Banking & market infrastructure
Tracing contagion through a counterparty network
Where an aggregate stress test reports a loss, a network simulation reports the route — and the point at which the response stops being linear.
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AutoSimAn AlphaIQ product
AutoSim reads your description or PDF, writes the simulator, fits it by Bayesian calibration and scores it out-of-sample — in your browser, in minutes. Every number traces back to an executed computation.
See the process. Change the outcome.
The problem
The new failure mode: anyone can ask an AI for a model that looks right. Nobody can tell you if its numbers mean anything. The bottleneck moved from writing models to trusting them.
The solution
The AI does
Executed code does
AI narrative is never folded into a numeric score. Every number traces to an executed computation.
How it works
Each stage produces an artifact you can read, and nothing downstream runs on a claim the stage before it could not support.
Plain-language description in; parameters derived with roles and citations, so every prior has a stated source.
A reference simulator generates clean calibration data — or you upload your own observations and the system scores their quality.
The simulator is streamed live as it is written, grounded in 23 book-tested reference models rather than generated from scratch.
An identifiability screen first, then ABC-SMC: a posterior with 95% credible intervals instead of a single fitted point.
A 30-run Monte-Carlo ensemble, in-browser, with seeds recorded per run so any trajectory can be reproduced.
Out-of-sample score, self-heal loop, and an exportable model-risk report built for review.
Zero infrastructure: the compute-heavy parts run in your browser via WebAssembly, so your data never has to leave the machine it is on.
Why AutoSim
Measures which parameters your data can actually pin down — and freezes the rest, with reasons. No fake precision.
Synthetic data yields a plausibility claim. Real data yields a predictive claim, scored on a held-out window. The system will not let one masquerade as the other.
Weighted rules that actually computed, renormalised. "Not assessed" beats a guessed number, and critical bugs cap the score.
An automatic repair loop that ratchets on the validity score — keeps a fix only if the score rises, reverts everything else, and stops at plateau.
Methodology, posteriors, convergence, overfit ratio and limitations — regenerated byte-identically from stored metrics. Built for audit.
Eighteen months of validation engineering that an API wrapper cannot copy in a weekend.
Proof
The engine is checked against problems whose answers are known in advance, across different modelling paradigms.
β = 0.060
Planted-truth SIR: a true transmission rate of 0.06 recovered as 0.060 [0.052, 0.071] — the 95% credible interval covers the truth.
ρ = 0.70
M/M/1 queue: utilisation recovered within ±0.06 from the transient alone, and Little's law holds. Same engine, different paradigm.
72 → 84%
Self-heal on a degraded labour-market model: two kept repairs, one honest revert, an honest plateau — the whole trajectory visible to the user.
Live today
AlphaIQ
AlphaIQ builds calibrated, validated agent-based simulations of the markets, portfolios and institutions our clients operate in. AutoSim is the self-serve product; bespoke engagements are the hands-on path for teams who want the model built with them.
Applications
Insights
Method · 6 min read
A model that cannot show its calibration, its sensitivities and its failure modes is a story with numbers in it. Three artifacts that should exist before any result is presented.
4 August 2026
Method · 7 min read
Why aggregate models miss the transitions that matter most, and what changes when you simulate the participants instead of the average.
21 July 2026
Practice · 5 min read
A short field guide for decision-makers: five questions that separate a model fitted to evidence from one fitted to the past.
30 June 2026
Next step
Describe it in plain language and AutoSim will build, calibrate and score a simulation of it while you watch. If the question needs more than the product alone, AlphaIQ will build it with you.