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# Anthropic's revenue from existing customers has grown about nine-fold
- URL: https://thecoverwire.com/ai-for-insurance-leaders-anthropic-customers-spend-nine-times-more/
- Published: 2026-10-30T14:58:48.000Z
- Updated: 2026-11-02T11:45:00.000Z
- Description: The vendor metric covers all Anthropic's paying customers, not insurers, but it suggests why AI budgets set on a pilot may understate the bill.
- Author: CoverWire
- Tags: Analysis, AI, #desk-markets

**Analysis** | AI for insurance leaders, a weekly CoverWire briefing

Anthropic's [registration statement](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com), filed in the US on 26 October, puts its net revenue retention at about 900% as of 30 September. On the filing's definition, customers that paid Anthropic at least $1 in the three months to 30 September 2025, excluding consumer Claude Pro and Max subscribers, brought in about nine times as much revenue in the same three months of 2026.

The figure covers Anthropic's paying customers across all sectors and countries, net of any that cut back or left. It is not a measure of insurers' spending, and Anthropic says the metric comes from its internal systems and has not been independently verified.

CoverWire's analysis is that the figure is a warning for insurers that budget for AI on the cost of a pilot, rather than proof that they have under-budgeted. Other explanations fit the same number: customers adding new uses such as coding agents, moving work from other suppliers, or starting from a very low base a year earlier, since $1 of revenue was enough to count.

With that caveat, the filing and the regulators' latest survey point to three issues for insurers. Bills grow with use, not with seats. More of the AI that UK financial firms run is bought in from a small group of suppliers. And the controls supervisors expect were built for systems firms could test themselves.

## Why pilot budgets may understate the bill

The filing shows where the money goes. The heaviest 5% of enterprise users of its coding tool [spent](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com) about 20 times the average of under $75 a month for enterprise users who did not use it, in the three months to 30 September.

If insurers' own usage follows that pattern, a per-seat budget set during a trial would say little about the run-rate once heavy users arrive. Anthropic also [says](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com) its newer models are cheaper per task. On its own figures, cheaper tasks have gone hand in hand with a much bigger total bill.

Insurers are not starting from scratch. The Bank of England and Financial Conduct Authority's [2026 survey](https://www.bankofengland.co.uk/report/2026/artificial-intelligence-in-uk-financial-services-2026?ref=thecoverwire.com), published the same day as the filing, found 93% of responding insurers using AI.

## Financial firms are buying more of their AI from fewer suppliers

The survey found that third parties now supply more than half of the AI systems firms rate as high materiality, [up from](https://www.bankofengland.co.uk/report/2026/artificial-intelligence-in-uk-financial-services-2026?ref=thecoverwire.com) about a third in 2024\. Those systems sit with a handful of model and cloud providers, and Anthropic's [filing](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com) says it depends in turn on Amazon, Google and Microsoft for computing capacity.

Few firms could walk away quickly. Only about a third of high-criticality cloud relationships that would be hard to replace had a tested exit plan, the [survey](https://www.bankofengland.co.uk/report/2026/artificial-intelligence-in-uk-financial-services-2026?ref=thecoverwire.com) found. The FCA's [good practice examples](https://www.fca.org.uk/publications/good-poor-practice/ai-financial-services?ref=thecoverwire.com), published on 19 October, include designing systems so a firm does not depend on a single model provider.

## Vendor assurance is carrying too much weight

Four in five firms [relied](https://www.bankofengland.co.uk/report/2026/artificial-intelligence-in-uk-financial-services-2026?ref=thecoverwire.com) on vendor assurance and contracts to understand their high-materiality bought-in AI systems. The FCA [lists](https://www.fca.org.uk/publications/good-poor-practice/ai-financial-services?ref=thecoverwire.com) overreliance on untested vendor assurances as an area for improvement and says firms remain accountable for AI services they outsource, although it says the examples create no new requirements.

That leaves boards answerable for systems they cannot fully inspect, and the problem runs both ways for insurers. Anthropic's [filing](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com) warns that the insurance market for AI-specific risks is "nascent and evolving" and that it may be unable to buy some cover on commercially reasonable terms. Insurers are adopting AI while also being the market its makers expect to struggle to cover it.

*Correction, 2 November 2026: an earlier version said Anthropic's customers spend about nine times what they did a year ago. The metric compares three-month revenue from customers that were already paying a year earlier, excluding Claude Pro and Max subscribers. This version defines the metric, makes clear it is not specific to insurers, and labels the implications as analysis.*

Related coverage: [Anthropic warns insurers may lack capacity for a catastrophic AI loss](https://thecoverwire.com/anthropic-s1-insurers-lack-capacity-catastrophic-ai-loss/) and [Bank of England and FCA survey finds 93% of responding insurers use AI](https://thecoverwire.com/boe-fca-survey-93-percent-insurers-use-ai/).

## What to watch

- **2 December 2026:** EU AI Act duties on providers to mark AI-generated content apply to systems already on the market before 2 August 2026, after the [AI Omnibus](https://www.europarl.europa.eu/legislative-train/theme-internal-market-and-consumer-protection-imco/file-digital-omnibus-on-ai?ref=thecoverwire.com) delay.
- **18 March 2027:** the FCA's [operational incident reporting](https://www.fca.org.uk/firms/operational-resilience/reporting-operational-incidents?ref=thecoverwire.com) and [material third-party arrangement reporting](https://www.fca.org.uk/firms/outsourcing-and-operational-resilience/reporting-material-third-party-arrangements?ref=thecoverwire.com) rules take effect, including for Solvency II firms.
- **2 December 2027:** EU AI Act obligations apply to stand-alone high-risk systems, including AI used for risk assessment and pricing in life and health insurance, according to the [European Commission](https://digital-strategy.ec.europa.eu/en/policies/regulatory-framework-ai?ref=thecoverwire.com) and [EIOPA](https://www.eiopa.europa.eu/document/download/b67ede29-8217-46df-bb46-526e004d34bb%5Fen?filename=Letter+to+EU+institutions+on+AI+Act+and+EU+Insurance+legislation+proposal+for+clarifying+application+of+the+AI+Act.pdf&ref=thecoverwire.com).

## Sources

- [Anthropic PBC, Form S-1, 26 Oct 2026](https://www.sec.gov/Archives/edgar/data/2130357/000162828026067168/anthropicpbc-sx1.htm?ref=thecoverwire.com)
- [Bank of England and FCA, Artificial intelligence in UK financial services 2026, 26 Oct 2026](https://www.bankofengland.co.uk/report/2026/artificial-intelligence-in-uk-financial-services-2026?ref=thecoverwire.com)
- [FCA, AI in financial services: good practice and areas for improvement, 19 Oct 2026](https://www.fca.org.uk/publications/good-poor-practice/ai-financial-services?ref=thecoverwire.com)
- [FCA, reporting operational incidents](https://www.fca.org.uk/firms/operational-resilience/reporting-operational-incidents?ref=thecoverwire.com)
- [FCA, reporting material third-party arrangements](https://www.fca.org.uk/firms/outsourcing-and-operational-resilience/reporting-material-third-party-arrangements?ref=thecoverwire.com)
- [European Parliament, Digital omnibus on AI](https://www.europarl.europa.eu/legislative-train/theme-internal-market-and-consumer-protection-imco/file-digital-omnibus-on-ai?ref=thecoverwire.com)
- [European Commission, AI Act](https://digital-strategy.ec.europa.eu/en/policies/regulatory-framework-ai?ref=thecoverwire.com)