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Comparison · Infra & APIs

BAS vs Jackett

A side-by-side editorial comparison of BAS and Jackett — release velocity, themes, recent moves, and the top alternatives to consider.

BAS vs Jackett: at a glance

FeatureBASJackett
SectorInfra & APIsInfra & APIs
Velocity score0.05.0
Sparks · 30d00
Top themesbayesian-statistics, model-averaging, mcmc, r-packageindexers, torrent-search, maintenance, daily-releases
Last editorial update1h ago10h ago
WebsiteVisit →Visit →

What is BAS?

A Bayesian model-averaging package spending its 2.0 on memory, not methods.

BAS performs Bayesian variable selection and model averaging for linear and generalized linear models, sampling from a model space too large to enumerate. The visible history splits cleanly: 2023-2024 added sampling machinery — an adaptive independent MCMC sampler with Horvitz-Thompson estimation, hereditary-constraint counting — while 2.0.0 in late 2025 reworked how sampler output is allocated in C. The 2.0.2 patch is a PROTECT fix for rchk warnings.

Read the full BAS trajectory →

What is Jackett?

Daily tags chasing tracker domain moves, login changes and freeleech detection

Jackett continues to ship a tag most mornings, each one a short auto-generated commit list of indexer definition edits. The newest adds a cookie login variant for HD-Space and captcha-aware login for funfile; the day before was a sweep of domain bumps and download-volume-factor detection corrections across torrenttip, magnetcat, 52bt, torrenteros, tocashare and seedcore. No release in this window touches the application itself.

Read the full Jackett trajectory →

BAS vs Jackett: editorial side-by-side

B
BAS
INFRA · APIS
0.0

A Bayesian model-averaging package spending its 2.0 on memory, not methods.

◆ Current state

BAS performs Bayesian variable selection and model averaging for linear and generalized linear models, sampling from a model space too large to enumerate. The visible history splits cleanly: 2023-2024 added sampling machinery — an adaptive independent MCMC sampler with Horvitz-Thompson estimation, hereditary-constraint counting — while 2.0.0 in late 2025 reworked how sampler output is allocated in C. The 2.0.2 patch is a PROTECT fix for rchk warnings.

◆ Where it's heading

Memory is the binding constraint and the releases say so directly. The hereditary-constraint counter, the GROW option, and the replacement of over-allocation with resizing all attack the same problem: n.models is a guess, and guessing high wastes memory on problems where few unique models are actually visited. The 2.0.0 work was additionally forced by R tightening its C API against non-API calls like SETLENGTH, a constraint every C-heavy CRAN package has been absorbing. Method development has been quiet since 1.7.x.

◆ Prediction

The 1.7.5 notes call the hereditary-constraint counting a first step and say future updates will cover other constraint types, including polynomials, which remain unhandled. That is the one concrete commitment in this history, though nothing since has returned to it.

J
Jackett
INFRA · APIS
5.0

Daily tags chasing tracker domain moves, login changes and freeleech detection

◆ Current state

Jackett continues to ship a tag most mornings, each one a short auto-generated commit list of indexer definition edits. The newest adds a cookie login variant for HD-Space and captcha-aware login for funfile; the day before was a sweep of domain bumps and download-volume-factor detection corrections across torrenttip, magnetcat, 52bt, torrenteros, tocashare and seedcore. No release in this window touches the application itself.

◆ Where it's heading

This is maintenance as a product, and the cadence is the feature. Trackers rotate domains, add captchas, switch to cookie auth or vary their freeleech percentages, and Jackett absorbs each change within a day — Scenetime was added and dropped within days, 720pier removed and then restored by revert. The recurring shift from form login to cookie and captcha handling across sites is the one visible pattern: the definitions are steadily taking on more anti-bot handling.

◆ Prediction

Expect the same daily cadence of definition edits, with more cookie and captcha login variants as trackers tighten access. The entries show no application-level work planned or in progress.

Alternatives to BAS and Jackett

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either BAS or Jackett.

See all BAS alternatives → · See all Jackett alternatives →

Recent activity from BAS and Jackett

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 12h agoJackettHD-Space cookie login variant; funfile captcha handling
  2. 1d agoJackettDomain bumps and freeleech detection fixes across six trackers
  3. 2d agoJackettIP filtering note for newstudio; anisource goes IPv6-only
  4. 3d agoJackett720pier tracker restored by revert
  5. 4d agoJackettScenetime dropped days after being added; new magnetcat domains
  6. 6d agoJackettdocspedia cookie auth, nyaa season search, duplicate GET fix
  7. 8mo agoBASBAS 2.0.2
  8. 8mo agoBASBAS 2.0.0
  9. 1y agoBASBAS 1.7.5
  10. 1y agoBASBAS 1.7.3
  11. 1y agoBASBAS 1.7.2
  12. 2y agoBASBAS 1.7.1

Frequently asked questions

What is the difference between BAS and Jackett?

They serve adjacent needs but don't currently overlap on shipped themes. Jackett is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is BAS better than Jackett?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Jackett is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to BAS?

Top BAS alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "BAS alternatives" section above for the current picks, or visit /alternatives/bas for the full list with editorial commentary on each.

What are the best alternatives to Jackett?

Top Jackett alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jackett alternatives" section above for the current picks, or visit /alternatives/jackett for the full list with editorial commentary on each.