AI ToolsAug 18, 2026, 7:00 AM

Asana cleared 5 years of engineering work in 2 weeks with Codex

30-second summary

Asana replaced a legacy testing system in two weeks using OpenAI Codex, a task estimated to take five years, at a cost of about $12,000.

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Asana cleared 5 years of engineering work in 2 weeks with Codex
Key takeaways
  • Asana replaced a legacy testing system in 2 weeks using OpenAI Codex, a task estimated to take 5 years.
  • The project cost approximately $12,000, demonstrating significant cost savings.
  • AI-assisted coding tools like Codex can dramatically accelerate enterprise software modernization.
  • The case study highlights the potential for AI to reduce bottlenecks in repetitive or rule-based engineering tasks.
Full story

Asana, the workflow management platform, revealed it used OpenAI's Codex to overhaul an outdated testing system in just two weeks. The project, which was initially estimated to require five years of engineering work, was completed at a fraction of the expected cost and time. The company spent approximately $12,000 on the effort, demonstrating a dramatic acceleration in development cycles through AI-assisted coding.

This case study highlights the potential of AI tools like Codex to streamline legacy system modernization, a common challenge for large enterprises. By automating parts of the testing and refactoring process, Asana was able to bypass traditional bottlenecks, reducing both time and financial investment. The success underscores the growing role of AI in enterprise software development, particularly for tasks that are repetitive or rule-based.

While the exact technical details of the implementation remain proprietary, the announcement serves as a real-world example of how AI can augment human engineers. It also raises questions about the long-term impact on engineering roles and the balance between automation and human oversight in critical infrastructure projects.

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Why this matters
Developers

Shows how AI coding tools can drastically reduce development time for legacy system updates.

Businesses

Demonstrates potential cost savings and efficiency gains in enterprise software projects.

Everyone

Illustrates the growing role of AI in transforming traditional engineering workflows.

Glossary
Codex
An AI model developed by OpenAI designed to assist with coding tasks, including code generation and refactoring.
Legacy system
An outdated computing system, software, or application that remains in use despite being old or obsolete.
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