--- title: "caveman vs korvus" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/juliusbrussee-caveman-vs-postgresml-korvus" tools: ["juliusbrussee-caveman", "postgresml-korvus"] --- # caveman vs korvus *GraphCanon updated Jul 11, 2026* ## Verdict Pick caveman when caveman is primarily JavaScript; korvus is Rust; pick korvus when korvus is primarily Rust; caveman is JavaScript. [caveman](https://caveman.so/) reports 88k GitHub stars, 5.1k forks, and 392 open issues, last pushed Jul 3, 2026. [korvus](https://postgresml.org) has 1.5k stars, 50 forks, and 8 open issues, last pushed Jan 31, 2025. Figures are from public GitHub metadata via [caveman's repository](https://github.com/JuliusBrussee/caveman) and [korvus's repository](https://github.com/postgresml/korvus). | | [caveman](/tools/juliusbrussee-caveman.md) | [korvus](/tools/postgresml-korvus.md) | | --- | --- | --- | | Tagline | Reduce token usage with concise 'caveman'-style prompts. | Korvus is a search SDK that unifies the entire RAG pipeline in a single database query. Built on top of Postgres with bindings for Python, JavaScript, Rust and C. | | Stars | 87,950 | 1,465 | | Forks | 5,052 | 50 | | Open issues | 392 | 8 | | Language | JavaScript | Rust | | Adopt for | The **caveman** tool is designed for developers and AI users who aim to optimize their token usage through the generation of more concise prompts, thereby potentially reducing costs and improving efficiency. However, it犺 | - | | Persona | - | - | | Runtime | - | - | | License | MIT | MIT | | Categories | Developer Tools, LLM Frameworks | Developer Tools, LLM Frameworks, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [caveman](/tools/juliusbrussee-caveman.md) | [korvus](/tools/postgresml-korvus.md) | | --- | --- | --- | | Maintenance | Active (82%) | Dormant (18%) | | Days since push | 7d | 526d | | Open issues (now) | 392 | 8 | | Owner type | User | Organization | | Full report | [trust report](/tools/juliusbrussee-caveman/trust.md) | [trust report](/tools/postgresml-korvus/trust.md) | ## Decision facts: caveman - **Adopt for:** The **caveman** tool is designed for developers and AI users who aim to optimize their token usage through the generation of more concise prompts, thereby potentially reducing costs and improving efficiency. However, it犺 ## Choose when ### Choose caveman if… - caveman is primarily JavaScript; korvus is Rust. - Tags unique to caveman: anthropic, caveman, claude-code, prompt-engineering. - When you need to significantly cut down on token usage in AI interactions, up to 65%, without losing essential information content. ### Choose korvus if… - korvus is primarily Rust; caveman is JavaScript. - Tags unique to korvus: embeddings, javascript, llm, ml. - Also covers Vector Databases. ## When NOT to use caveman - When requiring complex and detailed prompts that necessitate more nuanced expression beyond simple, 'caveman'-style sentences. - For situations where adherence to formal or specific linguistic structures is mandatory for the task's success. ## When NOT to use korvus - Last GitHub push was 527 days ago (dormant maintenance, Jan 31, 2025). Validate activity before betting a new project on korvus. - Developer Tools: A gateway is overkill when you're pinned to a single provider and model. - LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ## Common questions ### What is the difference between caveman and korvus? caveman: Reduce token usage with concise 'caveman'-style prompts.. korvus: Korvus is a search SDK that unifies the entire RAG pipeline in a single database query. Built on top of Postgres with bindings for Python, JavaScript, Rust and C.. See the comparison table for live GitHub stats and shared categories. ### When should I choose caveman over korvus? Choose caveman over korvus when caveman is primarily JavaScript; korvus is Rust; Tags unique to caveman: anthropic, caveman, claude-code, prompt-engineering; When you need to significantly cut down on token usage in AI interactions, up to 65%, without losing essential information content. ### When should I choose korvus over caveman? Choose korvus over caveman when korvus is primarily Rust; caveman is JavaScript; Tags unique to korvus: embeddings, javascript, llm, ml; Also covers Vector Databases. ### When should I avoid caveman? When requiring complex and detailed prompts that necessitate more nuanced expression beyond simple, 'caveman'-style sentences. For situations where adherence to formal or specific linguistic structures is mandatory for the task's success. ### When should I avoid korvus? Last GitHub push was 527 days ago (dormant maintenance, Jan 31, 2025). Validate activity before betting a new project on korvus. Developer Tools: A gateway is overkill when you're pinned to a single provider and model. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ### Is caveman or korvus more popular on GitHub? caveman has more GitHub stars (87,950 vs 1,465). Stars measure visibility, not whether either tool fits your constraints. ### Are caveman and korvus open source? Yes - both are open-source projects on GitHub (caveman: MIT, korvus: MIT). ### Where can I find alternatives to caveman or korvus? GraphCanon lists graph-backed alternatives at [caveman alternatives](/tools/juliusbrussee-caveman/alternatives) and [korvus alternatives](/tools/postgresml-korvus/alternatives) ([caveman markdown twin](/tools/juliusbrussee-caveman/alternatives.md), [korvus markdown twin](/tools/postgresml-korvus/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/juliusbrussee-caveman-vs-postgresml-korvus.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, caveman or korvus? caveman: Active. korvus: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for caveman and korvus? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [caveman trust report](/tools/juliusbrussee-caveman/trust); [korvus trust report](/tools/postgresml-korvus/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=juliusbrussee-caveman`](/api/graphcanon/graph?tool=juliusbrussee-caveman) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_