Anthropic vs LlamaIndex

Anthropic and LlamaIndex both appear on the Smoower Developer Ecosystem Index.

Anthropic (rank #44) holds a narrow lead over LlamaIndex (rank #80) on the overall Smoower ecosystem score (63 vs 59). The gap of 4 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), LlamaIndex is ahead of Anthropic. On education (docs, guides and learning material for developers), Anthropic is ahead of LlamaIndex. On community (issue response, PR reviews and discussion health), Anthropic is ahead of LlamaIndex. On reach (how visible the ecosystem is beyond its own repos), LlamaIndex is ahead of Anthropic. On momentum (release cadence and how fast the ecosystem moves), LlamaIndex is slightly ahead of Anthropic.

Anthropic carries 609,852 GitHub stars across 99 public repos, with 48 repositories active in the last 90 days and 722 external contributors on record. LlamaIndex shows 101,666 stars across 149 public repos, 45 active in the last 90 days and 264 external contributors. The star gap on its own does not decide the comparison, but Anthropic's footprint is roughly 6.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Anthropic is the stronger read for anyone weighting education. LlamaIndex looks better where code quality is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.