Aion 3.0 by Aion Labs

Sign up at Aion Labs (no card). The free tier is 15 requests a minute, 20,000 tokens a minute and 20,000 tokens a day, shared across the account.

Access
Free API tier
Free limits
15 RPM · 20K TPM · 20K tokens/day
Modality
text
Credit card
Not required
Commercial use
Unclear, verify
Context window
131,072 tokens
Rate limit
15 RPM · 20,000 TPM · 20,000 TPD
Model ID
aion-labs/aion-3.0
Base URL
https://api.aionlabs.ai/v1
Checked
Nov 11, 2026

Quickstart

curl https://api.aionlabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $KEY" \
  -d '{"model":"aion-labs/aion-3.0","messages":[{"role":"user","content":"hi"}]}'

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Frequently asked

Is Aion 3.0 free?

Yes. Aion Labs offers it as Free API tier with these limits: 15 RPM · 20K TPM · 20K tokens/day. No credit card is required.

Can I use Aion 3.0 commercially?

Commercial terms are not clearly documented. Check the provider's current terms before shipping.

How do I start using Aion 3.0?

Get a free API key from the provider dashboard. Set the base URL to https://api.aionlabs.ai/v1 and the model to aion-labs/aion-3.0. Sign up at Aion Labs (no card). The free tier is 15 requests a minute, 20,000 tokens a minute and 20,000 tokens a day, shared across the account.

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