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Comparison · Analytics
cmdstanpy vs Fulcrum
A side-by-side editorial comparison of cmdstanpy and Fulcrum — release velocity, themes, recent moves, and the top alternatives to consider.
cmdstanpy vs Fulcrum: at a glance
| Feature | cmdstanpy | Fulcrum |
|---|---|---|
| Sector | Analytics | Analytics |
| Velocity score | 0.0 | 6.3 |
| Sparks · 30d | 0 | 0 |
| Top themes | bayesian, stan, mcmc, deprecations | field-data-collection, esri-arcgis, offline-maps, mobile-releases |
| Last editorial update | 1h ago | 17h ago |
| Website | Visit → | — |
What is cmdstanpy?
CmdStanPy is clearing deprecations ahead of a 2.0 it keeps announcing.
CmdStanPy is at v1.3.0, which added a diagnose method on CmdStanModel, sampler timing information, create_inits() across the stanfit classes, and much faster MCMC CSV parsing. Every release in this window opens with the same notice: the next non-bugfix release will be 2.0 and will remove existing deprecations. In line with that, 1.3.0 drops Python 3.8 and renames the metric argument to inv_metric.
What is Fulcrum?
Fulcrum is consolidating on Esri, with Google Maps gone September 1
The mapping stack is the whole story right now: ArcGIS SDK 300.0.0 on iOS, the latest ArcGIS and deck.gl on web, and a hard cutover date after which any organization still defaulting to Google Maps is switched to Esri automatically. The mobile releases in this window are almost entirely map and location fixes — basemap loading, offline symbol styling, location resolution that blocked saves. On-device inference quietly changed format, dropping ONNX.
cmdstanpy vs Fulcrum: editorial side-by-side
cmdstanpy
0.0ANALYTICS
CmdStanPy is clearing deprecations ahead of a 2.0 it keeps announcing.
◆ Current state
CmdStanPy is at v1.3.0, which added a diagnose method on CmdStanModel, sampler timing information, create_inits() across the stanfit classes, and much faster MCMC CSV parsing. Every release in this window opens with the same notice: the next non-bugfix release will be 2.0 and will remove existing deprecations. In line with that, 1.3.0 drops Python 3.8 and renames the metric argument to inv_metric.
◆ Where it's heading
The package tracks upstream Stan and prepares for its own break. New inference methods arrive as Stan ships them — Laplace with Stan 2.32, Pathfinder with 2.33 — while the interface work is mostly deprecation staging and CSV input-output performance. The repeated 2.0 warning across two years of releases suggests the cut has been deferred more than once.
◆ Prediction
The notice at the top of every release points to 2.0 as the next non-bugfix version, removing the deprecations staged here including the metric argument.
Fulcrum
6.3ANALYTICS
Fulcrum is consolidating on Esri, with Google Maps gone September 1
◆ Current state
The mapping stack is the whole story right now: ArcGIS SDK 300.0.0 on iOS, the latest ArcGIS and deck.gl on web, and a hard cutover date after which any organization still defaulting to Google Maps is switched to Esri automatically. The mobile releases in this window are almost entirely map and location fixes — basemap loading, offline symbol styling, location resolution that blocked saves. On-device inference quietly changed format, dropping ONNX.
◆ Where it's heading
One platform bet runs through everything: Esri as the single map engine, with Google's satellite, hybrid, and street imagery retained as basemap options so the migration costs users imagery choice, not capability. The current release cadence is stabilization work paying down that migration rather than new ground.
◆ Prediction
Expect map and location fixes to keep dominating releases through the September 1 cutover, with the Esri-only capabilities already listed — snapping, ArcGIS Feature Service connectivity, offline basemaps — becoming the default surface rather than the alternative one.
Alternatives to cmdstanpy and Fulcrum
Other Analytics 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 cmdstanpy or Fulcrum.
modeltime
modeltime built conformal intervals in, then went quiet on features.
performance
performance keeps adding ways to check a model you have already fitted.
dowhy
DoWhy adds one estimation method a year and keeps its identification edge.
OpenHouse
OpenHouse is hardening the seams where table policies and jobs quietly fail.
silx
silx 3.0 moved its default Qt binding to PySide6 — a migration for everyone embedding it.
See all cmdstanpy alternatives → · See all Fulcrum alternatives →
Recent activity from cmdstanpy and Fulcrum
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 23h agoFulcrumiOS fix for slow location resolution blocking saves
- 5d agoFulcrumMap engine updated to the latest ArcGIS and deck.gl
- 7d agoFulcrumAndroid stability fixes for ArcGIS location and signatures
- 7d agoFulcrumiOS basemap loading and map-centering fixes
- 8d agoFulcrumArcGIS SDK 300.0.0 lands; ONNX inference support removed
- 8d agoFulcrumOffline ArcGIS layers keep custom symbols and labels
- 9mo agocmdstanpydiagnose method, sampler timings and faster CSV parsing
- 2y agocmdstanpyFixes from_csv() for CmdStan 2.35 and later
- 2y agocmdstanpyCmdStan 2.35 test fixes and multi-chain profile output
- 2y agocmdstanpypyproject.toml build and pathfinder() argument fixes
- 2y agocmdstanpyNew Pathfinder arguments and warmup without adaptation
- 2y agocmdstanpyLaplace method and Pathfinder exposed from upstream Stan
Frequently asked questions
What is the difference between cmdstanpy and Fulcrum?
They serve adjacent needs but don't currently overlap on shipped themes. Fulcrum is currently shipping more aggressively (velocity 6.3 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 cmdstanpy better than Fulcrum?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Fulcrum is currently shipping more aggressively (velocity 6.3 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 Analytics products to evaluate alongside.
What are the best alternatives to cmdstanpy?
Top cmdstanpy alternatives in Analytics are ranked by recent ship velocity. Browse the "cmdstanpy alternatives" section above for the current picks, or visit /alternatives/cmdstanpy for the full list with editorial commentary on each.
What are the best alternatives to Fulcrum?
Top Fulcrum alternatives in Analytics are ranked by recent ship velocity. Browse the "Fulcrum alternatives" section above for the current picks, or visit /alternatives/fulcrum for the full list with editorial commentary on each.