# Best AI coding plan under $20

Verified 2026-10-14. Every figure is copied from the official vendor page; unknown means the vendor does not publish it.

Every individual paid plan from Cursor, Claude Code, Codex, Copilot and Devin Desktop that lists a price of $20 a month or less. We rank by what the vendor gives you, not by our opinion.

## Highest plan per tool at or under $20

- Claude Code: Pro at $20/mo (At least 5x Free per 5-hour session; exact tokens unknown)
- OpenAI Codex: Plus at $20/mo (Expanded Codex; 5-hour message estimates by model)
- Windsurf (now Devin Desktop): Pro at $20/mo (Increased quotas, all frontier models; exact quota unknown)
- GitHub Copilot: Pro at $10/mo ($15/mo of AI credits ($10 base + $5 flex); unlimited completions)
- Cursor: Plus at $8/mo (Basic shared pool; Grok models only)


## Every paid plan at or under $20

| Tool | Plan | Price | Usage | Source |
|---|---|---|---|---|
| Claude Code | Pro | $20/mo | At least 5x Free per 5-hour session; exact tokens unknown | https://claude.com/pricing |
| OpenAI Codex | Plus | $20/mo | Expanded Codex; 5-hour message estimates by model | https://learn.chatgpt.com/docs/pricing |
| Windsurf (now Devin Desktop) | Pro | $20/mo | Increased quotas, all frontier models; exact quota unknown | https://devin.ai/pricing |
| GitHub Copilot | Pro | $10/mo | $15/mo of AI credits ($10 base + $5 flex); unlimited completions | https://github.com/features/copilot/plans |
| Cursor | Plus | $8/mo | Basic shared pool; Grok models only | https://cursor.com/pricing |
| OpenAI Codex | Go | $8/mo | Limited Codex; may include ads | https://learn.chatgpt.com/docs/pricing |

## Notes

- Claude Pro is $20 billed monthly or $17 a month billed annually.


## How limits reset

- Claude Code: Rolling 5-hour session window plus weekly limits on paid plans; Claude Code shares the pool with Claude chat; no fixed message count published; optional usage credits at API rates.
- OpenAI Codex: Included in ChatGPT plans. Plus: estimated local messages per 5-hour window (e.g. GPT-6.1 Sol 15-160, GPT-6 Astra 5-45), weekly limits may apply. Pro: no 5-hour limit currently. Credits extend usage.
- Windsurf (now Devin Desktop): Quota allowance refreshing daily and weekly; extra usage at API pricing. windsurf.com/pricing now redirects to devin.ai/pricing (checked 2026-10-14 18:15 CT).
- GitHub Copilot: Monthly GitHub AI Credits (1 credit = $0.01) = base + variable flex allotment; resets monthly; completions unlimited on paid plans; overage at $0.01/credit with a budget.
- Cursor: Shared AI usage pool across Cursor and Grok; allowance refreshes weekly; third-party models billed separately at API list price; top-offs available.


## FAQ

### Which AI coding plans cost $20 a month or less?

Claude Code: Pro at $20/mo (At least 5x Free per 5-hour session; exact tokens unknown); OpenAI Codex: Plus at $20/mo (Expanded Codex; 5-hour message estimates by model); Windsurf (now Devin Desktop): Pro at $20/mo (Increased quotas, all frontier models; exact quota unknown); GitHub Copilot: Pro at $10/mo ($15/mo of AI credits ($10 base + $5 flex); unlimited completions); Cursor: Plus at $8/mo (Basic shared pool; Grok models only). Prices verified 2026-10-14 on official vendor pages.

### How many paid AI coding plans cost $20 or less?

6 paid individual plans across 5 tools, counting only prices the vendor publishes.

### Do these prices include tax or annual discounts?

They are list prices per month billed monthly, as shown by each vendor. Claude Pro is the only plan here where we record an annual price ($17 a month).


## Related

- [Best AI coding plan under $10](https://whichaiplan.dev/best-ai-coding-plan-under-10/)
- [Best AI coding plan under $100](https://whichaiplan.dev/best-ai-coding-plan-under-100/)
- [Best AI coding plan under $200](https://whichaiplan.dev/best-ai-coding-plan-under-200/)
- [Full comparison of all tools](https://whichaiplan.dev/compare/)
- [Price changelog](https://whichaiplan.dev/changelog/)