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OpenAI Codex (ChatGPT plans) vs Replit Agent pricing (Oct 2026)
OpenAI Codex (ChatGPT plans) starts at $8/mo (Go), Replit Agent starts at $20/mo (Core).
Last updated Oct 16, 2026
Price
Cheapest: $8/mo — Go
- Free: Free only
- Go: $8/mo
- Plus: $20/mo
- Pro: $100/mo
- Business: $25/mo
- API key: Custom pricing
Cheapest: $20/mo — Core
- Core: $20/mo
- Pro: $100/mo
- Enterprise: Custom pricing
Annual price
- Free: Free only
- Go: Unverified
- Plus: Unverified
- Pro: Unverified
- Business: Unverified
- API key: Custom pricing
- Core: $18/mo
- Pro: $90/mo
- Enterprise: Custom pricing
Included usage
- Free: GPT-6 Luna, standard speed, desktop app
- Go: GPT-6 Luna
- Plus: ~15-160 local msgs/5h on GPT-6.1 Sol
- Pro: No 5-hour limit; tiers $100/$200/$500
- Business: Unverified
- API key: Unverified
- Core: $20 credits for models; Free Mode chat
- Pro: $100 credits; 10 parallel agents; higher tiers up to $2,000/mo
- Enterprise: Unverified
Overage
- Free: Free only
- Go: Unverified
- Plus: Buy ChatGPT credits
- Pro: Buy credits
- Business: Workspace credits
- API key: API pricing
- Core: Unverified
- Pro: Unverified
- Enterprise: Custom pricing
Free tier
Yes
Up to 30 hours of chat on Free Mode, Up to 60 projects on Free Mode
FAQ
Which is cheaper, OpenAI Codex (ChatGPT plans) or Replit Agent?
OpenAI Codex (ChatGPT plans) starts at $8/mo (Go); Replit Agent starts at $20/mo (Core). OpenAI Codex (ChatGPT plans) has the cheaper starting paid plan.
Do OpenAI Codex (ChatGPT plans) and Replit Agent have free plans?
OpenAI Codex (ChatGPT plans): yes. Replit Agent: yes.