OpenObserve vs Sellio: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of OpenObserve and Sellio — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
OpenObserve
OpenObserve
Open-source unified observability for logs, metrics and traces, with an AI SRE agent that correlates signals and an LLM cost and eval monitor.
Key features
- Unified Telemetry Store: Holds logs, metrics, traces, RUM, session replay and error tracking in a single system instead of separate tools per signal type.
- Columnar Parquet Storage in Rust: Built on the DataFusion engine with no index to build, which underpins the claimed 140x storage and 30x compute reduction versus Elasticsearch.
- Autocorrelation Engine: Continuously pairs signals across frontend, API, application, database, network and infrastructure layers at over a million signals per second.
- AI SRE Agent: Investigates an incident by building a service graph, quantifying SLO and revenue impact, identifying the root cause from trace evidence, and applying a corrective action such as a rollback.
- Proactive Daily Briefing: Reviews every service over a rolling 14-day window and flags the ones degrading, with the deploy or change that coincided with the regression.
- Agentic and LLM Observability: Tracks token spend, per-model usage mix and error rates across models in production, with failed evaluations shown alongside prompt, output and grader score.
- Transparent Usage Pricing: Charges per GB ingested and per GB queried with retention included, rather than tiered seat or host licensing.
- Self-Hosted or Managed Cloud: The same platform can run entirely inside your own infrastructure or as a fully managed service, including BYOB for enterprise deployments.
Best for
- Cutting Observability Spend: Replace an Elastic or Datadog deployment while keeping a year of log retention, using far less storage and compute for the same data.
- Automated Incident Triage: Let the SRE agent correlate an error-rate spike to a specific deploy and propose the rollback before an engineer is paged.
- Monitoring LLM Applications in Production: Track token cost, model mix and evaluation failures across several models serving live traffic.
- Catching Slow Regressions: Surface a service whose p95 latency quietly tripled after an index rebuild, which threshold alerting would miss.
- Full-Stack Root Cause Analysis: Trace a checkout failure from the browser through the API and into the database on one correlated timeline.
- Compliance-Constrained Deployments: Self-host the whole observability stack so telemetry never leaves your own infrastructure.
- SLO Management: Measure which service level objectives an ongoing incident is putting at risk and how much of a user flow is affected.
Sellio
Sellio
Sellio is an AI customer support platform that unifies live chat, WhatsApp, Instagram, Telegram and email in one shared inbox with optional AI agents.
Key features
- Shared Inbox: One inbox for website chat, WhatsApp, Instagram, Telegram and email, keeping every reply, note and handoff in a single thread.
- Live Chat Widget: Embed a brand-matched chat widget on any site with one snippet and capture visitor context up front.
- AI Support Agent: Train an agent on your site, docs and FAQs so it answers first on website chat and hands off to a teammate without losing context.
- Workflow Automations: Build routing rules, chat triggers and task automations to assign and escalate conversations automatically.
- Ticketing: Turn a conversation into a ticket, assign it and keep the full history as work continues.
- Support Analytics: Track volume, response time, CSAT, automation and AI resolution rates, with scheduled reports on higher plans.
- Voice Replies: Let the AI agent answer with a custom voice inside the website widget on the Plus plan.
- Cost Control for AI: Included monthly AI credits with optional top-ups so teams decide when and how much to spend on AI.
Best for
- Ecommerce Support: Run live chat on a Shopify store in the same inbox as WhatsApp, Instagram and email.
- Hospitality Front Desk: Handle guest messages from WhatsApp, Instagram and website chat in one inbox for front desk and ops.
- SaaS Customer Success: Offer website chat first with other channels alongside it for a single team inbox.
- Agency Client Support: Give an agency team a shared inbox to assign, note and resolve client conversations together.
- AI-First First Response: Deploy an AI agent to answer common questions and escalate complex ones to humans.
- Help Desk Ticketing: Raise work from a customer conversation, assign it and keep history for follow-up.