CircleCIAutonomous validation for the AI era
vs
HarnessAI Platform for the Autonomous SDLC
Comparison · CI/CD · weekly run Nov 3
CircleCI vs Harness
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
CircleCI is the stronger AI pick in CI/CD: it has a visibility score of 36.9 versus 12.3 for Harness, and ranks ahead in 74% of the answers that name both.
Choose CircleCI if…
- You want the brand AI engines rank higher (36.9 vs 12.3)
- You need a self-hosted or on-premises option
- You need FedRAMP Tailored (LI-SaaS) coverage
- Usage-based pricing suits your budget better than flat tiers
Choose Harness if…
- AI answers describe it more positively (52% vs 43% positive)
- You need SOC 1 Type II or ISO 27001 or ISO 27017 or ISO 27018 or FedRAMP 20x Class A or GDPR coverage
- You prefer a larger, established vendor (1,001–5,000 employees)
- Flat tiers pricing suits your budget better than usage-based
AI visibility side by side
Latest weekly run · Nov 3
| Metric | CircleCI | Harness |
|---|---|---|
| Visibility score | 36.9% | 12.3% |
| Change vs last week | New | New |
| Rank in CI/CD | #4 | #11 |
| Share of voice | 9% | 3.7% |
| Mentions this run | 54 | 23 |
| Positive in AI answers | 43% | 52% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
CircleCI 0pp · Harness 0pp over 0 weekly runs.
Engine by engine
CircleCI leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
CircleCIHarness
Head to head in AI answers
19 engine answers name both brands
14CircleCI ranked higher
5Harness ranked higher
| Prompt | Engine | CircleCI | Harness |
|---|---|---|---|
| What is a CI/CD tool and when does a company need one? | Perplexity | #5 | #7 |
| How do I choose a CI/CD tool for a mid-market team? | AI Mode | #6 | #8 |
| How do I choose a CI/CD tool for a mid-market team? | Perplexity | #10 | #13 |
| What features matter most in a CI/CD tool? | ChatGPT | #10 | #13 |
| What are the best CI/CD tools in 2026? | ChatGPT | #4 | #5 |
| What are the best CI/CD tools in 2026? | Perplexity | #5 | #9 |
| Top CI/CD tool options for B2B SaaS companies | ChatGPT | #3 | #5 |
| Top CI/CD tool options for B2B SaaS companies | Perplexity | #3 | #5 |
| Best CI/CD tool for enterprise | ChatGPT | #8 | #3 |
| Compare the leading CI/CD platforms | ChatGPT | #5 | #7 |
| Compare the leading CI/CD platforms | Perplexity | #4 | #6 |
| Alternatives to the most popular CI/CD tool | ChatGPT | #5 | #10 |
Features, pricing & fit
| Dimension | CircleCI | Harness |
|---|---|---|
| Pricing model | Usage-based | Flat tiers |
| Entry price | Free; paid from $15 / mo | Contact sales |
| Free plan | Yes | Yes |
| Deployment | Cloud-hosted service with CircleCI compute and self-hosted runners, or self-managed on the customer's own infrastructure | Harness platform with a Harness Delegate that runs inside the customer's VPC or cluster; a self-managed platform is available as an Enterprise add-on. |
| Integrations | — | 40+ |
| Compliance | FedRAMP Tailored (LI-SaaS), SOC 2 Type II | SOC 1 Type II, SOC 2 Type II, ISO 27001, ISO 27017, ISO 27018, FedRAMP 20x Class A, GDPR |
| Support | Community support forum (all plans), Ticket-based global support (Performance and Scale plans), 8x5 and 24x7 SLA options as add-ons | Standard support with a dedicated customer success manager (Essentials), Premier support and dedicated account manager (Enterprise), Community support (Free plan), Professional Services as an add-on |
| Founded | 2011 | 2017 |
| Headquarters | San Francisco, California, United States | San Francisco, California, United States |
| Employees | 201–500 | 1,001–5,000 |
| Funding | Series F | Series E · $570M raised |
| Best for | Engineering teams that want fast, scalable CI/CD across cloud and self-hosted infrastructure, from startups to enterprises | Enterprise engineering and platform teams that want CI, CD, security and cost controls on one governed platform. |
Plans side by side
Harness
Free Plan$0not stated
Essentials PlanCustomnot stated
Enterprise PlanCustomnot stated
Pros and cons
Themes from the AI answers that mention each brand
CircleCI
- fast builds and parallelism
- flexible cloud and hybrid CI/CD platform
- free tier with no credit card required
- transparent usage-based credit pricing
- rich integrations and insights
- no standard annual discount
- credit-based pricing less simple than flat rates
Harness
- Strong enterprise release governance
- Deployment safety and automated rollback
- Deployment verification and progressive delivery
- AI-driven pipeline optimization
- Analyst recognition as a strong continuous delivery vendor
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “CircleCI vs Harness”, https://slateindex.ai/compare/circleci-vs-harness, data of Nov 3, 2026. Licence: CC BY 4.0.