Which platform for which job
No platform here won every dimension, and the one that came first overall is the wrong choice for at least two of the jobs below. These pages start from the problem rather than from the ranking.
Why the overall ranking is not the answer
Dify retrieved the most answers, so it heads the table. But FastGPT preserved figures far more accurately, AnythingLLM runs in a fraction of the memory, and RAGFlow is the only one with a licence permitting resale. A single ordering cannot carry that, and pretending otherwise would make this site less useful, not more.
Which platform can be driven entirely from scripts?
fastgpt — FastGPT. Every step from first boot to retrieval is reachable over HTTP with no browser, which is not true of the rest — one platform cannot be automated at all.
Which platform is best for searching internal documentation?
dify — Dify. It ingested every document in the corpus and retrieved the correct passage for 66% of the questions — the highest of anything measured — and it did the whole corpus in eleven minutes.
Which platform preserves figures in financial and contract documents?
fastgpt — FastGPT retained 97% of the exact figures planted in the corpus, the highest of anything measured — but it is also the platform most likely to fail on a large filing, so the answer depends on document size as much as document type.
Which platform runs on a small VPS?
anythingllm — AnythingLLM holds 394 MB at peak and runs one container, but it failed to ingest five of eleven documents. FastGPT is the lightest platform that finished most of the corpus, at 3.2 GB.
Every recommendation states where it stops
Each page ends with the conditions under which its own recommendation no longer holds. That section is required rather than optional: advice without a boundary eventually gets applied where it does not apply, and the reader who needs the exception is exactly the one a comparison site owes it to.