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Head to head · 2026

Cosine vs Lightrun

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Cosine

Genie, trained on how senior engineers actually solve tickets

4.1$20/mo

Visit Cosine (opens Cosine in a new tab)

Lightrun

AI SRE platform that gives agents live runtime context from production

4.1Free

Visit Lightrun (opens Lightrun in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Lightrun does not list a price

  • Free plan

    Lightrun

    Only Lightrun has one

  • Higher rating

    Tie

    4.1 against 4.1

  • Same job?

    Yes

    Both are Coding tools

Side by side

Compared onCosineLightrun
Our rating4.14.1
Starts at$20/moFree
Free planNoYesBetter
CategoryCodingCoding
PlansFrom $20/moFree
Key features
  • Genie agent trained on real engineering problem-solving data
  • Autonomous ticket-to-pull-request resolution
  • Root-cause investigation before proposing fixes
  • UK-based, enterprise-oriented
  • No free tier
  • 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
Pros
  • Training approach targets realistic debugging reasoning, not just code patterns
  • Focused specifically on turning tickets into working fixes
  • Investigates root causes rather than guessing at surface fixes
  • Removes the redeploy-with-more-logging incident loop
  • Gives agents the production state they otherwise lack
  • Root cause claims come with runtime evidence
Cons
  • No free tier to test before committing
  • Narrower focus than general-purpose coding assistants
  • Less suited to greenfield feature development from scratch
  • Production instrumentation needs overhead and redaction review
  • Change-control environments require approval before capture
CompanyCosine, founded 2022Lightrun, founded 2019

Prices come from each vendor's pricing page, last checked 20260813. Check the vendor before you buy.

FAQ

Questions people ask

Is Cosine better than Lightrun?

In our reviews Cosine scores 4.1 and Lightrun scores 4.1. The better pick depends on the job. Cosine: Genie, trained on how senior engineers actually solve tickets. Lightrun: AI SRE platform that gives agents live runtime context from production.

Which is cheaper, Cosine or Lightrun?

Cosine: from $20/mo. Lightrun: free.

Do Cosine and Lightrun have free plans?

Only Lightrun has a free plan.

More comparisons

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