Exa vs Diffbot: full comparison for 2026
Quick verdict
Exa (4.2/5) edges ahead of Diffbot (3.7/5) overall. Exa is the better choice for RAG and agent developers needing semantic news retrieval. Diffbot is the stronger option for developers collecting news from a fixed list of sites. The right pick depends on your budget, how much history you need and whether you need full text.
Exa vs Diffbot: head-to-head summary
| Criterion | Exa | Diffbot |
|---|---|---|
| Founded | 2021 | 2008 |
| HQ | San Francisco, USA | Menlo Park, California, USA |
| Team size | 51–200 | 11–50 |
| Rating | 4.2 / 5 | 3.7 / 5 |
| Primary differentiator | Search by meaning with page text returned in the same request | Parser-free extraction from any article URL, linked to a Knowledge Graph |
| Pricing model | Pay per request; free monthly credit | Monthly credit plans |
| Entry price | $7 per 1,000 searches | $299/mo |
| Formats & SDKs | REST API, JSON, Python SDK | REST API, JSON, Python SDK |
| Typical uses | AI & LLM apps, Research & academia | AI & LLM apps, Research & academia, Marketing & PR, Financial services |
Exa vs Diffbot: overview
Exa
Exa Labs started in San Francisco in 2021 as Metaphor, founded by Will Bryk and Jeff Wang, and raised an $85 million Series B led by Benchmark in September 2025. It runs its own web index searched by meaning, so a query like "startups cutting cloud costs" can match articles that never use those words. Set the category to news and ask for contents, and one request returns cleaned text you can drop into a prompt. As of 2026 search costs $7 per 1,000 requests with contents for the top 10 results included, and new accounts start with $20 of credit. SDKs cover Python and TypeScript, and an official MCP server plugs it into agent tools. It is a search engine at heart, so expect weaker coverage of small regional outlets and fuzzier publication dates than a dedicated news API gives.
Diffbot
Diffbot, founded by Mike Tung in 2008 and based in Menlo Park, California, has an estimated 30–40 staff. Point its Article API at any news URL and it returns title, author, date and clean text without a site-specific parser, and Crawlbot can follow a list of publishers you choose. Its Knowledge Graph links articles to companies, people and topics, so it can also be queried as a news source. The free plan includes 10,000 credits at five calls a minute, Startup costs $299 a month for 250,000 credits, and each exported Knowledge Graph entity costs 25 credits. It works best when you want to build your own news collection from chosen sites.
Features: Exa vs Diffbot
| Capability | Exa | Diffbot |
|---|---|---|
| Full article text | ✓ | ✓ |
| Historical archive | ✗ | ✓ |
| NLP enrichment | ✗ | ✓ |
| Story/event clustering | ✗ | ✗ |
| Official SDK | ✓ | ✓ |
| Streaming or webhooks | ✗ | ✗ |
| Free access | ✓ | ✓ |
Formats and SDKs: Exa vs Diffbot
| Format / SDK | Exa | Diffbot |
|---|---|---|
| REST API | ✓ | ✓ |
| Python SDK | ✓ | ✓ |
| Node.js SDK | ✓ | N/A |
| Webhooks | N/A | N/A |
| WebSocket | N/A | N/A |
| MCP server | ✓ | N/A |
| S3/bulk delivery | N/A | N/A |
| BigQuery | N/A | N/A |
Pricing comparison: Exa vs Diffbot
| Criterion | Exa | Diffbot |
|---|---|---|
| Entry price | $7 per 1,000 searches | $299/mo |
| Pricing model | Pay per request; free monthly credit | Monthly credit plans |
| Access models | Free tier, Pay-as-you-go, Enterprise contract | Free tier, Monthly plans, Enterprise contract |
| Price transparency | Public price | Public price |
| Price tier | Budget | Mid-market |
Who each API suits: Exa vs Diffbot
| Dimension | Exa | Diffbot |
|---|---|---|
| Buyer type | Individuals to enterprise | Individuals to enterprise |
| Typical uses | AI & LLM apps, Research & academia | AI & LLM apps, Research & academia, Marketing & PR |
| Example use cases | Grounding chatbot answers in recent articles. Research agents gathering background on a topic. | Monitoring niche trade publications. Clean article text for an LLM from known URLs. |
| How you get access | Free tier | Free tier |
Exa vs Diffbot: pros and cons
| Exa | |
|---|---|
| + | Finds relevant coverage that keyword queries miss |
| + | Contents come with results, so there is no second fetch-and-parse step |
| + | An MCP server and Python and TypeScript SDKs are official |
| + | Pay per request with no monthly minimum |
| - | No source taxonomy, sentiment or story clusters |
| - | Publication dates come from crawl metadata and can be off |
| - | Monitoring thousands of queries a day gets expensive |
| Diffbot | |
|---|---|
| + | No custom scrapers to maintain when a site changes layout |
| + | 10,000 free credits with no card |
| + | Knowledge Graph links coverage to companies and people |
| + | Crawlbot handles crawling the publishers you pick |
| - | Five calls a minute on the free plan |
| - | Knowledge Graph exports cost 25 credits each |
| - | You assemble the feed yourself |
Who should choose Exa?
A typical fit: grounding chatbot answers in recent articles.
Search by meaning with page text returned in the same request. Paid access starts at $7 per 1,000 searches. Typical uses: AI & LLM apps, Research & academia.
Who should choose Diffbot?
A typical fit: monitoring niche trade publications.
Parser-free extraction from any article URL, linked to a Knowledge Graph. Paid access starts at $299/mo. Typical uses: AI & LLM apps, Research & academia, Marketing & PR, Financial services.
Decision matrix: Exa vs Diffbot
| Your situation | Recommended choice |
|---|---|
| You want to start free before paying | Both |
| Your budget is at the lower end | Exa |
| You need full article text in the response | Both |
| You need years of historical news | Diffbot |
| You want an official SDK | Both |
| You are wiring news into an LLM agent | Exa |
Use case fit: Exa vs Diffbot
| Use case | Exa fit | Diffbot fit | Winner |
|---|---|---|---|
| AI & LLM apps | Strong | Strong | Both equally |
| Research & academia | Strong | Strong | Both equally |
| Marketing & PR | Limited | Strong | Diffbot |
| Financial services | Limited | Strong | Diffbot |
Verdict: Exa vs Diffbot
Exa (4.2/5) is the stronger overall choice as a news data source. Search by meaning with page text returned in the same request.
Diffbot (3.7/5) is worth a look if you need clean article text for an LLM from known URLs. If your situation matches that, Diffbot is a competitive option.
Related comparisons
Exa vs Diffbot FAQ
Is Exa better than Diffbot?
Exa (4.2/5) scores higher overall, but "better" depends on your use case. Exa's strongest advantage: finds relevant coverage that keyword queries miss. Diffbot's strongest advantage: no custom scrapers to maintain when a site changes layout.
How do Exa and Diffbot differ in pricing?
Exa: pay per request; free monthly credit, with paid access from $7 per 1,000 searches. Diffbot: monthly credit plans, with paid access from $299/mo. Both offer some free access for testing.
Which is better for enterprise: Exa or Diffbot?
Both sell enterprise contracts. Neither carries licensed publisher content, so check copyright terms before republishing anything.
What are the main differences between Exa and Diffbot?
What sets Exa apart: search by meaning with page text returned in the same request. What sets Diffbot apart: parser-free extraction from any article URL, linked to a Knowledge Graph. They also differ on entry price ($7 per 1,000 searches vs $299/mo) and typical uses (AI & LLM apps, Research & academia vs AI & LLM apps, Research & academia).
Verify all details directly with each API before making a decision.