New data tracking AI use cases across 50 of the world’s largest banks shows OpenAI’s share of disclosed deployments has fallen from around half to just one-third over the past 18 months. This means that OpenAI I no longer the primary large language model provider for the banking sector.
With banks often acting as a bellwether for enterprise tech adoption, the shift could signal growing challenges for OpenAI’s position in banking as we head into 2026
These data are based on the Evident Use Case Tracker, which captures all publicly announced AI use cases across the 50 banks tracked in the Evident AI Index, including references to third-party AI vendors.
A different story in 2024
Eighteen months ago, OpenAI provided the underlying technology for roughly half of the banking AI use cases that disclosed vendor information. Evident’s latest analysis shows that by the end of 2025, OpenAI’s share had fallen to just one-third, with banks increasingly developing and deploying use cases built on alternative providers such as Anthropic and Google.
Evident is an intelligence and benchmarking platform for AI adoption in financial services.
“Since the Gen AI boom began three years ago, banks have been the bellwether for enterprise AI adoption,” Alexandra Mousavizadeh, Co-Founder and CEO of Evident has told Digital Journal. “The way they are behaving now could signal mounting challenges for OpenAI’s position in banking in 2026. Our data shows a marked shift away from OpenAI’s LLMs and towards a broader range of providers.”
According to Evident’s analysis, coding is one of the few banking AI use cases where more than half of deployments demonstrate tangible return on investment. While Anthropic is consistently ranked best-in-class for code generation and review (Anthropic’s flagship product line is the “Claude” series of large language models). In addition, Google has leveraged its existing cloud relationships to make enterprise deployment and system integration easier. Last month, BNY demonstrated this approach by integrating Gemini Enterprise with its internal AI platform, Eliza.
“It’s no secret that many leading banks favour model agnosticism, which could account for some of the shift away from OpenAI,” Mousavizadeh adds.
She explains: “However, many of the bankers we’ve spoken to in recent months have told us that they’re impressed by what Anthropic and Google are delivering. OpenAI still boasts successful partnerships with banks like BBVA and Morgan Stanley and retains a strong footprint in banking, so it will be interesting to see how the AI giant evolves its enterprise offering in the coming months.”
