Large IT services and consulting firms are increasingly moving away from relying solely on popular coding assistants such as GitHub Copilot, Claude Code and OpenAI Codex.
Instead, they are building proprietary AI engineering platforms that sit on top of multiple LLMs such as GPT, Claude, Gemini, Llama and Mistral. This enables firms to add enterprise governance, security, observability and even optimise token costs by right model selection.