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Cloud · head to head

Cilium vs You.com

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Free plan
Yes
Full reviewWebsite
You.com logo

You.com

AI

Web search and data extraction APIs built for AI agents and LLMs

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments; You.com pricing tiers beyond the pay-as-you-go table are not published and require contacting sales for volume discounts.
  • They diverge on capability: Cilium covers eBPF datapath, You.com covers Web Search API.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Cilium and You.com actually diverge.

Attributes where Cilium and You.com differ
AttributeCiliumYou.com
Pricing modelOpen source, no licence feeusage-based
PlatformsKubernetes, Linuxweb, api
CategoryCloudAI

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cilium

  • eBPF datapath
  • Identity-based policy
  • Hubble observability
  • Sidecar-free mesh

Only in You.com

  • Web Search API
  • Contents API
  • Answer API
  • Research API
  • Zero data retention
  • SOC 2 certification

What people use each for

The jobs each tool is most often brought in to do.

Cilium

  • Kubernetes networking at a scale where iptables-based CNI performance degradesnot You.com
  • Network policy expressed on workload identity rather than fragile IP rulesnot You.com
  • Seeing which services actually talk to each other, and what policy is droppingnot You.com

You.com

  • Grounding LLM chatbots with live web datanot Cilium
  • Building AI research agentsnot Cilium
  • Adding cited web answers to productsnot Cilium
  • Financial research automationnot Cilium

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cilium

  • Requires a recent Linux kernel, which rules out older distributions and some managed environments
  • eBPF is genuinely hard to debug when it misbehaves, and the skill is rare on most teams
  • Broad scope — CNI, policy, mesh, observability — means the learning curve covers several domains at once

You.com

  • Pricing tiers beyond the pay-as-you-go table are not published and require contacting sales for volume discounts.
  • Finance Research API is priced significantly higher than the other endpoints, at $110 per 1,000 calls.
  • No self-serve dashboard details are published for managing enterprise zero-retention settings.

Pricing, plan by plan

Cilium

Free
  • CiliumFree
    • Full functionality
    • No usage limits
    • Community support

You.com

Free
  • FreeFree
    • 100 Web Search API queries/day
    • $100 free credit
  • Pay-as-you-go$undefined/mo
    • Web Search API $5 per 1,000 calls
    • Contents API $1 per 1,000 pages
    • Answer API $5 per 1,000 calls

Which should you pick?

Choose Cilium if

  • You need ebpf datapath.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want identity-based policy.
Cilium review

Choose You.com if

  • You need web search api.
  • You want to start without paying.
  • You work on web, api.
  • You also want contents api.
You.com review

Questions people ask

Is Cilium or You.com better?
Neither clearly leads. Cilium starts at Free and You.com at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or You.com?
Cilium starts at Free and You.com at Free.
Does Cilium or You.com run on more platforms?
Cilium runs on Kubernetes, Linux. You.com runs on web, api.
Can I use Cilium for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cilium best used for?
Cilium is most often used for kubernetes networking at a scale where iptables-based cni performance degrades, network policy expressed on workload identity rather than fragile ip rules, seeing which services actually talk to each other, and what policy is dropping. Of those, kubernetes networking at a scale where iptables-based cni performance degrades and network policy expressed on workload identity rather than fragile ip rules are not what You.com is typically brought in for.
What can Cilium do that You.com cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. You.com covers Web Search API, Contents API, Answer API, Research API.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

Yes, open source and CNCF-graduated. Isovalent sells an enterprise distribution and support.

You.com: Does You.com offer a free tier?

Yes, the Free plan includes 100 Web Search API queries per day plus $100 in free credit to try the other APIs before paying.

Source
Cilium: What does eBPF change?

It lets Cilium run packet-processing programs inside the kernel instead of relying on iptables rule chains, which behave poorly as the number of services grows.

You.com: How is usage billed on paid plans?

Pay-as-you-go pricing charges per 1,000 calls: $5 for Web Search, $1 for Contents, $5 for Answer, $12 for Research, and $110 for Finance Research.

Source
Cilium: Does Cilium replace a service mesh?

It can cover much of what a mesh does without sidecars, though full mesh feature sets still favour Istio or Linkerd.

You.com: Are there volume discounts?

Yes, You.com offers lower per-call rates as usage scales, plus optional annual commitment plans for deeper discounts and predictable costs.

Source
You.com: Is there a minimum spend to use the APIs?

No, the pay-as-you-go model has no minimums, so developers are billed only for the calls they actually make beyond the free credit.

Source
You.com: What enterprise security options are available?

You.com offers SOC 2 certified infrastructure, zero data retention options, and Data Processing Agreements with custom QPS limits for enterprise customers.

Source
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