New data from AI benchmarking and intelligence platform Evident suggests that many of the world’s largest banks are reducing their reliance on OpenAI as their primary large language model provider.
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The Evident Use Case Tracker captures all publicly announced AI use cases across the 50 banks tracked in the Evident AI Index, including references to third-party AI vendors.
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.
“Since the Gen AI boom began three years ago, banks have been the bellwether for enterprise AI adoption,” says Alexandra Mousavizadeh, co-founder and CEO of Evident. “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, 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. “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.”