llm-cost-optimizer vs langfuse
llm-cost-optimizer is a plugin bundle for AI coding tools published by Alireza Rezvani. Marketplaces we read that list it: 1 (Community GitHub marketplaces). langfuse is a plugin bundle for AI coding tools published by langfuse. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-22. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  langfuse | |
|---|---|---|
| Community marketplace alirezarezvani/claude-skills | Listed Version: 2.9.0 Forks (GitHub): 3 959 Stars (GitHub): 28 474 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 1.10.0 Forks (GitHub): 43 Stars (GitHub): 313 Not marked · First seen |
| Claude: knowledge-work-plugins | Not listed | Listed Version: 1.10.0 Forks (GitHub): 43 Stars (GitHub): 313 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.5.2 Forks (GitHub): 43 Stars (GitHub): 313 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | llm-cost-optimizer | langfuse |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 28 474 (better) | 313 (worse) |
| Forks (GitHub) (differs) | 3 959 (better) | 43 (worse) |
| Last release (differs) | Not published | 2026-10-16 |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | 2 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/alirezarezvani/claude-skills | github.com/langfuse/skills |
| Changes in the last 7 days (differs) | 0 | 6 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
llm-cost-optimizer
Cut LLM API spend via model routing, prompt caching, prompt compression, and per-feature cost observability. Use when AI costs are too high, choosing between models, or launching an AI feature without cost architecture. NOT for RAG design or prompt quality (separate skills).
langfuse
Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.
How to run each
llm-cost-optimizer As a Claude Code plugin
/plugin marketplace add alirezarezvani/claude-skills
/plugin install llm-cost-optimizer@claude-code-skillslangfuse As a Claude Code plugin
/plugin install langfuse@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: llm-cost-optimizer · What it can do: langfuse · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.