Short answer
ChatGPT Free is free to use, and OpenAI’s current Free Tier FAQ names GPT-5.6 Luna for Free users. That confirms which model the FAQ identifies; it does not confirm whether GPT-5.5 is accessible through another Free mode. Don’t assume GPT-5.5 access based only on older rollout information. (OpenAI Free Tier FAQ)
GPT-5.5 is available through OpenAI’s API, but API use is metered separately from ChatGPT Free. OpenAI lists standard rates of $5 per million input tokens and $30 per million output tokens, in USD. (OpenAI GPT-5.5 API documentation)
Information checked against OpenAI documentation on November 10, 2026. Availability and limits can change.
What is free in official ChatGPT?
OpenAI says ChatGPT Free is free to use. Its current Free Tier FAQ names GPT-5.6 Luna for Free users and says the default model and available limits can change. The FAQ describes unlimited everyday text chats subject to abuse-prevention safeguards; tools such as file and image uploads and data analysis have separate limits, and ChatGPT notifies users when they reach an applicable limit. The FAQ does not establish whether GPT-5.5 is available to Free users through a different mode. (OpenAI Free Tier FAQ)
Older rollout announcements may describe earlier model availability. For current Free-plan details, use the current FAQ rather than inferring eligibility from an older announcement or a model being described as a default.
What about “GPT-5.5 free” websites?
EaseMate advertises a separate, third-party GPT-5.5-named chat service. Its page claims a 200,000-token free allocation and says users may unlock more after registering or signing in. That is EaseMate’s offer—not an OpenAI ChatGPT Free allowance. The page does not explain how tokens are counted, when the allowance resets or expires, how many additional tokens might be available, or what happens after the allocation is used. It also does not establish that the service’s model routing is identical to using GPT-5.5 through OpenAI. Treat the allowance as the provider’s claim and review its current terms before relying on it. (EaseMate offer)
Practical choice: use official ChatGPT Free for interactive use with the model and limits OpenAI currently provides. Consider a third-party site only if you’re comfortable with its separate account, terms, and unclear allowance details. Neither route makes a third-party token allocation a production API budget.
GPT-5.5 API pricing and a budget example
OpenAI’s API documentation lists the model ID gpt-5.5 and these standard text-token rates:
| API usage | Price per 1 million tokens |
|---|---|
| Input | $5.00 USD |
| Cached input | $0.50 USD |
| Output | $30.00 USD |
API charges are separate from ChatGPT subscriptions. For prompts with more than 272,000 input tokens, OpenAI says the full session is priced at 2× the input rate and 1.5× the output rate. OpenAI also states that GPT-5.5 regional-processing (data-residency) endpoints have a 10% uplift. Tool use may incur additional charges, depending on the tool. (OpenAI GPT-5.5 API documentation)
Example estimate: suppose one API request uses 100,000 uncached input tokens and generates 10,000 output tokens. At the listed standard rates:
- Input: 100,000 ÷ 1,000,000 × $5 = $0.50
- Output: 10,000 ÷ 1,000,000 × $30 = $0.30
- Estimated total: $0.80 per request, before separately billed tools or any applicable regional-processing uplift
At 1,000 requests with the same token use, that would be about $800. This is a worked estimate, not a measured workload; real cost depends on input, cached input, output, tools, and applicable endpoint pricing. (OpenAI GPT-5.5 API documentation)
Which route fits?
- Want no-cost ChatGPT for personal use? Start with ChatGPT Free. OpenAI’s current FAQ names GPT-5.6 Luna for Free users; it does not confirm GPT-5.5 access through another Free mode. Tool limits are separate from everyday text-chat limits. (OpenAI Free Tier FAQ)
- Need GPT-5.5 in software or a production workflow? The OpenAI API documentation lists GPT-5.5 and its token rates. Budget from your expected token usage and account for any applicable tool or regional charges; a ChatGPT subscription or third-party chat offer is not API pricing. (OpenAI GPT-5.5 API documentation)
- Considering a free third-party GPT-5.5 chat? EaseMate advertises an allocation, but its published page leaves important allowance and post-limit terms unclear. Verify those terms with the provider, and don’t treat the offer as official ChatGPT access or production API access. (EaseMate offer)
OpenAI describes GPT-5.5 as a model for complex professional work, including coding, research, and data analysis. That describes intended capability, not a guarantee of accuracy or suitability for an unattended production workflow; test your application against its own requirements. (OpenAI GPT-5.5 API documentation)
Sources
ChatGPT Free Tier FAQ — OpenAI Help Center
GPT 5.5 Free: Try OpenAI's Smartest AI Model Online — EaseMate AI