Terms of use
Last updated 2026-10-09. By using haikuvsluna.com you agree to these terms.
Information only
The comparisons, prices and calculator results are estimates provided for information, based on figures the vendors publish (verified 2026-10-09). Prices and models change. Confirm current pricing with Anthropic or OpenAI before making decisions. The site is provided "as is", without warranties of any kind.
No affiliation
haikuvsluna.com is independent and not affiliated with, endorsed by or sponsored by Anthropic or OpenAI. Claude and GPT are trademarks of their respective owners and are used here only to identify the products being compared.
Referral links and sponsorship
Some "Get API" buttons may be referral links that earn the site a commission at no cost to you. Sponsored placements are labelled "Sponsored" and their links carry rel="sponsored". Neither affects the numbers or recommendations on the site.
The playground
The playground sends your prompt to the selected models through OpenRouter and shows the responses. Free runs are limited per day and may be paused at any time. You must not use it for anything unlawful, to generate content that violates Anthropic's or OpenAI's usage policies, or to overload the service. Model availability depends on the providers and may be restricted in some regions. Prompts are not stored by this site; see the privacy page.
If you add your own OpenRouter key, you are responsible for its use and for any charges on your OpenRouter account. The key stays in your browser and is passed through only with your own requests.
Liability
To the extent the law allows, the site and its operator are not liable for any loss arising from reliance on its content or from use of the playground, including API charges you incur.
Changes and contact
These terms may change; the date above shows the latest version. Questions: [email protected].