OpenAI Codex vs Sourcegraph Cody: Coding Agents Comparison

OpenAI Codex is a cloud-based autonomous coding agent that runs in a sandboxed environment. Built on GPT-5.3-Codex, it can read codebases, write and edit code across multiple files, run tests, and submit pull requests from natural language task descriptions. Codex operates asynchronously, handling tasks in parallel while developers focus on other work.

The product is available through ChatGPT subscriptions (Plus at $20/month, Pro at $200/month) and via the API using codex-mini-latest at $1.50/1M input tokens and $6.00/1M output tokens. Codex supports both cloud sandbox and local terminal execution modes.

OpenAI was founded in 2015 and is headquartered in San Francisco. The company is valued at approximately $500-730B and is preparing for an IPO that could value it at up to $1 trillion.

Sourcegraph Cody is an AI coding assistant that provides intelligent code completion, chat, and custom prompts within popular IDEs. The free plan offers unlimited autocompletion with 200 chats/prompts monthly. Cody Pro at USD 9/month provides unlimited autocompletion and increased chat limits. Enterprise at USD 59/user/month adds SSO, BYOK, and custom deployment. Important note: Cody Pro and Free will not be available for new signups starting June 25, 2025, with existing users losing access July 23, 2025. Sourcegraph is transitioning to Amp, their next-generation AI coding platform, though Enterprise customers remain unaffected by these changes.