A agentindex
Comparison

Cline vs OpenAI Codex

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

Cline

Autonomous coding agent inside VS Code, with approval gates.

  • + Approval gates make autonomous edits safe
  • + Runs inside the editor you already use
  • − VS Code only
  • − Token-heavy on large tasks

OpenAI Codex

OpenAI's open-source agentic coding CLI.

  • + Open-source CLI
  • + Sandboxed command execution
  • − OpenAI models only
  • − Newer, less battle-tested than incumbents
Spec Cline OpenAI Codex
Category coding-agent coding-agent
License Apache-2.0 Apache-2.0
Open source Yes Yes
Self-hostable Yes No
MCP support Yes Yes
Pricing free usage
Starting price BYOK usage cost Pay per token (OpenAI API)
Models claude, gpt, gemini, byok gpt
Languages typescript multi
GitHub stars 63.9k 93.6k
Last activity 2026-06-25 2026-06-25