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AI Detector for finance writing, built for IR, research, and fintech editorial.

Pre-scan shareholder letters, 10-K and 10-Q drafting support, equity research, fixed-income commentary, M&A memos, fund prospectuses, and fintech blog posts before they reach the disclosure committee, compliance principal, or LP base. Sentence-level highlights flag the passages where conviction language goes flat and stock phrasing creeps in, so you can rewrite specific lines instead of arguing about a headline score. An adjunct to professional judgment, not a substitute for it. Free to try. No card.

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Who it is for

Built for IR, research, fintech content, and financial journalism.

Finance writing sits inside a regulated workflow and a reader base that prices conviction. Investor relations leads, sell-side and buy-side analysts, asset-manager communications teams, fintech editorial teams, and financial journalists all share the same need: a fast pre-review scan that surfaces AI residue before a disclosure committee, compliance principal, or institutional reader does.

The 2025 surveys of buy-side and sell-side desks both put generative AI in the drafting workflow at the majority of firms. Bloomberg's own coverage of analyst workflow shifts noted that AI-assisted research routinely passes initial editorial review and stalls only at compliance, when conviction language reads flat against the analyst's prior notes.

Investor relations teams

IR leads at public companies own the shareholder letter, the 10-K and 10-Q narrative drafting cycle, and the script for the earnings call. AI assistance shows up in the MD&A backbone, the segment commentary, and the boilerplate around forward-looking statements. The risk is a letter that reads as outsourced to a language model and erodes the institutional-investor trust that took years to build. Pro at $14.99 a month on yearly fits a solo IR writer; Business at $29.99 fits an IR team coordinating across the disclosure committee.

Sell-side and buy-side research analysts

Analysts producing initiation reports, quarterly previews, post-print reactions, and thematic notes are the highest-conviction writing category in finance. The analyst is the product. AI residue slips in on the company-background and end-market overview sections and bleeds into the thesis paragraphs, where conviction has to live. Pro covers a solo analyst at five to fifteen notes a week; Business fits a research desk running team coverage with shared retention and an audit log.

Asset managers and fund communications

Long-only managers, hedge funds, private credit firms, and multi-manager platforms write LP letters, quarterly updates, fund-launch decks, prospectus narrative, and one-off allocator notes. The stakes are the next fundraise. A letter that breaks the GP's established voice raises a question the LP did not have before, and a question is friction the relationship did not need.

Fintech editorial and financial journalism

Fintech blogs, neobank explainers, brokerage and robo-advisor education content, and independent financial newsletters compete on voice in a feed saturated with AI drafts. Financial journalists at newsroom outlets and on Substack also operate under stylebook rules that increasingly treat AI residue as an editorial signal. The piece that gets read twice is the one that still reads as a specific writer.

Document genres

How each finance document scores differently.

An equity research initiation note and a fintech blog post are not the same animal. Each finance genre has its own register, its own paraphrase density, and its own false-positive risk. Read the score in context of the document rather than chasing a single number across every kind of finance writing.

Shareholder letters and IR communications

Annual and quarterly shareholder letters live or die on CEO and CFO voice. Healthy scores run 75 to 90 on letters drafted from a real strategy outline. The forward-looking-statements boilerplate and the standard performance recap are the highest-risk paragraphs because both default to stock phrasing under deadline. Scan the full letter, then re-scan the strategy section alone if the headline number is borderline.

10-K and 10-Q drafting support

SEC filings are not the place to chase an authenticity score; defined terms, risk factors, and segment language follow disclosure templates by design. Use the scan on the MD&A narrative and the segment-commentary drafts, where AI-assisted prose tends to flatten the operating context. Filed text always goes through counsel and the disclosure committee, not the detector.

Equity research notes

Initiations, quarterly previews, post-print reactions, and thematic notes share a recognisable structure (thesis, drivers, valuation, key risks, recommendation). The structure alone usually does not push a human-written note over a flag threshold. Healthy scores run 70 to 88. The diagnostic is whether the thesis paragraphs carry analyst-specific texture; if they read like end-market generalities, the score will drop and the desk will quietly stop reading.

