Source: https://seerepo.com/compare/grafana/loki/vs/moby/buildkit
Markdown source: https://seerepo.com/compare/grafana/loki/vs/moby/buildkit.md
Description: loki and buildkit share 13 technologies: net/http, s3, etcd, github.com/Azure/azure-sdk-for-go/sdk/storage/azblob, github.com/aws/aws-sdk-go-v2/credentials, github.com/Azure/azure-sdk-for-go/sdk/azidentity, OpenTelemetry, go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc, github.com/sirupsen/logrus, github.com/aws/aws-sdk-go-v2, github.com/aws/aws-sdk-go-v2/config, github.com/Azure/azure-sdk-for-go/sdk/azcore, and go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp. Both are written in Go.

# loki vs buildkit

loki and buildkit share 13 technologies: net/http, s3, etcd, github.com/Azure/azure-sdk-for-go/sdk/storage/azblob, github.com/aws/aws-sdk-go-v2/credentials, github.com/Azure/azure-sdk-for-go/sdk/azidentity, OpenTelemetry, go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc, github.com/sirupsen/logrus, github.com/aws/aws-sdk-go-v2, github.com/aws/aws-sdk-go-v2/config, github.com/Azure/azure-sdk-for-go/sdk/azcore, and go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp. Both are written in Go.

- [grafana/loki](https://seerepo.com/r/grafana/loki): Like Prometheus, but for logs.
- [moby/buildkit](https://seerepo.com/r/moby/buildkit): concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit

## What they share and what sets them apart

- In common: net/http, s3, etcd, github.com/Azure/azure-sdk-for-go/sdk/storage/azblob, github.com/aws/aws-sdk-go-v2/credentials, github.com/Azure/azure-sdk-for-go/sdk/azidentity, OpenTelemetry, go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc, github.com/sirupsen/logrus, github.com/aws/aws-sdk-go-v2, github.com/aws/aws-sdk-go-v2/config, github.com/Azure/azure-sdk-for-go/sdk/azcore, go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp
- Only in loki: Gorilla, go-redis, github.com/twmb/franz-go, HashiCorp, github.com/twmb/franz-go/pkg/kadm, Redis, zombiezen.com/go/sqlite, github.com/aliyun/aliyun-oss-go-sdk, github.com/ncw/swift/v2, github.com/parquet-go/parquet-go, MinIO, AWS S3, github.com/schollz/progressbar/v3, github.com/aliyun/credentials-go, github.com/prometheus/sigv4, Logstash, github.com/go-kit/log, Prometheus, github.com/prometheus/prometheus, github.com/prometheus/common, go.opentelemetry.io/otel/trace, go.opentelemetry.io/otel/sdk, github.com/moby/moby/v2, github.com/go-logfmt/logfmt, github.com/docker/go-plugins-helpers, github.com/prometheus/client_model, github.com/prometheus/client_golang/exp, github.com/uber/jaeger-client-go
- Only in buildkit: github.com/aws/aws-sdk-go-v2/feature/s3/transfermanager, github.com/hashicorp/golang-lru/v2, github.com/containerd/console, github.com/morikuni/aec, github.com/tonistiigi/vt100, github.com/tonistiigi/go-csvvalue, containerd, github.com/containerd/stargz-snapshotter/estargz, github.com/containerd/accelerated-container-image, github.com/containerd/nydus-snapshotter, github.com/containerd/go-runc, github.com/coreos/go-systemd/v22, github.com/Microsoft/hcsshim, github.com/containerd/fuse-overlayfs-snapshotter/v2, github.com/containerd/stargz-snapshotter, github.com/containernetworking/plugins, github.com/prometheus/client_golang, go.opentelemetry.io/otel/exporters/jaeger, go.opentelemetry.io/otel/exporters/prometheus

## Side by side

| | loki | buildkit |
|---|---|---|
| Size | 673,536 lines written, 1,440 code files | 223,276 lines written, 672 code files |
| Who writes it | 0.9% of its commits signed by AI. With Claude Code, Cursor, and GitHub Copilot | 0.2% of its commits signed by AI. With Codex, Claude Code, GitHub Copilot, and Cursor |
| Activity | Last push November 8, 2026, 13,975 commits, 29,135 stars | Last push November 12, 2026, 6,140 commits, 10,418 stars |
| Tests | 1,079 test files. 79.9% of its code files have a test that imports them | 361 test files. 53.7% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, loki or buildkit?

loki, with 673,536 lines written; buildkit has 223,276.

The proof: [grafana/loki's code at commit af18c16](https://github.com/grafana/loki/tree/af18c16d2ab72192141ee1ea977189ea4527a636)

### Which has more GitHub stars, loki or buildkit?

loki, with 29,135 stars; buildkit has 10,418.

The proof: [grafana/loki on GitHub](https://github.com/grafana/loki)

### Which has more tests, loki or buildkit?

loki, with 1,079 test files; buildkit has 361.

The proof: [grafana/loki's code at commit af18c16](https://github.com/grafana/loki/tree/af18c16d2ab72192141ee1ea977189ea4527a636)

### Which was updated more recently, loki or buildkit?

buildkit: its last push was on November 12, 2026, and loki's on November 8, 2026.

The proof: [moby/buildkit's commits on GitHub](https://github.com/moby/buildkit/commits)

### Which has more commits signed by AI, loki or buildkit?

loki: an AI signed 0.9% of its commits, with Claude Code, Cursor, and GitHub Copilot; in buildkit, 0.2%.

The proof: [the commits each tool signed in grafana/loki](https://seerepo.com/r/grafana/loki/ai)

## Sources

- grafana/loki: Read on November 8, 2026, at commit af18c16 (https://github.com/grafana/loki/tree/af18c16d2ab72192141ee1ea977189ea4527a636)
- moby/buildkit: Read on November 13, 2026, at commit d667ec0 (https://github.com/moby/buildkit/tree/d667ec05a024e65a79bd07c8c241adddaf30f550)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.