Source: https://seerepo.com/compare/hydra-db/hydradb/vs/sgl-project/sglang
Markdown source: https://seerepo.com/compare/hydra-db/hydradb/vs/sgl-project/sglang.md
Description: hydradb and sglang share 8 technologies: axum, axum-server, Tokio, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, and opentelemetry-otlp. hydradb is written in Rust and sglang in Python.

# hydradb vs sglang

hydradb and sglang share 8 technologies: axum, axum-server, Tokio, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, and opentelemetry-otlp. hydradb is written in Rust and sglang in Python.

- [hydra-db/hydradb](https://seerepo.com/r/hydra-db/hydradb): HydraDB - fast graph database on object storage
- [sgl-project/sglang](https://seerepo.com/r/sgl-project/sglang): SGLang is a high-performance serving framework for large language models and multimodal models.

## What they share and what sets them apart

- In common: axum, axum-server, Tokio, tracing, tracing-subscriber, OpenTelemetry, tracing-opentelemetry, opentelemetry-otlp
- Only in hydradb: foyer, opentelemetry-semantic-conventions, opentelemetry-appender-tracing
- Only in sglang: FastAPI, tower, uvicorn, pyzmq, blobfile, Redis, OpenAI, Anthropic, AIOHTTP, wasmtime, indicatif, jsonwebtoken, apache-tvm-ffi, cuda-python, flashinfer-python, humming-kernels, NVIDIA, openai-harmony, quack-kernels, torch-c-dlpack-ext, torch, transformers, einops, torchvision, compressed-tensors, gguf, tokenizers, xgrammar, ModelScope, tch, torchaudio, hf-hub, partial-json-parser, datasets, mistral-common, tiktoken, llguidance, rmcp, sentencepiece, timm, pillow, minijinja, av, torchcodec, image, validator, msgspec, Pydantic, psutil, prometheus-client, k8s-openapi, kube, metrics, tracing-appender, metrics-exporter-prometheus, tracing-log

## Side by side

| | hydradb | sglang |
|---|---|---|
| Size | 127,544 lines written, 141 code files | 3,312,331 lines written, 4,627 code files |
| Who writes it | 29% of its commits signed by AI. With Claude Code, Cursor, and Codex | 8.7% of its commits signed by AI. With Claude Code, Gemini CLI, Cursor, GitHub Copilot, Devin, Codex, CodeRabbit, and OpenHands |
| Activity | Last push November 10, 2026, 62 commits, 13,078 stars | Last push November 6, 2026, 21,830 commits, 38,542 stars |
| Tests | 0 test files | 4,212 test files. 59.6% 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, hydradb or sglang?

sglang, with 3,312,331 lines written; hydradb has 127,544.

The proof: [sgl-project/sglang's code at commit 0afb736](https://github.com/sgl-project/sglang/tree/0afb736d0aab96e3ab80b4c54a376213a1db67a6)

### Which has more GitHub stars, hydradb or sglang?

sglang, with 38,542 stars; hydradb has 13,078.

The proof: [sgl-project/sglang on GitHub](https://github.com/sgl-project/sglang)

### Which has more tests, hydradb or sglang?

sglang, with 4,212 test files.

The proof: [sgl-project/sglang's code at commit 0afb736](https://github.com/sgl-project/sglang/tree/0afb736d0aab96e3ab80b4c54a376213a1db67a6)

### Which was updated more recently, hydradb or sglang?

hydradb: its last push was on November 10, 2026, and sglang's on November 6, 2026.

The proof: [hydra-db/hydradb's commits on GitHub](https://github.com/hydra-db/hydradb/commits)

### Which has more commits signed by AI, hydradb or sglang?

hydradb: an AI signed 29% of its commits, with Claude Code, Cursor, and Codex; in sglang, 8.7%.

## Sources

- hydra-db/hydradb: Read on November 10, 2026, at commit af63440 (https://github.com/hydra-db/hydradb/tree/af6344037bffb2a354bf32c2b312ba4921a1583f)
- sgl-project/sglang: Read on November 6, 2026, at commit 0afb736 (https://github.com/sgl-project/sglang/tree/0afb736d0aab96e3ab80b4c54a376213a1db67a6)

## 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.