kitio.aiSentry Seer vs Herald
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Sentry Seer starts at $40/mo and Herald starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Root cause analysis
- Automated fix PRs
- AI code review
- Local debugging
- Telemetry context
- Predictive issue detection
- Root cause analysis
- Suggested resolutions
- CLI agent
- Slack and Teams collaboration
- Bring your own model
| Feature | Sentry Seer | Herald |
|---|---|---|
| Best for | Sentry's AI agent that finds root causes and fixes bugs | AI SRE that finds production issues and their root cause early |
| Category | Coding | Coding |
| Pricing model | Paid | Freemium |
| Starting price | $40/mo | See pricing page |
| Free plan | No | Yes |
| Made by | Sentry | Herald |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Both offer: Root cause analysis.
Pricing compared
Sentry Seer starts at $40/mo and Herald starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
1 plan
Seer
$40/mo
- Per active contributor
- Requires a paid Sentry plan
- Autofix and AI code review
4 plans
Hobby
Free
- Herald CLI agent
- Local integrations
- Limited agent requests
Individual
$20/mo billed yearly
- Root cause analysis
- Predictive detection
- Suggested resolutions
Teams
$40/user/mo billed yearly
- Per user
- Cloud agent and integrations
- Slack and Teams collaboration
Enterprise
Contact sales
- Custom deployment
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Sentry Seer
- Uses real production data
- Unlimited use per contributor
- Fixes arrive as PRs
- Requires Sentry
- Add-on cost per contributor
Herald
- Free CLI tier without a card
- Catches issues before alerts fire
- Bring your own model or cloud
- Cloud agent needs the Teams plan
- Per-user pricing for teams
- Recently rebranded from RunLLM
Which one should you choose?
Choose Sentry Seer if you want:
- Uses real production data
- Unlimited use per contributor
- Fixes arrive as PRs
Watch out: requires sentry.
Choose Herald if you want:
- Free CLI tier without a card
- Catches issues before alerts fire
- Bring your own model or cloud
Watch out: cloud agent needs the teams plan.
Sentry Seer vs Herald FAQ
What is the difference between Sentry Seer and Herald?
Sentry Seer: Sentry's AI agent that finds root causes and fixes bugs. Herald: AI SRE that finds production issues and their root cause early. Both are coding tools.
Is Sentry Seer or Herald cheaper?
Sentry Seer starts at $40/mo and Herald starts at See pricing page. Check both pricing pages for current plans.
Do Sentry Seer and Herald have free plans?
Sentry Seer: No. Herald: Yes.
Who makes Sentry Seer?
Sentry Seer is made by Sentry, based in United States.
Who makes Herald?
Herald is made by Herald.
Which should I choose, Sentry Seer or Herald?
Choose Sentry Seer if you value uses real production data and unlimited use per contributor. Choose Herald if you value free cli tier without a card and catches issues before alerts fire.