← RAG & memory services

OpenAI

OpenAI File Search

Hosted retrieval over uploaded files in the Responses API at $2.50 per 1K tool calls; vector store storage costs $0.10 per GB per day after 1 GB free, and the model tokens used to write the answer are billed on top. Listed directly per 1K calls: $2.50 (no monthly plan; pay as you go).

USD per 1K queries

$2.50

storage_gb_day
$0.10
Verified Oct 18, 2026

#2 cheapest of 4 in RAG & memory services

Official pricing ↗

Capabilities, explained

What this API can do, and what each capability means for your project.

Type

rag

Document question-answering (RAG), per-user agent memory, or both.

Generates answers

Yes

Returns a written answer with citations, not only the matching passages.

Data connectors

No

Can pull documents directly from tools like Google Drive, Notion or Slack.

Open source / self-hostable

No

You can run it on your own infrastructure.

Free tier

No

A permanent free plan exists.

Price history

Only one price recorded so far. The chart appears once the price changes.