Surfer SEO helps a writer optimize one article at a time against what ranks, and it also tracks AI answers on five engines. Byword generates articles in batches and from programmatic templates, then publishes them to a CMS on per-article credits, with no native AI-answer tracking. DeepSmith matches Byword on batch and scheduled publishing and goes further on what gets written: Opportunity Agents and the Content Map pick topics from AI answer data and competitor gaps, and Autowrite turns them into publish-ready articles.
The Surfer SEO vs Byword question usually comes down to where your time goes. If most of it goes into making each article good enough to rank, Surfer's editor and score are built for that. If most of it goes into getting enough articles out the door, Byword is built for that, and it charges by the article. Both are self-serve with public pricing, so you can check the numbers below against your own volume. DeepSmith is the third option for teams that also have to decide what to write.
Surfer SEO vs Byword: the short answer
- Choose DeepSmith if you want topics picked from AI answer data and competitor gaps, written into publish-ready articles on a schedule, and tracked on the same plan, from $99 a month.
- Choose Surfer SEO if your bottleneck is quality per article and you want to score and tune each draft against the top results, from $49 a month billed yearly, with AI tracking on five engines from its higher plans.
- Choose Byword if your bottleneck is volume and you want batches, programmatic templates and scheduled CMS publishing on per-article credits, from $99 a month for 25 articles, with 5 free articles to start.
Comparison table
| Criterion | DeepSmith | Surfer SEO | Byword |
|---|---|---|---|
| Entry price, billed monthly | $99/mo (Pro) | Not listed | $99/mo (Starter) |
| Entry price, billed yearly | $80/mo | $49/mo (Discovery) | $83/mo |
| Volume at entry tier | 20 articles/mo | 120 documents to create or optimize | 25 articles/mo |
| Free trial or free start | 7-day free trial | 7-day Pro trial | 5 free articles, no card |
| SERP-based content scoring | - | Yes | Yes |
| Internal linking | Yes | Yes, Pro and up | Yes |
| Bulk generation | Yes | Partial | Yes |
| Scheduled publishing | Yes | Partial | Yes |
| CMS publishing | Yes | Yes | Yes |
| AI visibility tracking | Yes | Yes, five engines | Partial |
| Public API | Yes, read-only | Yes, Peace of Mind and Enterprise | Yes, Standard and up |
| Security certifications | SOC 2, GDPR, ISO | GDPR claimed, no SOC 2 listed | Not listed |
| Review rating | 4.8/5 on G2 | 4.8/5 on G2 | 3.5/5 on G2 |
Pricing and features as of September 2026, from each vendor's site and public reviews.
Surfer SEO

Surfer is an SEO content optimization platform from Wroclaw, Poland, founded in 2017 and acquired by Positive Group in October 2025. It is best known for the Content Editor and its real-time Content Score, which grade a draft against the pages in Google's top 10 and the pages AI answers cite most. Around that sit Surfer AI, which writes a full article inside the editor, plus Topical Map, Content Audit, automated internal linking and AI Tracker.
It is built for SEO practitioners, in-house content teams and agencies who write or refresh articles against what ranks. The standout is the editor guidance, which reviewers describe as actionable and quick to use. The real limitation is plan gating. Discovery has no AI tracking, Topical Map and internal linking need Pro, and the API needs Peace of Mind. Surfer AI articles also draw on separately sold credits, and Surfer does not schedule or publish on its own without Zapier.
Reviewers rate Surfer 4.8/5 on G2 (546 reviews) and 4.9/5 on Capterra (422 reviews), checked in September 2026. The complaints are price, document and credit limits, and suggestions that can feel formulaic.
Byword

Byword is an AI article writer from London, launched in November 2022 and relaunched as v2 in January 2026. It turns a keyword, a title or a list into a full article in roughly 60 to 90 seconds, and it covers research, voice training, a knowledge base, internal linking, images and publishing to WordPress, Webflow, Ghost, HubSpot and Medium. Volume comes from campaigns, which run about three articles in parallel, and from programmatic templates that fill variables from CSV data for hundreds to thousands of pages.
It suits SEO teams, agencies and niche-site publishers who want many search-oriented articles and will edit and fact-check the output themselves. The standout is the pricing model, one credit per article with unused credits rolling over. The real limitations are that it has no native AI-answer tracking, that team seats and the API start at Standard, and that no SOC 2 or SSO is described on its pages.
Independent reviews are few and mixed: 3.5/5 on G2 from 3 reviews and 2.8/5 on Trustpilot from 7, against 5.0/5 on Capterra Ireland from 1. Byword's own comparison page with Surfer calls its scoring implicit and says Surfer's analyzer gives deeper competitive intelligence.
DeepSmith: the alternative that decides what gets written

Surfer and Byword both start from a keyword or a list you already have. Surfer can suggest gaps through Topical Map on Pro, and Byword's research tab lists content gaps, so neither is blind on topics. What they work from is keyword and search result data. DeepSmith works from what AI engines say about your category and from what competitors publish that you don't, and it keeps the reason attached to every idea.
Opportunity Agents read your AI visibility data or your Content Map and return ideas with the data point that justifies each one, such as a competitor page winning citations for prompts you track. The Content Map crawls your site and your competitors' sites onto one topic taxonomy, so coverage gaps and untapped topics are measured. You can defend the backlog instead of guessing at it.
The writing side is as hands-off as Byword's. Planned Content gives each idea a date, and Autowrite writes it on that date from your stored Deep IQ context, so persona, voice, content type and link targets are set once. The Writer returns a finished article with research, internal and external links, a cover image and publish-ready metadata. You review it in Produced Content and publish to WordPress, Webflow, Strapi, Sanity, Contentful or your own webhooks.


