Codex vs Replit Agent
Direct comparison of Codex (from OpenAI) and Replit Agent (from Replit). Want a 3- or 4-way comparison? Open the multi-agent tool →
| Codex OpenAI | Replit Agent Replit | |
|---|---|---|
| Overview | ||
| Vendor | OpenAI | Replit |
| Category | coding | coding |
| Release date | — | 2026-03-11 |
| Source | proprietary | proprietary |
| License | — | — |
| Pricing | Included with ChatGPT Plus/Pro | Included with Replit Core $25/mo |
| Base models | ||
| Capabilities | terminalfile_ioshell_execcloud_runtime | cloud_idedeployparallel_tasksmerge_conflicts |
| Capability | ||
| gpt.buzz Index | 70.0 | 18.4 |
| SWE-bench Verified | 85.0% | 52.0% |
| SWE-bench Pro | 56.8% | — |
| Terminal-Bench 2.0 | 77.3% | — |
| GAIA | — | — |
| WebArena | — | — |
| Adoption | ||
| OpenRouter · daily | — | — |
| OpenRouter · cumulative | — | — |
| GitHub stars | — | — |
| Links | ||
| Links | ||
More on each
Full agent profiles — Codex / Replit Agent
Or browse the full agent directory / composite leaderboard.