Source: https://seerepo.com/compare/backnotprop/plannotator/vs/QuantumNous/new-api
Markdown source: https://seerepo.com/compare/backnotprop/plannotator/vs/QuantumNous/new-api.md
Description: plannotator and new-api share 15 technologies: React, Tailwind CSS, dompurify, marked, sonner, Lucide, Base UI, motion, shiki, Zod, yaml, class-variance-authority, tailwind-merge, CodeMirror, and katex. plannotator is written in TypeScript and new-api in Go.

# plannotator vs new-api

plannotator and new-api share 15 technologies: React, Tailwind CSS, dompurify, marked, sonner, Lucide, Base UI, motion, shiki, Zod, yaml, class-variance-authority, tailwind-merge, CodeMirror, and katex. plannotator is written in TypeScript and new-api in Go.

- [backnotprop/plannotator](https://seerepo.com/r/backnotprop/plannotator): The workspace to stay in the loop and on top of agents - shape, decide, plan, annotate, review code, share with team, and send all feedback to agents with one click. 
- [QuantumNous/new-api](https://seerepo.com/r/QuantumNous/new-api): Open-source AI gateway. Self-hosted LLM gateway with OpenAI-, Claude- and Gemini-compatible APIs, model routing, access control, usage tracking and cost accounting.

## What they share and what sets them apart

- In common: React, Tailwind CSS, dompurify, marked, sonner, Lucide, Base UI, motion, shiki, Zod, yaml, class-variance-authority, tailwind-merge, CodeMirror, katex
- Only in plannotator: Vite, Anthropic, MCP, @opencode-ai/plugin, @earendil-works/pi-tui, Pi, @viz-js/viz, Mermaid, @agentclientprotocol/sdk, @opencode-ai/sdk, uqr, dockview-react, Drizzle, @joplin/turndown-plugin-gfm, parse5, turndown, perfect-freehand, TanStack
- Only in new-api: Gin, pgx, Redis, github.com/samber/hot, ClickHouse, MySQL, Postgres, github.com/glebarez/go-sqlite, github.com/glebarez/sqlite, Stripe, github.com/MoeForge/moejs, github.com/gin-contrib/static, Electron, tanstack, gorm.io/gorm, gorm.io/driver/clickhouse, github.com/go-webauthn/webauthn, github.com/casbin/casbin/v2, github.com/golang-jwt/jwt/v5, github.com/aws/aws-sdk-go-v2/credentials, github.com/Azure/go-ntlmssp, github.com/coreos/go-oidc/v3, github.com/pquerna/otp, golang.org/x/oauth2, openai-go, relaykit, tokenkit, github.com/aws/aws-sdk-go-v2/service/bedrockruntime, github.com/tiktoken-go/tokenizer, golang.org/x/image, github.com/abema/go-mp4, github.com/go-audio/aiff, github.com/go-audio/wav, github.com/jfreymuth/oggvorbis, github.com/ledongthuc/pdf, github.com/mewkiz/flac, github.com/tcolgate/mp3, github.com/yapingcat/gomedia, github.com/go-playground/validator/v10, github.com/aws/aws-sdk-go-v2, github.com/grafana/pyroscope-go, Prometheus, React Hook Form, @tanstack/react-table, visactor, xyflow, react-day-picker, @lezer/highlight, yace, auto-skeleton-react, cmdk, embla-carousel-react, input-otp, react-resizable-panels, react-top-loading-bar, recharts, use-stick-to-bottom, vaul, hugeicons, @lobehub/icons, react-icons, ai, tokenlens, stream-markdown-parser, qrcode.react, @hookform/resolvers

## Side by side

| | plannotator | new-api |
|---|---|---|
| Size | 1,355,493 lines written, 2,485 code files | 639,527 lines written, 2,070 code files |
| Who writes it | 20.8% of its commits signed by AI. With Claude Code, Devin, GitHub Copilot, and Codex | 0.7% of its commits signed by AI. With Claude Code, CodeRabbit, Codex, Jules, and Cursor |
| Activity | Last push November 13, 2026, 5,551 commits, 10,410 stars | Last push November 13, 2026, 5,444 commits, 51,856 stars |
| Tests | 2,651 test files. 65.3% of its code files have a test that imports them | 571 test files. 41.4% 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, plannotator or new-api?

plannotator, with 1,355,493 lines written; new-api has 639,527.

The proof: [backnotprop/plannotator's code at commit 6cd0324](https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5)

### Which has more GitHub stars, plannotator or new-api?

new-api, with 51,856 stars; plannotator has 10,410.

The proof: [QuantumNous/new-api on GitHub](https://github.com/QuantumNous/new-api)

### Which has more tests, plannotator or new-api?

plannotator, with 2,651 test files; new-api has 571.

The proof: [backnotprop/plannotator's code at commit 6cd0324](https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5)

### Which was updated more recently, plannotator or new-api?

Both got their last push on November 13, 2026.

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

### Which has more commits signed by AI, plannotator or new-api?

plannotator: an AI signed 20.8% of its commits, with Claude Code, Devin, GitHub Copilot, and Codex; in new-api, 0.7%.

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

## Sources

- backnotprop/plannotator: Read on November 13, 2026, at commit 6cd0324 (https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5)
- QuantumNous/new-api: Read on November 13, 2026, at commit b20e056 (https://github.com/QuantumNous/new-api/tree/b20e0566b235716383da42450c6c536689de9b43)

## 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.