United KingdomFinance and insurance2025 – ongoingNatWest Group
AI-assisted software development
NatWest reported that AI wrote about 35% of its code
Problem
NatWest sought to increase engineering productivity while developing its banking technology.
Approach
The bank expanded AI assistance across its coding workforce. Its full-year results presentation reported AI-assisted engineering at scale, alongside separate trials of agentic development.
Results
~35%code written by AI, reported by NatWest
>12,000coders in the AI-assisted engineering workforce, reported by NatWest
Takeaway
The share of code written by AI did not measure the same thing as engineering time saved.
Categories
- Size
- Large enterprise
- Industry
- Finance and insurance
- Business function
- IT and R&D
- Innovation type
- Process innovation
- AI technology
- Generative AI
- Adoption
- Off-the-shelf tool or platform
- Evidence
- Company's own claim
Sources
Source summaries
[1]NatWest Group13 Feb 2026
NatWest reported more than 12,000 coders using AI assistance and approximately 35% of code written by AI. It distinguished widespread AI assistance from separate agentic-development pilots.
Full details are in the original sources.
Added 1 Nov 2026 · Updated 1 Nov 2026