Razib Khan's Unsupervised Learning is a weekly interview podcast hosted by Razib Khan, covering genetics, history, politics and science with a rotating roster of guests. The show has 200 episodes, typical episodes run 60 to 80 minutes, and estimated downloads are 5,000 to 25,000 per episode. Estimated rate is $90 to $625 per episode.
Long-form genetics and politics interviews for an engaged, high-intent audience
- Roughly 200 episodes with a steady weekly cadence since January 2023.
- Apple Podcasts rating of 4.7 from 212 ratings signals an engaged listener base.
- Guest-driven format gives sponsors a thoughtful, context-rich read environment.
Brand fit report
Content
- Formats
- interview, long-form conversation
- Tone
- analytical, discursive
- Language
- English
- Production
- Clean, edited audio
- Typical length
- 60 to 80 minutes
Audience
Commercial
- Brands seen
- None yet
- Categories promoted
- None yet
- Affiliate links
- No
No sponsor mentions found in the feed; the description links to a Substack newsletter only.
Suitability GARM Brand Safety Floor + Suitability
Recent titles cover contested political topics such as the California project and the rise of Reform UK, so political content is flagged as high; the feed carries no explicit flag.
We classify content, never people. No age, gender, ethnicity, religion or political views are inferred about the creator. Audience figures are estimates unless marked verified. Creators can correct anything on their profile.
Where to listen
| Platform | Link |
|---|---|
| Website | razib.substack.com |
| Apple Podcasts | podcasts.apple.com/podcast/id1542136715 |
| RSS feed | unsupervisedlearning.libsyn.com/rss |
Benchmark score: 77 / 100
Public rule, same for everyone. How it works.
Recent episodes
| Episode | Date | Length |
|---|---|---|
| Theo Jaffee: monitoring the "singularity" | 2026-10-15 | 56 min |
| Scott Greer: Whitepill and Sunbelt | 2026-10-11 | 1 h 7 min |
| Brian Chau: noticing with technology + investigative journalism | 2026-10-07 | 34 min |
| Kyle Orton: Muslims before Islam | 2026-09-29 | 52 min |
| Nikolai Yakovenko: the wages of the Hugging Face hack | 2026-09-10 | 1 h 13 min |
| Werner Zagrebbi: Adventures in Forbidden Data | 2026-09-08 | 1 h 1 min |
Last six episodes from the show's feed, latest 4 days ago, a new one about every 7 days.
Razib Khan engages a diverse array of thinkers on all topics under the sun. Genetics, history, and politics. See: http://razib.substack.com/
Do you make Razib Khan's Unsupervised Learning? Claim or remove this page.
About Razib Khan's Unsupervised Learning
Razib Khan's Unsupervised Learning is an interview podcast hosted by Razib Khan that engages guests on genetics, history, politics and science. According to the show feed and its website at razib.substack.com, the weekly show has 200 episodes since January 2023 and typical episodes run 60 to 80 minutes.
The show has a 4.7 average rating from 212 ratings on Apple Podcasts. Listeners are estimated, not measured, at 5,000 to 25,000 downloads per episode, skewing toward English-speaking adults in the United States. No sponsors appear in the feed.
At an estimated $90 to $625 per host-read mid-roll, the show suits book publishers, education brands and newsletter services looking for a long-form, discussion-driven audience.
Written from the show's public RSS feed, its Podcast Index listing and episode titles. Numbers updated 2026-10-19. Razib Khan's Unsupervised Learning can edit or remove this page at any time.
Questions about Razib Khan's Unsupervised Learning
How much does Razib Khan's Unsupervised Learning charge for a podcast sponsorship?
Estimated rates are $90 to $625 per host-read mid-roll ad, based on an estimated 5,000 to 25,000 downloads per episode. Final pricing depends on the show's current terms.
What is Razib Khan's Unsupervised Learning about?
The show is an interview podcast covering genetics, history, politics and science. Host Razib Khan speaks with a rotating set of guests in long-form conversations, with weekly episodes.
How do I contact Razib Khan's Unsupervised Learning about sponsoring an episode?
The show's contact email unlocks on Starbooked for $0.80. Boosted shows can be booked through Starbooked directly.
Similar creators
Podcast and other creators in genetics, ranked by score.
| Creator | Niches | Est. downloads | Median views | Rate | Score |
|---|---|---|---|---|---|
| geneticsscience education | 5k | – | $40–200 | 83 | |
Alex Dainis@alexdainisphd · US | science communicationgenetics | 54k | 4.5k | $150–250 | 31 |
YourekaScience@yourekascience | science educationgenetics | 19k | 1.3k | $150–250 | 12 |