Fixed-income and credit commentary

Sector outlooks, rates commentary, sovereign credit notes, and CLO and structured-credit memos use defined terminology and named curves heavily. The structure scans clean. The flag points are usually the macro framing paragraphs and the relative-value comparisons, where AI assistance produces smooth prose with the wrong direction or the wrong basis-point delta. Verify the numbers against your screens regardless of the score.

M&A memos and deal commentary

Pitchbook narrative, fairness-opinion supporting memos, and post-announcement commentary read template-heavy by convention. Healthy scores run 65 to 80. The defensive move is to weave specific synergy assumptions, named comparable transactions, and a clear premium framework into the prose so the document does not flatten into generic deal language.

Fund prospectuses and fact sheets

Prospectus narrative, strategy descriptions, and fact-sheet copy follow filing conventions and named-vehicle language. Treat the scan as advisory on these documents and let the regulated content stay where the counsel and compliance team put it. Use the scan more aggressively on the marketing brochure and the LP-letter strategy commentary that sits alongside the regulated document.

Fintech blog posts and editorial

Neobank explainers, brokerage education content, robo-advisor blog posts, and personal-finance editorial compete on accessible language calibrated against authoritative finance substance. Healthy scores run 75 to 90 when a specific writer is behind the piece. The risk is a generic post that reads as commodity content, gains no subscribers, and quietly damages the brand's editorial credibility over time.

Plans & pricing

Pricing for solo analysts and IR or research teams.

Pro at $19.99 a month standard, $14.99 a month on yearly, is the right fit for a solo sell-side or buy-side analyst, IR writer, or fintech editor. Business at $39.99 a month standard, $29.99 a month on yearly, fits IR teams, research desks, and fintech editorial teams running shared review pipelines. Full details on the pricing page.

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Regulatory context

SEC, FINRA, MiFID II, and the AI disclosure question.

Finance writing operates inside named regimes. None currently mandates a blanket AI-use disclosure, but all of them require the substance of the communication to be accurate, substantiated, and fair regardless of how the draft was assembled. TextSight is an adjunct to professional judgment; this section is general context, not legal advice.

SEC marketing rule and Reg FD

In the United States, the SEC marketing rule (Rule 206(4)-1 under the Investment Advisers Act) governs how registered investment advisers present performance, testimonials, and other communications with prospects and clients. It requires fair and balanced presentation, prohibits material misstatements, and sets substantiation standards. Regulation FD separately governs how public companies handle material non-public information; an IR draft that contains MNPI is not safe to paste into any third-party tool until a sanitised version is prepared.

FINRA Rule 2210

FINRA Rule 2210 covers communications with the public for broker-dealers in parallel territory to the marketing rule. Retail communications, correspondence, and institutional communications each carry their own approval and review obligations. AI-assisted research that reads smoothly but carries unsubstantiated claims is a Rule 2210 problem whether or not AI use is disclosed.

MiFID II and FCA financial promotions

In the European Union, MiFID II sets investor-information obligations on suitability, appropriateness, and the fair, clear, and not misleading standard for any communication with retail or professional clients. In the United Kingdom, the FCA financial promotion regime under FSMA, the FCA Handbook (COBS 4 in particular), and the consumer duty set comparable expectations. Across both regimes, substantiation, balance, and clarity on risk remain the core requirements.

Where AI disclosure trends are heading

Regulator positions are evolving. Some firms voluntarily disclose AI assistance in marketing footnotes, some restrict AI in client-facing copy entirely, and some treat AI use as a documented internal-policy matter without external disclosure. Confirm your firm's policy with compliance before relying on any general rule, and treat the TextSight scan as internal pre-review hygiene rather than a disclosure document.

IR trust

Why shareholder letters that read AI lose institutional trust.

Institutional investors read for conviction and continuity. A shareholder letter that breaks the established CEO and CFO voice raises a question on the buy side that the prior letter did not have, and a question is friction the relationship did not need.

