Hermes Agent vs Kestrel

Hermes Agent is software for deployment, incident response, infrastructure troubleshooting, and runbook automation. It is listed for Android, Linux, macOS, web, and Windows, and supports both deployment modes. The free plan costs nothing and includes free models, standard rate limits, and $0 monthly credits. Plus costs $20 a month and includes $22 monthly credits, a $10 rollover cap, 200+ models, hosted tool usage, and high rate limits. Super costs $100 a month, with $110 monthly credits and a $50 rollover cap, alongside 200+ models, hosted tool usage, and high rate limits. Ultra costs $200 a month and includes $220 monthly credits, a $100 rollover cap, 200+ models, hosted tool usage, and high rate limits. The paid tiers share the listed model access, hosted tool usage, and rate-limit level; their stated credit amounts and rollover caps vary. The free tier is limited to free models and standard rate limits, and does not include monthly credits.

Kestrel uses AI agents to automate incident response, cloud provisioning, CI/CD, security, and developer requests for platform engineering. Teams can build workflows with natural language, a visual editor, the CLI, Python SDK, or MCP. After configuration, workflows execute their defined code without a model in the runtime loop. Kestrel offers more than 40 integrations, plus custom HTTP APIs and webhook triggers. It detects Kubernetes, cloud infrastructure, and application incidents, including CrashLoopBackOff, OOMKilled, failed rollouts, IAM changes, and cost anomalies. Deployment options include cloud and self-hosted software, including air-gapped environments on AWS, GCP, Azure, and OCI. Security controls include SAML/OIDC SSO, MFA, workflow-level RBAC, approval gates, and immutable audit logs. Kestrel says tenant data is isolated, customer data is not used to train AI models, and integrations are read-only by default. Its 14-day trial needs no credit card and includes up to 100 workflow executions per day, one Incident Response unit, and up to 10 Cloud AI Copilot chats per day. An always-free plan is listed; Cloud AI Copilot is $100 a month and Incident Response is $200 a month.