Is Ox Alpha free? Yes — here's the catch
During the stealth period, every Ox Alpha call returns a cost of $0. It's genuinely free — with a few honest caveats.
Key takeaways
- How it's free
- The catch
- Lifting the limits
How it's free
OpenRouter serves Ox Alpha under the 'Stealth' provider at zero prompt and completion cost during the preview.
The catch
The free pool is shared and rate-limits (HTTP 429) under load. Pricing can change the moment the preview ends.
Lifting the limits
Add a small amount of OpenRouter credit or your own provider key to escape the shared free pool's throttling.
Ox Alpha at a glance
How to try it in 3 steps
1
Open the chat
No signup — the anonymous chat needs no account.
2
Ask your question
Type your task; answers stream with visible reasoning.
3
Go deeper via API
Ready to build? The API guide has copy-paste code.
Frequently asked questions
Will Ox Alpha stay free?
No promises. Stealth pricing is temporary; treat $0 as a preview perk, not a plan.
Why do I get rate-limited?
The free pool is shared. Retry with backoff or add your own key.
Related
The Ox Alpha API →Ox Alpha review: what a stealth model gets right →Ox Alpha's 1M-token context window →Free AI chat, no login →AI chat online, free →Ox Alpha for coding →
Use OX Alpha free
Streaming chat with visible reasoning — no signup, $0 in preview.