
 / million channel minutes
Free
For development and testing
$0
 /month
  • 200 concurrent connections
  • 500 messages / second
  • 6M messages / month
Standard
For teams getting started in production
$20
or $480 10-year license/month
  • 10k concurrent connections
  • 10k concurrent channels
  • 2.5k messages / second
  • Unlimited messages / month
Pro
For growing teams with higher demands
$250
or $6,000 10-year license/month
  • 50k concurrent connections
  • 50k concurrent channels
  • 10k messages / second
  • Unlimited messages / month
Prime
For large-scale, high-throughput workloads
$1,200
or $28,800 10-year license/month
  • 250k concurrent connections
  • 250k concurrent channels
  • 50k messages / second
  • Unlimited messages / month
Enterprise
Custom limits, SLAs, and dedicated support
Custom
  • Custom concurrent connections
  • Custom concurrent channels
  • Custom message rate
  • Unlimited messages / month

Estimate your cost

Enter your expected usage to see a cost breakdown.

$2.00 / million

$1.00 / million

$1.00 / million

Cost breakdown

Pro — 10-year license (one-time)$6,000.00
License amortized / month (÷ 120)$50.00
Messages$100.00
Connection minutes$10.00
Channel minutes$10.00
Additional data transferFree
Effective monthly total$170.00

How does this compare to Ably?

Ably charges on messages, peak connections, and channels: three meters running simultaneously. Add Chat SDK or Spaces and those meters multiply. At similar throughput, Celeris pricing is typically 60–80% lower. See the full comparison:

Celeris vs Ably: full comparison

Pricing FAQ

† p95 32ms round-trip measured on a single AWS c8g.large EC2 instance during a 25-minute sustained test at 96,114 msg/s. Latency includes k6 test-client overhead. Production latency at lower sustained throughput will typically be lower.

