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Lightrun

AI SRE platform that gives agents live runtime context from production

4.1 Coding
4.1 Very good 4.1
Removes the redeploy-with-more-logging incident loop Production instrumentation needs overhead and redaction review
Reviewed by Challenging Voice Editorial · Updated Aug 2026 How we rate
PricingFree
Free planYes
CompanyLightrun
PlatformsWeb
CategoryCoding
Founded2019
Last reviewedAug 2026
Ask AI about Lightrun ChatGPT Claude Perplexity

Overview

Lightrun’s argument is that coding agents reason about source code while incidents happen in running processes, so an agent asked to fix production is working blind. The platform captures live runtime state — variables, call paths, execution flow — from services under load and makes it queryable by both engineers and agents.

For incident response, that shortens the loop between an alert and a verified root cause, because the investigating engineer no longer redeploys with extra logging to reproduce the failure. The platform handles alert triage and proposes root cause with the runtime evidence attached.

Instrumenting production carries real risk, so evaluation should cover performance overhead, data redaction and which environments are in scope. Teams under change-control regimes need to establish how runtime capture is approved before rollout.

Key features

  • Live runtime state capture from running production services
  • Alert triage with root cause analysis attached to evidence
  • Runtime context exposed to coding agents
  • Investigation without redeploying instrumented builds
  • Integration across the software delivery lifecycle
  • Query interface for engineers and agents alike

Screenshots & demo

Demo video

Screenshots

Lightrun screenshot 1

Pricing

Lightrun offers a free plan, with paid upgrades for higher limits and more features.

  • Pricing modelPaid
  • Starting priceFree
  • Free planYes
Visit Lightrun

Pricing is provided as a guide. Check the official site for the latest plans.

Is Lightrun expensive?

Lightrun has no advertised paid tier. Among the 98 priced tools we list in Coding, the median entry price is $20 a month.

64% of Coding tools in the directory offer a free tier, and this is one of them.

Compared against every priced listing in Coding, recalculated as the catalogue changes. Method and the full market breakdown are in our AI tool pricing study.

Pros & cons

Pros

  • Removes the redeploy-with-more-logging incident loop
  • Gives agents the production state they otherwise lack
  • Root cause claims come with runtime evidence

Cons

  • Production instrumentation needs overhead and redaction review
  • Change-control environments require approval before capture

How it compares

ToolRatingFreeFromBest known for
Lightrun (this tool)4.1YesFreeLive runtime state capture from running production services
Cosine4.1No$20/moGenie agent trained on real engineering problem-solving data
Katalon3.8No—Six named AI agents spanning the full testing lifecycle
host4.ai3.9No$13.75/moAI builder that deploys from a plain-English description

Alternatives to Lightrun

4 tools matched to Lightrun on what they do, their category and their price.

Katalon

3.8

Six named AI agents span the testing lifecycle – from a Requirement Analyzer that flags ambiguities to a Root Cause Analyzer that recommends fixes, on "One Agentic Platform."

Free Trial Coding

Owlity

4.0

Click through the app and it writes the test, then runs the suite on every commit.

Contact for Pricing Coding

Frequently asked questions

What is Lightrun?
Lightrun's argument is that coding agents reason about source code while incidents happen in running processes, so an agent asked to fix production is working blind.
Is Lightrun free?
Yes, Lightrun offers a free plan. Paid plans unlock more features and higher usage limits.
What are the best Lightrun alternatives?
The closest matches in the directory are Cosine, Katalon, and host4.ai, compared side by side above.

Reviews

4.1 Editorial rating No reviews yet

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