Source: https://seerepo.com/compare/pipecat-ai/pipecat/vs/vllm-project/vllm
Markdown source: https://seerepo.com/compare/pipecat-ai/pipecat/vs/vllm-project/vllm.md
Description: pipecat and vllm share 6 technologies: FastAPI, OpenAI, AIOHTTP, pillow, markdown, and Pydantic. Both are written in Python.

# pipecat vs vllm

pipecat and vllm share 6 technologies: FastAPI, OpenAI, AIOHTTP, pillow, markdown, and Pydantic. Both are written in Python.

- [pipecat-ai/pipecat](https://seerepo.com/r/pipecat-ai/pipecat): Open Source framework for voice agents, multimodal apps, and realtime AI. Maintained by Daily and the community.
- [vllm-project/vllm](https://seerepo.com/r/vllm-project/vllm): A high-throughput and memory-efficient inference and serving engine for LLMs

## What they share and what sets them apart

- In common: FastAPI, OpenAI, AIOHTTP, pillow, markdown, Pydantic
- Only in pipecat: @pipecat-ai/client-js, onnxruntime, loguru
- Only in vllm: axum, gitdb, pyzmq, Hugging Face, Tokio, starlette, Ray, tower, mkdocs-material, indicatif, NVIDIA, peft, quack-kernels, sentencepiece, torch, transformers, einops, safetensors, triton, torchvision, datasets, torchaudio, MCP, tokenizers, tiktoken, markupsafe, pymdown-extensions, image, jinja2, msgspec, jsonschema, pydantic-core, opentelemetry-api, python-json-logger, tracing, prometheus-client, psutil, tracing-subscriber, OpenTelemetry, opentelemetry-sdk, prometheus-fastapi-instrumentator

## Side by side

| | pipecat | vllm |
|---|---|---|
| Size | 494,582 lines written, 695 code files | 2,375,117 lines written, 3,289 code files |
| Who writes it | 3.7% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and Gemini CLI | 12.8% of its commits signed by AI. With Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, Devin, Mistral Vibe, CodeRabbit, Factory, and Qwen Code |
| Activity | Last push November 7, 2026, 11,319 commits, 17,104 stars | Last push November 4, 2026, 24,593 commits, 96,302 stars |
| Tests | 433 test files. 61% of its code files have a test that imports them | 2,419 test files. 60.2% 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, pipecat or vllm?

vllm, with 2,375,117 lines written; pipecat has 494,582.

The proof: [vllm-project/vllm's code at commit 75f6761](https://github.com/vllm-project/vllm/tree/75f67614971a44050140e3422c1a65fe5004a72b)

### Which has more GitHub stars, pipecat or vllm?

vllm, with 96,302 stars; pipecat has 17,104.

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

### Which has more tests, pipecat or vllm?

vllm, with 2,419 test files; pipecat has 433.

The proof: [vllm-project/vllm's code at commit 75f6761](https://github.com/vllm-project/vllm/tree/75f67614971a44050140e3422c1a65fe5004a72b)

### Which was updated more recently, pipecat or vllm?

pipecat: its last push was on November 7, 2026, and vllm's on November 4, 2026.

The proof: [pipecat-ai/pipecat's commits on GitHub](https://github.com/pipecat-ai/pipecat/commits)

### Which has more commits signed by AI, pipecat or vllm?

vllm: an AI signed 12.8% of its commits, with Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, Devin, Mistral Vibe, CodeRabbit, Factory, and Qwen Code; in pipecat, 3.7%.

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

## Sources

- pipecat-ai/pipecat: Read on November 7, 2026, at commit faee313 (https://github.com/pipecat-ai/pipecat/tree/faee3135dac19c3b172befcc07162950c826dd13)
- vllm-project/vllm: Read on November 4, 2026, at commit 75f6761 (https://github.com/vllm-project/vllm/tree/75f67614971a44050140e3422c1a65fe5004a72b)

## 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.