Langfuse vs Zed
Open-source LLM engineering platform — observability, prompts, evals
vs. High-performance code editor, built in Rust, with AI + collaboration
Pricing tiers
Langfuse
Hobby (Cloud Free)
Free. 50k units/month included. 30 days data access. 2 users. Community support.
Free
Self-Hosted (OSS)
MIT-licensed. Docker Compose or Kubernetes deployment. Unlimited.
$0 base (usage-based)
Core
$29/month. 100k units included ($8 per 100k overage). 90 days retention. Unlimited users. In-app support.
$29/mo
Pro
$199/month. 100k units included + same overage. 3 YEARS retention. Unlimited annotation queues. High rate limits.
$199/mo
Teams Add-on
+$300/month. Adds Enterprise SSO + fine-grained RBAC + dedicated Slack support to Pro.
$300/mo
Enterprise
$2,499/month. Everything + custom rate limits, uptime SLA, dedicated support engineer. Yearly options.
$2499/mo
Zed
Free
$0. Full editor, extensions, collaboration. AI assistant with BYO API key or limited free tier.
Free
Zed Pro (trial)
$0 limited trial. Zed-hosted AI with Claude/GPT, 150 interactions/mo on Sonnet-tier models.
$0 base (usage-based)
BYO API Key
$0 for Zed. Full AI assistant with your own Claude / GPT / Gemini / Ollama keys — passthrough cost only.
$0 base (usage-based)
Zed Pro
$10/user/mo. 500 Claude Sonnet interactions + unlimited edit-predictions, priority routing.
$10/mo
Zed Business
$20/user/mo. 1,000+ Claude Sonnet interactions, org-level billing, priority support.
$20/mo
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on Zed.
| Metric | Langfuse | Zed |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Langfuse · 16 features
- Annotation Queues — Human reviewers rate traces. Unlimited on Pro+.
- Dashboards — Aggregate metrics, cost, quality across projects.
- Datasets — Curate test sets from production traces. Run experiments.
- EU Cloud Region — GDPR-compliant hosting in EU.
- Evaluations — LLM-as-judge, manual scores, custom model-graded evaluators.
- LLM Cost Tracking — Automatic cost calculation per provider/model.
- OpenTelemetry Native — OTel SDK → Langfuse endpoint works out of box.
- Playground — Test prompts + models + variables live.
- Prompt Management — Version, tag, label prompts. Reference from code by label.
- Public API — Full REST API for ingest, query, prompt management.
- Python @observe decorator — One-line decorator to trace any function.
- Self-Hosting — Docker Compose + k8s Helm chart.
- Sessions — Group related traces (conversations, agent runs).
- Tracing — Capture every LLM call, tool call, nested span with inputs/outputs/cost.
- Users Tracking — Segment traces by user ID, track per-user cost.
- Webhooks — Subscribe to trace completion events.
Zed · 20 features
- Agent Panel — Multi-step AI tasks with tool use.
- AI Assistant — Inline edits + agent panel.
- Channels (Multiplayer) — Real-time shared editing.
- Editor — Core Rust-based editor.
- Edit Prediction (Zeta) — Next-edit prediction model.
- Extensions (WASM) — WASM-based extension system.
- GitHub Copilot Support — Works alongside Copilot subscription.
- Git Integration — Diff view, branches, blame.
- Integrated Terminal — Built-in shell.
- LSP Support — Works with all LSP language servers.
- MCP Support — Connect to any MCP server.
- Multibuffer — Edit multiple files in one view.
- Remote Dev (SSH) — Edit remote filesystems natively.
- Screen Share — Share editor view live.
- Sub-16ms Latency — GPU-accelerated rendering.
- Tasks — Configurable build/test/run tasks.
- Themes — Built-in + community themes.
- Tree-sitter Syntax — Incremental parsing for instant highlighting.
- Vim Mode — First-class Vim/Helix bindings.
- Voice Channels — Talk while pair programming.
Developer interfaces
| Kind | Langfuse | Zed |
|---|---|---|
| CLI | — | zed CLI (shell integration) |
| SDK | langfuse-js, langfuse-python | — |
| REST | Langfuse REST API | — |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | Command Palette (cmd+shift+p), Multiplayer / Channels, Remote Development (SSH), Zed AI Assistant, Zed Editor, Zed Extensions |
Staxly is an independent catalog of developer platforms. Some links to Langfuse and Zed may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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