See how much smarter your AI could be by adding tools
We measure what every tool actually adds to an AI agent. We tested web search first: the best tool found about 20% more correct answers than built in search.
Agentic Search Indexi
MethodologyAgentic 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.
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 |  Firecrawl |
82.9 (78.7–86.4) | $37.94 | 2.0s / 5.0s |
| 2 |  Serper |
80.9 (76.6–84.7) | $14.46 | 1.0s / 1.7s |
| 3 |  Tavily |
78.1 (73.4–82.1) | $58.54 | 6.0s / 9.1s |
| 4 |  Parallel Pro |
77.1 (72.2–81.4) | $55.25 | 2.4s / 4.0s |
| 5 |  Exa |
75.9 (71.2–80.1) | $69.70 | 1.9s / 2.7s |
| 6 |  Brave |
75.2 (70.5–79.4) | $125.55 | 0.7s / 1.0s |
| 7 |  Linkup |
72.5 (67.5–77.0) | $76.43 | 2.3s / 4.2s |
| 8 | Parallel Base |
71.8 (66.6–76.5) | $84.12 | 1.8s / 3.5s |
| — | Claude native WebSearch baseline | 69.1 | $30.19 | — |
| 9 |  Perplexity Sonar |
67.2 (61.9–72.0) | $48.69 | 3.7s / 8.0s |
Cost Breakdowni
The fee per call is often less than the token cost of reading what comes back.