Free AI API with no key
Send JSON directly to the chat-completions endpoint. There is no authorization header, dashboard, account approval, or secret to manage.
No signup · No key · No card · No token bill
Free AI that feels effectively unlimited in real use
If you are searching for a free unlimited AI API, the honest answer is that every dependable service has practical capacity limits. Vireonix gets unusually close for interactive use because output streams at usable model speeds and Auto selects the best available model for each task. Long sessions continue without an account, a bill, or constant context resets.
High-limit, not literally unlimited. Model burn rates and hourly per-IP fair-use budgets apply.
Why the AI can feel effectively unlimited
Vireonix does not hide a small one-time trial behind the word “free.” There are no starter credits to exhaust and no subscription prompt after a few messages. More importantly, real interactive use includes generation time, reading, follow-up decisions, editing, and long conversations handled by the context window of the routed model. Most people do not generate continuously, so the experience can be effectively unlimited even though technical limits exist.
The precise claim: Vireonix can feel effectively unlimited for ordinary
interactive sessions. It is not technically unlimited. Sustained concurrent automation can
exhaust an hourly budget and receive HTTP 429 responses.
| Model choice | Published input/hour | Published output/hour | Context |
|---|---|---|---|
| Auto | 20,000,000 | 200,000 | Up to 1M tokens |
Auto uses a 1x burn rate and selects a model based on task complexity, coding needs, Q&A quality, and speed. Published capacity can change to protect availability; see the current rate-limit documentation.
Why use this free AI API?
OpenAI-compatible requests
Use familiar message roles, the Auto model, JSON responses, server-sent event streaming, and tool declarations.
Automatic routing for every workload
Auto chooses from MiniMax, Nemotron, GLM, Gemma, Llama, Qwen, GPT-OSS, and selected GPT models to find the best fit for each task.
Transparent capacity
Inspect remaining input and output percentages, the hourly reset time, and model burn rates instead of guessing when a hidden quota will end.
Start using free AI in one request
This request works without a bearer token or any other authentication credential.
curl https://vireonix.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-d '{
"model": "auto",
"messages": [
{ "role": "user", "content": "Build a launch checklist for my app." }
]
}'What can you build with high-limit free AI?
AI chat
Browser chat, community bots, tutors, and internal assistants.
Coding tools
Code explanations, transformations, tests, and development helpers.
Content workflows
Drafts, summaries, classifications, extraction, and structured output.
Commercial AI products
Paid applications and resold inference credits under the reseller terms.
Running an AI credit storefront or API proxy? See the AI token reseller guide.
Free unlimited AI FAQ
Is there a completely free unlimited AI API?
Vireonix is free for ordinary access but not literally unlimited. It can feel effectively unlimited during normal interactive use because responses stream at usable model speeds and people spend time reading and iterating rather than generating continuously. Sustained concurrent automation can still reach hourly limits.
Can I use the free AI API without an API key?
Yes. Vireonix requires no account, API key, authorization header, credit card, or trial activation.
What happens when I reach the hourly AI token limit?
The API returns HTTP 429. Remaining capacity and reset time are available from response headers and the /api/limits endpoint. The per-IP budget refreshes hourly.
Can I use Vireonix for commercial applications?
Yes. You may build commercial applications and may resell metered AI inference access under the Terms of Service. Rate limits, acceptable-use rules, and privacy disclosures still apply.
Does free mean my prompts are private?
No. Prompts, outputs, and related chat traces may be retained and used for model training and improvement. Do not submit secrets or sensitive data; review the Privacy Policy.
Is this a free trial?
No. There is no one-time trial credit or scheduled conversion to billing. Vireonix may still change limits, models, or availability as described in the terms.
Try high-limit AI for free
No signup flow. Open chat or send your first API request now.