Cloud · head to head
Cilium vs Rev
Cilium
Cloud
eBPF-based networking, observability and security for Kubernetes
- From
- Free
- Free plan
- Yes
Rev
AI
Human and AI transcription, captions and subtitles priced per minute
- From
- Free
- Free plan
- Yes
The short version
- Each has a real cost: Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments; Rev human transcription at 1.99 US dollars a minute means roughly 120 dollars an hour of audio, so a long-form interview series costs more in transcription than most teams assume before they run the arithmetic.
- They diverge on capability: Cilium covers eBPF datapath, Rev covers Human transcription.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Cilium and Rev actually diverge.
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 Rev
- Human transcription
- AI transcription
- Captions and subtitles
- Legal transcripts
- File analysis
- Clio integration
- Rev API
- Speaker identification
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 Rev
- Network policy expressed on workload identity rather than fragile IP rulesnot Rev
- Seeing which services actually talk to each other, and what policy is droppingnot Rev
Rev
- A law firm that needs a deposition transcript in a court-acceptable page format with a fixed turnaround and a published per-page price it can bill to a matter.not Cilium
- A documentary or podcast producer costing a project in advance, because human transcription at a published per-minute rate makes the transcription line item a known number.not Cilium
- A broadcaster needing compliant human captions rather than machine captions, where accuracy is a regulatory requirement and not a convenience.not Cilium
- A team with high AI volume and occasional high-stakes files, using the subscription for the bulk and paying the discounted human rate only where accuracy matters.not 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
Rev
- Human transcription at 1.99 US dollars a minute means roughly 120 dollars an hour of audio, so a long-form interview series costs more in transcription than most teams assume before they run the arithmetic.
- AI minutes are allocated per seat per month and do not roll over, so bursty workloads, which is how most media production actually behaves, waste allowance in quiet months and run out in busy ones.
- The product direction has moved towards legal and investigative use, so a newsroom or media buyer is choosing a tool whose roadmap priority sits elsewhere.
- Foreign-language subtitles are priced from 6.49 to 15.99 US dollars per minute, an order of magnitude above transcription, which makes multi-language localisation of any volume of video expensive enough to change the plan.
- Human turnaround is stated in hours rather than guaranteed contractually on the published plans, so a hard broadcast or filing deadline needs an agreement beyond the standard terms.
Pricing, plan by plan
Cilium
Free- CiliumFree
- Full functionality
- No usage limits
- Community support
Rev
Free- FreeFree
- 45 AI transcription and caption minutes per month
- Up to 5 files analysed
- No human transcription included
- Essentials$25.49/month
- 5,000 AI minutes per seat per month
- Up to 3 seats
- 10 per cent discount on human transcription, captions and subtitles
- Pro$47.99/month
- 10,000 AI minutes per seat per month
- Up to 5 seats
- 15 per cent discount on human work
- Unlimited$undefined/month
- Unlimited AI minutes
- Up to 500 files analysed at once
- Dedicated account specialist
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.
Choose Rev if
- You need human transcription.
- You want to start without paying.
- You work on Web, iOS, Android, API.
- You also want ai transcription.
Questions people ask
- Is Cilium or Rev better?
- Neither clearly leads. Cilium starts at Free and Rev at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cilium or Rev?
- Cilium starts at Free and Rev at Free.
- Does Cilium or Rev run on more platforms?
- Cilium runs on Kubernetes, Linux. Rev runs on Web, iOS, Android, 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 Rev is typically brought in for.
- What can Cilium do that Rev cannot?
- Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. Rev covers Human transcription, AI transcription, Captions and subtitles, Legal transcripts.
Answered from the vendors’ own pages
Cilium: Is Cilium free?
Yes, open source and CNCF-graduated. Isovalent sells an enterprise distribution and support.
Rev: How much is human transcription?
1.99 US dollars per minute with a stated accuracy target above 99 per cent, typically returned within 12 hours. Subscribers get 10 to 15 per cent off.
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.
Rev: Is there a free tier?
Yes, 45 AI minutes per month and up to 5 files analysed, with no human transcription included.
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.
Rev: Do unused AI minutes roll over?
No. The allowance is per seat per month and resets, which penalises irregular workloads.
Rev: Can it do subtitles in other languages?
Yes, across seventeen languages, priced from 6.49 to 15.99 US dollars per minute, considerably more than transcription.
Rev: Is Rev still a good choice for newsrooms?
It works, but the subscription tiers are now positioned around legal and investigative workflows, so a newsroom should compare it against a tool built specifically for journalism.
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