  • Free
    For development and testing
    $0
     /month
    Package Pricing & Usage
    Package price
    $0/mo
    Messages included
    6M / month
    Connection minutes
    $1.00 / M min
    Channel minutes
    $1.00 / M min
    Data transfer per GiB
    $0.00 / GiB
    Limits
    Max message rate
    500 / sec
    Concurrent connections
    200
    Concurrent channels
    —
    Max presence members / channel
    100
    Max subscribers / channel
    50
    Max message storage period
    1 day
    Max message size
    64 KB
    Support
    Community support
    Email support
    Shared Slack / Teams channel
    Response times by severity
    Enhanced technical support
    Scheduled on-call engineers
    Live incident reporting
    Incident detection
    Architectural guidance
    Dedicated CSM
    Dedicated SA
    Early roadmap access
    Security & Compliance
    Two-factor authentication (2FA)
    SSO
    Enterprise SSO
    Multi-account org support
    SOC II compliant
    SOC II report
    Security questionnaires
    HIPAA BAA
    GDPR / CCPA
    Dedicated clusters
    Regional data constraints
    Custom CNAME
    PrivateLink / VPN
    Account audit logs
    DDoS protection
    Custom security rules
    Platform
    WebSocket edge infrastructure
    Message delivery latency
    p95 32ms†
    99.95% uptime SLA
    Message survivability
    Developer dashboards
    Analytics UI / API
    Control API
    All platforms supported
    Hosted queues
    20+ integrations
    Webhooks
    Serverless functions
    Streaming integrations
    Datadog
    Capabilities
    High-frequency pub/sub
    Chat & messaging
    Multiplayer & gaming
    Collaborative applications
    AI session transport
    BYOD export connectors
    Binary messaging (MessagePack, Protobuf)
  • Standard
    For teams getting started in production
    $20
    or $480 10-year license/month
    Package Pricing & Usage
    Package price
    $20/mo
    Messages included
    Unlimited
    Connection minutes
    $1.00 / M min
    Channel minutes
    $1.00 / M min
    Data transfer per GiB
    $0.00 / GiB
    Limits
    Max message rate
    2.5k / sec
    Concurrent connections
    10k
    Concurrent channels
    10k
    Max presence members / channel
    1k
    Max subscribers / channel
    500
    Max message storage period
    7 days
    Max message size
    64 KB
    Support
    Community support
    Email support
    Shared Slack / Teams channel
    Response times by severity
    Enhanced technical support
    Scheduled on-call engineers
    Live incident reporting
    Incident detection
    Architectural guidance
    Dedicated CSM
    Dedicated SA
    Early roadmap access
    Security & Compliance
    Two-factor authentication (2FA)
    SSO
    Enterprise SSO
    Multi-account org support
    SOC II compliant
    SOC II report
    Security questionnaires
    HIPAA BAA
    GDPR / CCPA
    Dedicated clusters
    Regional data constraints
    Custom CNAME
    PrivateLink / VPN
    Account audit logs
    DDoS protection
    Custom security rules
    Platform
    WebSocket edge infrastructure
    Message delivery latency
    p95 32ms†
    99.95% uptime SLA
    Message survivability
    Developer dashboards
    Analytics UI / API
    Control API
    All platforms supported
    Hosted queues
    20+ integrations
    Webhooks
    Serverless functions
    Streaming integrations
    Datadog
    Capabilities
    High-frequency pub/sub
    Chat & messaging
    Multiplayer & gaming
    Collaborative applications
    AI session transport
    BYOD export connectors
    Binary messaging (MessagePack, Protobuf)
  • Pro
    For growing teams with higher demands
    $250
    or $6,000 10-year license/month
    Package Pricing & Usage
    Package price
    $250/mo
    Messages included
    Unlimited
    Connection minutes
    $1.00 / M min
    Channel minutes
    $1.00 / M min
    Data transfer per GiB
    $0.00 / GiB
    Limits
    Max message rate
    10k / sec
    Concurrent connections
    50k
    Concurrent channels
    50k
    Max presence members / channel
    5k
    Max subscribers / channel
    2k
    Max message storage period
    30 days
    Max message size
    256 KB
    Support
    Community support
    Email support
    Shared Slack / Teams channel
    Response times by severity
    Enhanced technical support
    Scheduled on-call engineers
    Live incident reporting
    Incident detection
    Architectural guidance
    Dedicated CSM
    Dedicated SA
    Early roadmap access
    Security & Compliance
    Two-factor authentication (2FA)
    SSO
    Enterprise SSO
    Multi-account org support
    SOC II compliant
    SOC II report
    Security questionnaires
    HIPAA BAA
    GDPR / CCPA
    Dedicated clusters
    Regional data constraints
    Custom CNAME
    PrivateLink / VPN
    Account audit logs
    DDoS protection
    Custom security rules
    Platform
    WebSocket edge infrastructure
    Message delivery latency
    p95 32ms†
    99.95% uptime SLA
    Message survivability
    Developer dashboards
    Analytics UI / API
    Control API
    All platforms supported
    Hosted queues
    20+ integrations
    Webhooks
    Serverless functions
    Streaming integrations
    Datadog
    Capabilities
    High-frequency pub/sub
    Chat & messaging
    Multiplayer & gaming
    Collaborative applications
    AI session transport
    BYOD export connectors
    Binary messaging (MessagePack, Protobuf)
  • Prime
    For large-scale, high-throughput workloads
    $1,200
    or $28,800 10-year license/month
    Package Pricing & Usage
    Package price
    $1,200/mo
    Messages included
    Unlimited
    Connection minutes
    $1.00 / M min
    Channel minutes
    $1.00 / M min
    Data transfer per GiB
    $0.00 / GiB
    Limits
    Max message rate
    50k / sec
    Concurrent connections
    250k
    Concurrent channels
    250k
    Max presence members / channel
    25k
    Max subscribers / channel
    10k
    Max message storage period
    90 days
    Max message size
    1 MB
    Support
    Community support
    Email support
    Shared Slack / Teams channel
    Response times by severity
    Enhanced technical support
    Scheduled on-call engineers
    Live incident reporting
    Incident detection
    Architectural guidance
    Dedicated CSM
    Dedicated SA
    Early roadmap access
    Security & Compliance
    Two-factor authentication (2FA)
    SSO
    Enterprise SSO
    Multi-account org support
    SOC II compliant
    SOC II report
    Security questionnaires
    HIPAA BAA
    GDPR / CCPA
    Dedicated clusters
    Regional data constraints
    Custom CNAME
    PrivateLink / VPN
    Account audit logs
    DDoS protection
    Custom security rules
    Platform
    WebSocket edge infrastructure
    Message delivery latency
    p95 32ms†
    99.95% uptime SLA
    Message survivability
    Developer dashboards
    Analytics UI / API
    Control API
    All platforms supported
    Hosted queues
    20+ integrations
    Webhooks
    Serverless functions
    Streaming integrations
    Datadog
    Capabilities
    High-frequency pub/sub
    Chat & messaging
    Multiplayer & gaming
    Collaborative applications
    AI session transport
    BYOD export connectors
    Binary messaging (MessagePack, Protobuf)
  • Enterprise
    Custom limits, SLAs, and dedicated support
    Custom
    Package Pricing & Usage
    Package price
    Custom
    Messages included
    Unlimited
    Connection minutes
    Custom
    Channel minutes
    Custom
    Data transfer per GiB
    Custom
    Limits
    Max message rate
    Custom
    Concurrent connections
    Custom
    Concurrent channels
    Custom
    Max presence members / channel
    Custom
    Max subscribers / channel
    Custom
    Max message storage period
    Custom
    Max message size
    Custom
    Support
    Community support
    Email support
    Shared Slack / Teams channel
    Response times by severity
    Enhanced technical support
    Scheduled on-call engineers
    Live incident reporting
    Incident detection
    Architectural guidance
    Dedicated CSM
    Dedicated SA
    Early roadmap access
    Security & Compliance
    Two-factor authentication (2FA)
    SSO
    Enterprise SSO
    Multi-account org support
    SOC II compliant
    SOC II report
    Security questionnaires
    HIPAA BAA
    GDPR / CCPA
    Dedicated clusters
    Regional data constraints
    Custom CNAME
    PrivateLink / VPN
    Account audit logs
    DDoS protection
    Custom security rules
    Platform
    WebSocket edge infrastructure
    Message delivery latency
    Custom SLA
    99.95% uptime SLA
    Message survivability
    Developer dashboards
    Analytics UI / API
    Control API
    All platforms supported
    Hosted queues
    20+ integrations
    Webhooks
    Serverless functions
    Streaming integrations
    Datadog
    Capabilities
    High-frequency pub/sub
    Chat & messaging
    Multiplayer & gaming
    Collaborative applications
    AI session transport
    BYOD export connectors
    Binary messaging (MessagePack, Protobuf)