Developers building question-answering systems over enterprise documents, databases, or APIs. The go-to for production RAG pipelines.
Simple single-document Q&A — a direct Claude or GPT API call with the document in context is simpler.
What is LlamaIndex?
LlamaIndex (formerly GPT Index) is the leading framework for connecting LLMs to your proprietary data. Ingest PDFs, databases, APIs, and more — then build chatbots, agents, and search tools that answer questions from your data. Complementary to LangChain with a stronger focus on data ingestion and retrieval.
Key features
Integrations
What people actually pay
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Before you buy LlamaIndex
Vendors don't tell you about their competitors. We do — with verdicts attached when we have them.
What LlamaIndex actually costs
Sticker price isn't the real cost. We add implementation, training, and a probability-weighted lock-in penalty.
When to negotiate LlamaIndex
Vendor sales pressure is non-uniform — quarter-close, year-end, and post-funding-round are your high-leverage windows.
Strong negotiation window. Reps will push for end-of-quarter signature. Don't move first — let them initiate the discount. Target 15-30% off list plus negotiated terms.
Take this to your sales call
8 questions vendor sales teams steer around — generated from LlamaIndex's pricing tier, lock-in profile.
- 1PRICINGLlamaIndex starts on the free tier. What forces an upgrade — specific feature gates, usage caps, or support tier? Give me the realistic monthly bill at small scale.
- 2CONTRACTAuto-renewal: how many days notice is required to terminate, and what happens if we miss the window? Will you commit to a renewal-reminder email at 90 and 60 days?
- 3MIGRATIONData export: what's the complete spec — format, frequency, and what data does the export NOT include? After contract end, how long do we have read-only access?
- 4MIGRATIONImplementation runs 2–5 days for first RAG system. Who from your team is included by default, and who do we add at additional cost? Is a CSM assigned?
- 5FITConnect us with 2-3 reference customers at our company size in your industry — not the case-study list, customers who've been live for 18+ months.
- 6INTEGRATIONLlamaIndex lists 4 integrations including OpenAI, Anthropic, Pinecone. Which of OUR existing tools — bring our list — have you confirmed shipping integration with versus "on roadmap"? Show me the actual status.
- 7VENDORTrack record over the last 18 months: any pricing model changes, executive departures, layoffs, M&A activity, or material customer churn we should know about?
- 8VENDORIf you're acquired or shut down, what's the contractual continuity — source-code escrow, data portability, transition period? Show me the actual clause.
What to actually test in the demo
Vendor sales teams script demos to maximize close rate. Here's what they'd rather you not test — derived from LlamaIndex's lock-in profile.
- 1PERFORMANCEBring YOUR data, not their demo data. Insist on running the demo workflow against a sample of your real records, files, or queries. If they refuse — that's a signal.
- 2PERFORMANCELlamaIndex demo will be built around the happy path. Ask: "Show me what happens when [the most common failure mode in our context]" — make them improvise.
- 3EDGE CASESPush the limits live: largest dataset, longest workflow, most users concurrent. Vendors prep demos for medium loads — your real-world usage might 10x what they show.
- 4EDGE CASESMobile and offline behavior: how does LlamaIndex degrade on slow connections, on iPad, in airplane mode? Test in the demo if your team uses these surfaces.
- 5PRICINGFind the upgrade triggers. Which features force a paid plan? Which usage limits trigger overage? Get the rep to demo your team hitting each cap.
- 6INTEGRATIONVendors love their integration logo wall. Test the actual depth: pick the 2-3 (OpenAI, Anthropic-style) integrations you depend on most, and ask the rep to demo a real two-way data sync, not a marketing screenshot.
- 7INTEGRATIONAPI and webhook reality check: rate limits, payload size limits, retry behavior, auth refresh handling. Ask for actual API docs in the demo, not "we'll send those."
- 8MIGRATIONDemo the full data export workflow. Even with low lock-in, you want to see how clean the exit looks before signing.
- 9SUPPORTSubmit a real support ticket DURING the demo. Use the actual support channel customers use, not the rep's email. Time the response. This is your most honest data point about post-sale reality.
- 10SUPPORTAsk to be connected with a customer in the demo who you can email TODAY (not "we'll arrange a reference call next week"). The vendor's confidence in their references is a tell.
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