TelecommunicationsSoftware Engineering

How Cisco Saves 1,500+ Engineering Hours Monthly with OpenAI Codex

Cisco embedded OpenAI Codex into production engineering workflows, achieving 20% faster builds, 10-15x defect resolution throughput, and saving 1,500+ engineering hours per month.

Impact

1,500+

Engineering Hours Saved Monthly

~20%

Build Time Reduction

10-15x increase

Defect Resolution Throughput

Weeks to days

Framework Migration Speed

Challenge

Needed to integrate AI into complex, mission-critical software systems with stringent security, compliance, and governance requirements.

Solution

Embedded OpenAI Codex into production pipelines for multi-repository systems, C/C++ codebases, and autonomous compile-test-fix loops.

Tools & Technologies

What Leaders Say

The biggest gains came when we stopped thinking about Codex as a tool and started treating it as part of the team.

Ryan Brady, Principal Engineer, Cisco Splunk Group
Get the full context.

Sign up to read complete case studies, access detailed metrics, and unlock all use cases.

Full Story

Cisco needed to integrate advanced AI capabilities into complex, mission-critical software systems operating in demanding production environments with stringent security, compliance, and governance requirements.

Cisco integrated OpenAI Codex directly into production engineering workflows, embedding it into existing development pipelines to handle multi-repository systems, C/C++-heavy codebases, and autonomous compile-test-fix loops.

The results: approximately 20% reduction in build times, 1,500+ engineering hours saved per month across global environments, 10-15x increase in defect resolution throughput, and framework migrations compressed from weeks to days.

Similar Cases

V
Vodafone

Vodafone, a telecommunications company serving over 340 million customers, built two AI assistants using LangChain and LangGraph to support engineers managing data centers across Europe. The Insight Engine converts natural language queries into SQL for real-time performance analysis, while Enigma retrieves technical documentation from SharePoint. Together they have reduced time-to-insight for infrastructure issues and eliminated engineers’ dependence on custom dashboards.

TelecommunicationsLLangChainLLangGraph
A
AT&T
71
genai_solutions_deployed

AT&T built a multi-agent AI platform on Microsoft Azure to handle millions of daily interactions across customer care and internal workflows. The system processes roughly 9 billion tokens per day, reduced customer care resolution time by 33%, and serves over 100,000 employees across 71 generative AI solutions.

TelecommunicationsAOAzure OpenAI
VU
Vodafone UK
50%
reduction in copywriting time

Vodafone UK, one of Britain’s largest mobile operators, and VOIS, Vodafone’s shared services arm, deployed Writer’s enterprise AI platform to transform their marketing operations at scale. The implementation replaced manual content production workflows with AI agents that handle banner creation, campaign copywriting, and generative engine optimization. Within six months, Vodafone UK eliminated 20 hours per week of manual work and saw 2x engagement from AI-optimized campaigns, while VOIS cut copywriting time by half.

TelecommunicationsWWriter
DT
Deutsche Telekom
~5 hours
hours reclaimed per attorney weekly

Deutsche Telekom deployed Harvey across its Legal, Compliance, and Data Protection departments, enabling attorneys to reclaim approximately 5 hours per week through AI-powered litigation support, regulatory research, and tender generation.

TelecommunicationsHHarvey
SC
SoftBank Corp.
4,500
fte-equivalents saved annually

SoftBank Corp. is Japan’s largest telecommunications operator and a global technology investor with ambitions far beyond carrier services. Facing a bottleneck in scaling automation beyond early RPA deployments, SoftBank launched the ‘Digital Worker 4,000 Project’—a top-management-led initiative to automate cross-functional business processes using Automation Anywhere alongside Salesforce, Office365, and Google integrations. The effort redirected 4,500 FTE-equivalents of annual labor toward value-added work and generated 52,000 generative AI improvement proposals from employees in just ten days.

TelecommunicationsAAAutomation Anywhere
R
Rakuten
~50% reduction
mean time to recovery

Rakuten integrated OpenAI Codex into incident response, CI/CD pipelines, and autonomous development — cutting mean time to recovery by 50% and compressing quarter-long projects into weeks.

RetailOCOpenAI Codex
D
Datadog
~22%
incidents preventable by ai

Datadog integrated OpenAI Codex into live PR review workflows, catching 22% of incidents that passed human review and enabling 1,000+ engineers with AI-powered system-level code analysis.

TechnologyOCOpenAI Codex