OpenAI vs LlamaIndex

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

OpenAI (rank #22) holds a narrow lead over LlamaIndex (rank #80) on the overall Smoower ecosystem score (66 vs 59). The gap of 7 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), LlamaIndex is slightly ahead of OpenAI. On community (issue response, PR reviews and discussion health), OpenAI is clearly ahead of LlamaIndex. On reach (how visible the ecosystem is beyond its own repos), LlamaIndex is slightly ahead of OpenAI. On momentum (release cadence and how fast the ecosystem moves), OpenAI is clearly ahead of LlamaIndex.

OpenAI carries 846,432 GitHub stars across 268 public repos, with 49 repositories active in the last 90 days and 426 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 OpenAI's footprint is roughly 8.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

OpenAI is the stronger read for anyone weighting community. 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.