Deal Snapshot
| Detail | Info |
|---|---|
| Product | Cursor AI Code Editor with GPT-5.1-Codex-Max integration |
| Offer | Unlimited free access to GPT-5.1-Codex-Max model |
| Price | Included with Cursor Pro ($20/month) or higher |
| Savings | Zero credit consumption for premium model usage |
| Code | Applied automatically |
| Expires | December 11, 2025 |
| Link | Get Cursor |
The Offer
Cursor just flipped the switch on something big: unlimited free access to OpenAI's GPT-5.1-Codex-Max, the newest frontier coding model, available to subscribers through December 11.
For context, GPT-5.1-Codex-Max is OpenAI's latest frontier model trained specifically for agentic coding. It handles multi-file edits, automated testing, and long-horizon coding tasks that would burn through your credits fast under normal circumstances. The model achieved approximately 74.5% on the SWE-bench Verified benchmark and supports 200,000-token context windows for tackling large codebases and monorepos.
This matters because Cursor Pro's $20/month plan normally gives you a credit pool for premium models. Heavy usage of frontier models like this can drain that pool quickly. During this promotion, GPT-5.1-Codex-Max runs free, meaning your credits stay untouched for other models or carry over.
Worth noting: This offer appears limited to paid Cursor users. Some free-tier users have reported seeing "OpenAI's latest models are currently only available to paid users" when attempting to access the model despite the promotional messaging.
The Verdict: If you're already on Cursor Pro, this is a no-brainer week to stress-test the most powerful coding model available. If you've been on the fence about upgrading from free, this is your trial window.
What You Get
- Unlimited access to GPT-5.1-Codex-Max through December 11
- Full agentic coding capabilities: autonomous file reading, editing, and command execution
- 200K token context window for large codebase navigation
- Reasoning traces preserved for better multi-step task performance
- Optimized Cursor agent harness built in partnership with OpenAI
- Automatic linting integration and error correction
Worth It If
- You're a Cursor Pro subscriber who wants to max out premium model usage this week
- You're considering upgrading from free and want to test frontier model capabilities
- You work with complex, multi-file codebases that benefit from long context windows
Skip It If
- You're on Cursor's free tier (promotion reportedly requires paid subscription)
- You're satisfied with Auto mode or lighter models for your workflow
- You're not actively coding this week and won't benefit from the limited window