How Asthra compares

Chat vs. RAG vs. the Asthra studio.

Three categories of tool show up in evaluations: general-purpose chat assistants, in-house RAG builds, and content-management add-ons. Here's where each one breaks down — and where the chat-native studio purpose-built for regulatory writing earns its keep.

Side-by-side

What matters in regulated writing.

Capability

Generic AI chat

In-house RAG build

Asthra

Studio surface

Chat-native authoring inside the document

~Chat only, no document context

×Form-based UI, not chat-native

✓Section overview, freeform chat, approval gates — one surface

Walk-away drafting (run-and-return)

✓Background run, return to bundle in 1–2h

Mid-draft literature search (PubMed / CT.gov / bioRxiv)

~Open-internet, no provenance

✓Approval-gated, ledger-logged

Agent-driven data analysis over line listings & sales data

×LLM-fabricated arithmetic, no audit

✓Deterministic Python, every step audit-logged, table/figure output

Reusable reviewer personas / skills

✓FDA Clinical, CMC, CER Device, CSR Writer QC

End-of-run QC report

✓Structured quality pass on every run

Audit-ready run bundles

✓Draft + provenance trail + QC + reproducibility metadata

Grounding & provenance

Closed-system drafting; internet access gated

×Open by default; falls back to training memory

~Depends on implementation

✓Closed by default; writer-approval gate, ledger-logged

Sentence-level citations to your sources

×Best-effort, often invented

~Document-level only, typically

✓Document + sentence, on demand

Explicit gap flags for missing data

×Fills gaps with plausible text

×Surfaces nothing

✓Inline, ledger-recorded

Hyperlinks resolved at draft time (eCTD B21)

×Publishing-phase fixup

✓Anchored at write time, re-derives on reorder

Regulated writing fit

Module-specific writing rules (ICH E3, MDR, M4Q)

~Custom-built per module

✓Built in

Writes into your house templates

~Often markdown output

✓Native .docx with styles

Lives inside Microsoft Word

×Separate browser app

×Custom UI

✓Word add-in

Audit & compliance

Append-only audit ledger

~If you build it

✓Embedded in .docx

Survives the vendor (artifacts portable)

~Depends on architecture

✓By design

Operations

Time to first usable draft

✓Hours, but not trustworthy

×6–12 months to build

✓Days, with provenance

Maintenance & model upgrades

✓Vendor handles

×Your team's burden

✓Vendor handles, validated

Why this matters

Three things only
a purpose-built tool gets right.

REASON / 01

Closed-system retrieval is architectural

You can't bolt it onto a general chatbot. The drafting agent has to be designed without internet access from day one — and we built Asthra that way.

REASON / 02

Module rules aren't prompts

ICH E3, MDR, M4Q aren't style preferences — they're document obligations. Asthra encodes them as validated rules per module, not free-text prompts that drift across runs.

REASON / 03

Audit readiness lives with the document

The ledger embeds in the .docx. It survives offline, vendor changes, and regulatory archival. That's a regulated-writing property, not an analytics dashboard.

Try it on a real CSR.

30-day pilot. We benchmark Asthra's output against whatever you're using today — generic AI, in-house build, or manual.

Start a pilot →How Asthra works