GitHub Actions vs GitLab CI vs CircleCI: Real CI/CD Cost per 100,000 Build Minutes in 2026

The short answer: at 100,000 Linux build minutes a month for a 10-person team, GitHub Actions and CircleCI land close together — about $622 on GitHub Actions Team and about $582–$732 on CircleCI depending on whether seat-based Performance plans are needed for concurrency — while GitLab CI on Premium costs about $1,190, roughly double, driven by its higher $29-per-user seat price and a smaller included-minutes allowance relative to its overage rate. GitHub and CircleCI's base compute rates are identical on paper: both price a standard Linux runner at $0.006 per minute as of 2026, since CircleCI's credit system (10 credits per minute at $0.0006 per credit) resolves to exactly GitHub's post-January-2026 rate. The three platforms are not running equivalent hardware at that shared rate, and switching to a larger compute class or macOS changes the comparison sharply: GitHub's macOS runners cost 10 times its Linux rate, and larger runners don't draw from any included-minutes allowance at all.

100,000 minutes does not mean equal hardware across all three

GitHub's default hosted Linux runner is a 2-core machine; its larger runners (4-core and up) are a separately priced, separately allocated resource that does not consume the plan's included minutes. CircleCI's credit system scales by resource class: a Medium Linux machine burns 10 credits a minute, but larger resource classes burn credits proportionally faster for more CPU and RAM, GPU access, or ARM architecture. GitLab's shared runners apply an OS-class multiplier on top of its flat per-minute rate. "100,000 build minutes" is therefore only a fair comparison when the underlying machine size is held constant — this article uses each vendor's standard Linux 2-core-equivalent class as the baseline and treats a larger class as a separate sensitivity scenario.

What each vendor actually bills

GitHub Actions (OFFICIAL, github.com/pricing and GitHub's billing documentation; rate cut effective January 1, 2026). Linux 2-core: $0.006 per minute (cut from $0.008, a 25% reduction). Windows: roughly 2x Linux (~$0.012/min). macOS: 10x Linux (~$0.062/min), down from $0.08 before the January cut but still the most expensive class by a wide margin. Included private-repo minutes: 2,000 on Free, 3,000 on Pro and Team (at $4/user/month), 50,000 on Enterprise Cloud ($21/user/month) — minutes are billed as Linux-equivalent, so Windows and macOS jobs consume the included pool at their multiplier (a 10-minute macOS job consumes 100 minutes of allowance). Larger hosted runners (4-core and above) do not draw from the included-minutes pool at all and bill at their own per-minute rate from the first minute, roughly $0.008–$0.012/min on Linux depending on architecture. Public repositories run free. Artifact storage beyond the free allowance bills at $0.008/GB/day.

GitLab CI/CD (OFFICIAL, about.gitlab.com/pricing). Free tier: 400 compute minutes/month on SaaS shared runners — tight for any serious private-repo pipeline. Premium: $29/user/month (annual billing), bundling 10,000 CI/CD minutes for the whole namespace; additional minutes bill at about $10 per 1,000 ($0.010/min), with an OS-class multiplier applying to shared-runner minutes the way GitHub's does. Ultimate: adds security testing, compliance and portfolio planning, now custom-priced rather than a flat per-user figure. GitLab's CI is built into the same application as source control and issue tracking, which is a packaging difference from GitHub's and CircleCI's narrower CI focus, not reflected in the per-minute number alone.

CircleCI (OFFICIAL, circleci.com/pricing). Bills in credits, where a Medium Linux resource class consumes 10 credits per minute, and credits cost $0.0006 each — an effective $0.006 per minute, identical to GitHub's current Linux rate. Free plan: roughly 30,000 credits a month (about 3,000 Medium-Linux-equivalent minutes, though one source describes the free allowance differently at around 6,000 credits — confirm the current figure directly). Performance plan: a per-seat fee (reported around $15/seat/month) adding higher concurrency and parallelism, layered on top of credit consumption rather than replacing it. Larger resource classes, GPU instances and ARM runners scale credit consumption 10x to 100x above the Medium Linux baseline, reported as a genuinely steeper multiplier range than GitHub's or GitLab's OS-based multipliers.

Where equal minutes stop meaning equal cost

Larger compute runner, ILLUSTRATIVE sensitivity: switching the same 100,000 minutes to GitHub's 4-core x64 runner (which does not draw from the included-minutes pool) costs about $1,240 ($0.012/min × 100,000, plus the $40 seat fee) — roughly double the 2-core Linux figure, even though the minute count hasn't changed. macOS, ILLUSTRATIVE sensitivity: the same 100,000 minutes on GitHub's macOS runners costs about $6,240 (10x the Linux per-minute rate), and consumes any remaining included-minute allowance ten times faster if mixed with Linux jobs under the same plan. CircleCI's macOS and GPU resource classes are reported to carry a comparably steep or steeper credit multiplier, though CircleCI does not publish as granular a side-by-side rate table as GitHub's documented OS multipliers, and the exact current macOS credit rate should be confirmed directly before budgeting.

Sensitivity

1. Runner class and OS. The single largest lever across all three: a 2x jump moving to a larger Linux runner, and a 10x jump moving to macOS, independent of total minute count.
2. Seat count and plan tier. GitLab's $29/seat Premium plan versus GitHub's $4/seat Team plan is a $250/month gap at 10 seats before any compute is counted.
3. Included-minutes allowance relative to overage rate. GitLab's 10,000 included minutes look generous next to GitHub's 3,000, but its $0.010/min overage (67% higher than GitHub's $0.006) more than offsets that at real volume.
4. Whether higher concurrency requires a paid seat tier on CircleCI. Pay-as-you-go avoids the seat fee entirely for teams that don't need Performance-tier parallelism.

Budgeting traps

• Assuming "100,000 minutes" costs the same regardless of runner class. A 2x to 10x multiplier applies the moment a job uses a larger machine or a different OS.
• Forgetting that GitHub's larger runners don't draw from included minutes. Every minute on a larger runner bills from the first minute, unlike standard Linux minutes.
• Comparing GitLab's 10,000 included minutes to GitHub's 3,000 without checking the overage rate. GitLab's larger allowance is offset by a 67% higher per-minute overage cost.
• Budgeting CircleCI by seat count by default. Pay-as-you-go needs no seat fee for straightforward Linux CI; Performance seats are only required for higher concurrency.
• Mixing macOS and Linux jobs under one included-minutes pool without accounting for the multiplier. A handful of macOS jobs can silently exhaust a month's Linux-sized allowance.

What to ask before you buy

Measure your actual runner-class mix (standard Linux versus larger or macOS runners) before comparing per-minute rates, since the multiplier differences dwarf the roughly $0.004/min gap between GitHub's and GitLab's base Linux rates. Confirm CircleCI's current free-tier credit allowance and macOS/GPU resource-class rates directly, and check whether your required concurrency forces a paid seat tier on CircleCI that a straightforward Linux pipeline on GitHub or GitLab would not need.