codex-1
Benefit
+1.16
Harm
0.00
Net Good
1.16
Verified benefit
0.00
History
Cumulative score
- Benefit
- Harm
- Net
Release
Status released. First dated 16 May 2025.
Event timeline
Benefit8 Sep 2026
1Password measures a 21% engineering-productivity gain with Codex
On 8 September 2026 OpenAI published a 1Password case study reporting a 20.9% productivity gain and 10.9% shorter median pull-request cycle time for the core Codex user cohort. 1Password’s own model attributed about 40% of that gain to Codex.
Economics & ProductivityprovisionalTier 1 Useful+0.04
Benefit16 May 2025
OpenAI launches Codex, a cloud software-engineering agent, in ChatGPT
On 16 May 2025 OpenAI released a research preview of Codex, a cloud agent powered by codex-1 (an o3 variant trained for software engineering) that writes features, runs tests, and opens pull requests in a sandboxed repo.
Computer ScienceprovisionalTier 3 Major+1.11