Voice continuity across quarters

Buy-side analysts at long-only funds, multi-strategy hedge funds, and pension allocators build a model of management voice across many quarters of letters and call transcripts. A flat AI-drafted MD&A narrative interrupts that model. The institutional reader does not always articulate the change, but the trust-line on the relationship moves down a notch and stays there.

Strategy paragraphs carry the most signal

Performance recaps and segment commentary tolerate templated phrasing because the numbers carry the message. Strategy paragraphs and forward-looking commentary do not; if the prose flattens, the institutional reader infers that the strategy itself is flatter than the prior letter claimed. Use the scan most aggressively on these paragraphs.

The disclosure committee filter

Letters and 10-K narrative pass through a disclosure committee at most public companies. Members include IR, legal, finance, and often the audit chair. AI-cadence prose surfaces inside that review as a soft problem: nothing breaks a specific rule, but the cadence prompts a closer read, the queue slows, and the committee starts asking authorship questions that did not used to come up. Pre-scanning removes that friction.

What institutional readers actually notice

Pattern-flat sentence length, neutral verbs in place of operator-specific verbs ("optimise" instead of "renegotiate", "leverage" instead of "press"), and abstract claims that would normally carry a named driver in this management team's prior letters. The TextSight sentence highlights point at exactly these lines, which is the diagnostic the disclosure committee was already going to make on a slower review.

Analyst voice

Asset-manager and research-analyst voice patterns.

Conviction language is what institutional readers pay for. The detector cannot tell whether your thesis is right, but it can tell when the prose has stopped sounding like a person who believes the thesis.

Quant precision vs human conviction

Asset-manager voice on the systematic side tends toward precision: named factor exposures, explicit lookback windows, defined-risk language. Discretionary voice tends toward conviction: a named driver, a specific contrarian view, a particular operator the PM trusts. AI-assisted drafts often homogenise into a neutral middle that reads as neither and gets discounted by readers familiar with the manager's prior letters. The fix is to make one register dominant per piece and let it carry the prose.

Sell-side analyst patterns

Sell-side notes carry a recognisable structural rhythm: thesis paragraph, three to five driver sub-bullets with prose, valuation framework, key risks, recommendation. AI residue tends to appear in the driver-prose paragraphs as smooth transitional sentences with no channel-check texture. The fix is concrete sourcing per driver: a named distributor, a specific KPI, a quote from the management call, a specific industry contact's read.

Buy-side analyst patterns

Internal buy-side memos to a PM or an investment committee usually run shorter than sell-side notes and trade thoroughness for specificity. The flag points are the macro framing and the position-sizing rationale, where AI assistance tends to produce smooth prose with the wrong base-case anchor. Verify the framing against the team's prior IC memos before circulating.

Editing for voice, not for the score

The score is the diagnostic, not the goal. Rewriting a piece purely to lift the number tends to flatten the analyst voice that the desk and clients actually pay for. Use the sentence highlights to find specific lines that drift into stock phrasing, rewrite those, and let the headline number land wherever it lands.

Fintech editorial

Authoritative finance, accessible language.

Fintech editorial calibrates against two requirements at once: the substance has to read authoritative to a CFA-curious reader, and the language has to read accessible to a retail user who is opening a brokerage app for the first time. AI drafts collapse into a generic middle that fails both tests.

Neobanks, retail brokerages, robo-advisors, and personal-finance editorial outlets compete on the calibration between substance and accessibility. A piece that reads too academic loses the first-time investor; a piece that reads too breezy loses the reader who already knows what a bid-ask spread is. AI-assisted drafts default toward the middle of that range and read as commodity content to both audiences.

Use the scan on every public-facing fintech editorial piece. The Business tier with five seats and shared history fits an editorial team of two writers, an editor, a fact-checker, and a compliance reviewer; the audit log records who scanned what before sign-off. Marketing copy, landing pages, and customer-education email sequences route through the same loop. Verify regulated claims about returns, risk, and product features against the marketing rule, FINRA Rule 2210, or FCA promotion rules separately.