Plans run $99, $199 and $399 a month for Pro, Grow and Scale, or $80, $160 and $299 billed yearly, with 20, 40 and 90 articles a month. Tracking is on the same plan, covering ChatGPT on Pro, Perplexity added on Grow and Gemini added on Scale, with all ten engines on Enterprise. There is a 7-day free trial and no long-term contract. The numbers in the screenshots above are demo data, not customer results.
Optimization depth
Surfer wins this one. Content Score grades terms, entities, structure and length against the top 10 results and AI-cited pages, and the score is now split into SEO and AI Search halves in one bar. Surfer also adds guidelines for introductions and a check for pre-publish review. Byword scores while you write too, with a feature page claiming 147 factors, and its Optimize tool compares a page to the top 10. Its own Surfer comparison describes that scoring as implicit and not a 0 to 100 score, so Surfer is the deeper tool when you want to tune a draft line by line.
What DeepSmith does: The Writer builds keyword coverage, heading structure, schema, internal linking and metadata in during creation, and it formats for AEO from the start, with crisp answers near the top and clear headings. DeepSmith doesn't give you a live score to tune a draft against, so the work that Surfer leaves to the editor step is already in the article when it lands in Produced Content.
Bulk generation and publishing
Byword wins this one, and for Surfer SEO vs Byword bulk article publishing it is not close. Campaigns take lists of keywords or titles, programmatic templates fill pages from CSV or API data, and the changelog lists scheduled generation with rate limiting. Publishing goes to five documented CMSs, and Byword also submits published URLs to Google's Indexing API from Starter. Surfer has no bulk generation interface. Auto-Optimize can run in bulk through the API, and Zapier can create Surfer AI articles and publish them, but that needs Peace of Mind, and the Surfy Agent that would publish for you is announced as coming soon.
The tradeoff with volume is quality control. Byword expects you to edit and fact-check the output, and older reviews report repetitive passages and weak link choices, so the time you save on writing partly moves to review.
What DeepSmith does: Planned Content lets you schedule ideas individually or in bulk, and Autowrite then writes each one on its date without anyone in the app. Scale includes 90 articles a month. The output is a publish-ready article grounded in Deep IQ, not a first draft to rescue, so the volume doesn't have to come with a heavy editing step.
AI visibility tracking
Surfer wins this one between the two. AI Tracker checks ChatGPT, Perplexity, Google AI Mode, AI Overviews and Gemini for each prompt, and Surfer says it scrapes the real answer interfaces and averages several runs a day. It tracks 50 prompts daily on Pro and AI Search Analytics and 100 on Peace of Mind, while Standard tracks 25 ChatGPT prompts weekly and Discovery has none. The standalone AI Search Analytics plan is $82 a month billed yearly and doesn't include content creation. Byword has no native tracker, links its AI visibility page to the separate Trakkr product, and only mentions AI-search citation data in its MCP documentation.
What DeepSmith does: It tracks mention rate, citation rate, share of voice and sentiment across engines by plan tier, and it shows which of your pages get cited and which competitor pages win the citations. That data feeds the Opportunity Agents directly, so tracking and production share one plan and one set of records.
Pricing and value
Surfer costs less to start, and Byword gives a clearer price per article. Surfer's five self-serve plans run $49, $82, $99, $182 and $299 a month billed yearly, with document limits of 120, 360 and unlimited, and its monthly-billed prices weren't captured. Surfer AI credits are sold separately and their current prices aren't published on the pages read. Byword runs $99, $299 and $999 a month for 25, 80 and 300 articles, or $83, $249 and $833 billed yearly, and extra articles cost $3.50, $3.00 and $2.50 by tier. Credits roll over and never expire. Seats and the API start at $299 on Byword, which matters for agencies, and Surfer's Peace of Mind plan at $299 yearly is the one with the API and Zapier.
From insight to action
Surfer wins on improving pages you already have, and Byword wins on turning a list into live pages. Surfer's Content Audit reads Search Console, flags decaying content and sends rank-drop alerts, and Auto-Optimize refreshes an article in one click. Byword's Optimize flags dropped pages from Search Console too, and its campaigns and MCP loops move a keyword list through to publishing. Neither one starts from AI answer data and carries the evidence into the article plan natively.
What DeepSmith does: The loop is one platform. Tracking shows where you are missing from AI answers, Opportunity Agents turn that into ideas with the evidence attached, Planned Content and Autowrite produce the articles, and Produced Content publishes them. The Content Map keeps coverage current by re-checking sitemaps every 24 hours, so the next round of ideas starts from what is already published.
Which should you choose
- DeepSmith fits teams that want one platform to decide what to write from AI answer data and competitor gaps, produce publish-ready articles on a schedule, and track the result, with plans from $99 a month and a 7-day free trial.
- Surfer SEO fits a team with writers already in place that wants to score and tune each draft, refresh decaying pages and track AI answers on five engines, and can live with plan gating and separately sold AI credits.
- Byword fits an SEO team, agency or niche-site publisher that wants batches and programmatic pages published to a CMS on per-article credits, and will edit the output itself.
If you are still deciding between Surfer SEO or Byword on volume alone, count the articles you need each month first. Byword's plans are sized in articles, while Surfer's are sized in documents to create or optimize, so the two only compare once you know which job your volume is. If neither fits, our page on Surfer SEO alternatives lists eight other options. The Byword alternatives page does the same for the other tool.
Start a 7-day DeepSmith free trial to see tracking, ideas and publish-ready articles on your own site.



