CGI and OpenAI empower enterprises to unlock and accelerate human potential with Codex

Stock Market Symbols GIB (NYSE) GIB.A (TSX) cgi.com/newsroom Expanded global alliance will enable clients to move from ideas to outcomes faster than ever before, helping to transform the future of work MONTRÉAL, April 21, 2026 /PRNewswire/ - CGI (NYSE: GIB) (TSX: GIB.A), one of the largest independent IT and business consulting services firms in the world, today announced a strategic expansion of its global partnership with OpenAI, focused on Codex. The program will help organizations put the power of AI agents into the hands of people in every role so they can quickly design, build and manage digital solutions using natural language.