FAQ

Finance writers frequently ask.

Does an AI detector make my finance writing SEC or FINRA compliant?
No. An AI detector flags prose patterns associated with language models. It does not assess whether a piece meets SEC marketing rule requirements, FINRA Rule 2210 standards for communications with the public, MiFID II investor information obligations, or any other regime. Compliance review by your firm's compliance team or external counsel remains the load-bearing check. TextSight is an adjunct to professional judgment, not a substitute for it. This page does not constitute legal, regulatory, or financial advice.
Will an equity research note get flagged because the structure is conventional?
Sell-side and buy-side research notes share a recognisable structure: thesis, drivers, valuation, key risks, recommendation. The structure alone usually does not push a human-written note over the flag threshold. What pushes a score upward is generic linking phrasing, uniform sentence cadence, and abstract claims with no analyst-specific texture. Rewrite the flagged sentences with channel checks, named comparables, specific KPIs, and your own conviction language. Keep the section structure intact.
Can IR teams paste shareholder letters or 10-K narrative into TextSight?
TextSight does not use uploaded text to train detection models. That said, draft 10-K and 10-Q narrative, pre-release shareholder letters, and unfiled earnings commentary frequently contain material non-public information under SEC Reg FD. Confirm with your IR counsel, disclosure committee, and IT before pasting any non-public draft into a third-party tool. Many IR teams run TextSight on the public-facing version of a letter or on a sanitised draft with non-public specifics removed.
Do SEC, FINRA, or MiFID II rules require AI disclosure on finance materials?
Regulator positions are evolving. The SEC marketing rule, FINRA Rule 2210, and MiFID II investor information obligations govern fair, balanced, and not misleading presentation, substantiation, and risk disclosure, but none currently mandates a blanket AI-use disclosure on every finance communication. Some firms voluntarily disclose AI assistance, some restrict AI in client-facing copy entirely. Confirm your firm's policy with compliance before relying on any general statement. This page does not constitute legal advice.
Which tier fits a research analyst or fintech writer?
Pro at $19.99 a month standard, $14.99 on yearly, is the right fit for a solo sell-side analyst, buy-side researcher, IR writer, or fintech editor shipping five to fifteen deliverables a week. It unlocks unlimited scans, a 10,000 character cap per scan, 90-day scan history, file upload, and the integrated AI rewriter for stubborn passages. Starter at $9.99 works for analysts producing two to four notes a week who want twenty scans a day rather than three.
Which tier fits an IR team, research desk, or fintech editorial team?
Business at $39.99 a month standard, $29.99 on yearly, is the right fit for IR teams, sell-side and buy-side research desks, fintech editorial teams, and asset-manager communications groups scanning fifty or more deliverables a month. It includes five seats with shared history, 100,000 AI rewriter words a month, REST API access for workflow automation, an audit log for the compliance principal, and white-label PDFs. Teams that operate a documented review pipeline usually settle on Business within a quarter.
Does TextSight verify the numbers in my finance writing?
No. The AI detector identifies prose that pattern-matches to language models, not numerical accuracy. AI-assisted finance drafts often carry fabricated figures, mis-cited prints, hallucinated peer multiples, or wrong-direction comparisons that read smoothly. Treat the detector as a prose signal only. Verify every number against your source spreadsheet, the filing, the print, the data vendor, or the management track before publication, regardless of detector score.
Does TextSight share my drafts or train on them?
No on both. Scans are private to your account and we do not share submitted text with anyone. Text submitted for scanning is never used to train the classifier or any other model. This applies the same way on free, Starter, Pro, and Business tiers. Even so, regulated finance workflows should run their own vendor due diligence and confirm the tool fits firm data-handling rules, Reg FD obligations, and any information-barrier controls before pasting confidential drafts.
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Adjunct to professional judgment · No training on your draft · Sentence-level highlights · Five team seats on Business