Actuarial software in P&C: which tool solves which problem

Nobody buys "actuarial software". They buy a fix for one specific thing that is slow, and the category sells at least four different fixes under one name. Sort the vendors by the problem they were built for and most shortlists get shorter, because three of the four rows below will not be your row this year.

Four problems, not one market

Start from what is actually slow. A team whose model build takes a quarter has a different problem from a team whose models are fine and whose analysts spend three weeks assembling the run around them, and the two problems are not solved by the same software.

| If your problem is | Look at | Because |

| --- | --- | --- |

| Slow model building for pricing (GLMs, GAMs) | Akur8, WTW Radar, Earnix, SAS | These sell model productivity: fitting, iterating and explaining a rate model faster than a hand-built one |

| Specialty or commercial pricing and rating deployment | hyperexponential, Guidewire PricingCenter | These sell the pricing environment itself, where a model becomes a rate an underwriter uses on a risk |

| The manual work around the models (extraction, reserving runs, memos, audits) | Tesora, general assistants such as Claude | These do the assembly an actuary does by hand in spreadsheets, which is where the weeks go |

| Life valuation and capital (IFRS 17, Solvency II) | Prophet, MG-ALFA, Aon Tyche | Valuation and capital modeling for life and annuity books, a different profession from P&C pricing |

The stack you already run

Excel, SQL and R or Python remain the most widely used actuarial software in existence, and every vendor above is sold against them rather than instead of them. It is worth being honest about why they persist: they are transparent, they are auditable by anyone who opens the file, and nobody has to be trained on them.

That sets the bar for anything you buy. A tool that cannot show its working is a step backwards from a spreadsheet, whatever else it does faster, because the spreadsheet could always be opened and checked by the person who has to sign underneath it.

Where Tesora sits

We are in the third row and only the third row. The models are not the bottleneck in most P&C teams we talk to; the work around them is. Finding the data, squaring the triangles, on-leveling, rebuilding a competitor rate plan out of a filing, drafting the memo, checking the result against the standards before anybody signs it.

What makes that safe to hand over is the record rather than the model. Every value cites the page or cell it came from, every analysis replays from the same inputs months later, and author, reviewer and approver stay three separate identities with a log behind every promotion. An answer nobody can check is worse than no answer, which is why a general assistant is in that row with us and does not finish the job.

If your problem is in one of the other three rows, buy from that row first. We would rather sit out a bad fit than be on a shortlist we cannot win on the merits.

Questions to ask every vendor in the demo

Ask all of these of us too. They are the questions that separate a tool from a demo, and the answers are usually short.

  • Show me where this number came from. Not the model output, the specific page, cell or filing underneath it.
  • Run this analysis again in six months on the same inputs. Do I get the same answer, and can you prove it?
  • Who is the author, who is the reviewer, who approved it, and can those be the same person by accident?
  • What happens when your model is confidently wrong on a rate filing, and what in the product catches it before I sign?
  • What does this replace? If the answer is nothing, it is a second system and somebody has to keep both.
  • Where does my data live, who else is on that hardware, and is any of it used to train a model?

Frequently asked questions

What is the best insurance pricing software for actuaries?

There is no single best, because the category covers four different problems. Akur8, WTW Radar, Earnix and SAS sell faster pricing model building. hyperexponential and Guidewire PricingCenter sell the specialty and commercial rating environment. Prophet, MG-ALFA and Aon Tyche cover life valuation and capital. Tesora covers the manual work around the models: extraction, reserving runs, memos and audits, with a citation on every value.

Is Tesora an alternative to Akur8 or WTW Radar?

Usually not. Those tools make building and deploying a pricing model faster, and teams that buy them have model building as their bottleneck. Tesora automates the assembly around the model: reading filings and loss runs, squaring triangles, on-leveling, drafting the memo and regrading the analysis before it is signed. Carriers commonly run both.

How is Tesora different from using Claude or ChatGPT directly?

We route to those models, so the model is not the difference. What an actuary needs around it is: the data wired in once instead of pasted into a chat, a method library the work is held to, a citation on every figure back to its source page or cell, and author, reviewer and approver kept as separate identities with an audit log. A chat window starts empty every morning and cannot show its working to a regulator.

What actuarial software do most teams actually use today?

Excel, SQL and R or Python, in almost every team, including the ones that have also bought a platform. Any tool worth adding has to be auditable in the way a spreadsheet is, or it is a step backwards for work somebody has to put their name to.

Does Tesora handle IFRS 17 or Solvency II?

No. Those are life valuation and capital problems, and Prophet, MG-ALFA and Aon Tyche are built for them. Tesora is property and casualty: pricing, reserving, rate filing and the quarterly close.

Sources

  • [Akur8, Home](https://www.akur8.com/)
  • [hyperexponential, Decision engine](https://www.hyperexponential.com/decision-engine)
  • [WTW, Radar](https://www.wtwco.com/en-gb/solutions/products/radar)
  • [Earnix, Home](https://earnix.com/)
  • [Guidewire, PricingCenter](https://www.guidewire.com/products/core-products/insurancesuite/pricingcenter-insurance-pricing-software)
  • [SAS, Insurance analytics](https://www.sas.com/en_us/industry/insurance.html)
  • [FIS, Prophet](https://www.fisglobal.com/products/prophet-actuarial-software)
  • [Moody’s, MG-ALFA](https://www.moodys.com/web/en/us/insurance/solutions/mg-alfa.html)
  • [Aon, Tyche](https://www.aon.com/risk-services/tyche)