# Perplexity came dead last after testing agentic search tools 3,537 times

> Source: <https://agenticresourceradar.com/>
> Published: 2026-07-13 15:53:40+00:00

# Find the right tools for your AI agents

Every tool claims to be the best. See which tools actually are best for your agents, starting with agentic web search.

## Agentic Search Indexi

[Methodology](/methodology)

Agentic Search Index v0.1 · Jul 2026

## Highlights

Accuracy, cost, and speed for every tool, measured the same way.

### Agentic Search Indexi

The overall score: how often each tool finds the right answer.

### Costi

USD per 1,000 successful answers

### Speedi

How long your agents wait for each search.

## Let Your Agent Access This Data

Every number on this page is live over x402: an agent pays 0.035 USDC and gets the data with no account and no API key. A standard subscription based API is coming soon.

[Get data with one prompt →](/agent-access)

## Which search tool is right for your agents?

No tool wins everything: match each tool's strengths to the questions your agents actually ask.

### Correct Answers by Question Typei

From deep research to finding current info, each tool has its strengths.

### Failure Attributioni

Know how each tool tends to fail before your agent depends on it.

## The bottom line

Rankings on the left, real costs on the right.

Every tool's score, cost, and speed in one table.

| # | Service | Index (CI) | Cost / 1k | p50 / p95 |
|---|---|---|---|---|
| 1 |
|

[Serper](/tools/serper-dev)[Tavily](/tools/tavily-com)[Parallel Pro](/tools/parallel-ai)[Exa](/tools/exa-ai)[Brave](/tools/brave-com)[Linkup](/tools/linkup-so)[Parallel Base](/tools/parallel-ai)[Perplexity Sonar](/tools/perplexity-ai)### Cost Breakdowni

The fee per call is often less than the token cost of reading what comes back.