Changelog

What we shipped and when. No vaporware — everything here is live in production.

May 2026

New

Cost calculator for chiral resolution savings

Interactive ROI calculator on the homepage — input your quarterly compound volume and per-resolution cost, see how much ChiralCall saves by prioritizing the correct enantiomer first.

New

Decision memos and shareable predictions

Copy a formatted decision summary from any prediction — paste it into Slack, email, or your lab notebook. Batch comparison reports now include a one-click "Copy Decision Memo" for internal distribution.

New

Blinded benchmark comparison tool

CRO teams can now compare ChiralCall predictions against their own ground truth, entirely client-side. Your answers never leave your browser.

Safety

Safer predictions for symmetric scaffolds

DHP-C4-symmetric compound class split — dihydropyridines with C4 symmetry now return a separate, properly validated prediction instead of being silently merged with asymmetric DHPs.

Safety

Direction fix for diaryl-cyclic-amine-AH class

Corrected the predicted active enantiomer direction for the diaryl-cyclic-amine-AH compound class after identifying an inversion error during expanded validation.

Improved

Leave-one-out cross-validation across all classes

Every compound class now validated with LOO cross-validation on ChEMBL 36 data. Overall served accuracy: 98% across 691 ChEMBL compounds.

April 2026

Improved

Works with any SMILES notation

Switched from brittle text-substring matching to RDKit SMARTS substructure matching. Your SMILES string can use any valid notation — Kekulé, aromatic, any atom ordering — and ChiralCall resolves it correctly.

Improved

Tells you when it's uncertain

Specificity scoring automatically detects when a compound matches multiple compound classes. Instead of silently picking one, ChiralCall flags the ambiguity and selects the most structurally specific match.

New

Meets regulatory documentation requirements

API responses now include per-class validation statistics — accuracy, Wilson 95% confidence intervals, LOO results, and compound class size — so predictions can be cited in regulatory filings without manual lookup.

New

Calibrated Confidence Score (CCS) in API

Every prediction now includes a Calibrated Confidence Score (0–100) computed via logistic regression over structural features. CCS tiers (very high, high, medium, low) give you a per-compound reliability estimate.

New

CRO Pilot program launched

Free 60-day pilot for CRO teams: submit up to 150 compounds, get predictions with full validation data, compare against your own ground truth. No credit card, no commitment.

March 2026

New

3D molecule viewer on prediction pages

Interactive 3D visualization of predicted stereochemistry on every shareable prediction page. Real molecular structures from PubChem with drag-to-rotate and pinch-to-zoom.

New

Wrong predictions browser

Full transparency: browse every wrong prediction ChiralCall has ever made, filterable by compound class, with per-class accuracy bars and error breakdowns.

February 2026

New

Dashboard and API v1

User dashboard for managing predictions and API keys. RESTful API v1 with batch processing, authentication, rate limiting, and programmatic access to all prediction data.

Coverage

Kinase atropisomer support

Dedicated compound class for atropisomeric kinase inhibitors — a scaffold type that most chirality tools ignore entirely.

January 2026

Coverage

Agrochemical compound classes

13 agrochemical compound classes including pyrethroids, triazole fungicides, and organophosphates. ChiralCall now covers both pharmaceutical and agricultural chirality.

Coming Soon

Python package

pip install chiralcall — full API bindings, batch processing, and notebook integration.

R package

install.packages("chiralcall") — tidyverse-compatible interface for R users.

Custom compound class development

Paid service for proprietary scaffolds not in our public library. We validate on your data, you get a private compound class.

More compound classes every month

Currently at 53 compound classes and growing. Community-requested scaffolds are prioritized — request yours below.

Don't see your compound class?

Request a new scaffold and we'll prioritize validation if it has ≥10 known compounds.

Request a Compound Class