Aion Labs
permanent free · model_vendor · verification: partially_verified (60%, doc_fetch, 2026-07-17)
The record
| Base URLs | https://api.aionlabs.ai/v1 openai-compatible |
|---|---|
| API key required | yes |
| Credit card | no |
| Phone verification | unknown |
| May train on prompts | unknown |
| Quota | free_tier [rpm, tpd] “mnfst: 'Permanent free tier, no credit card required. 15 RPM, 20K tokens/day.' Aion pricing page: '$0 — A daily credit allowance to try agent jobs, the API, and browser chat. No card required.'” |
| Signup friction | steps unknown |
| Env var | AIONLABS_API_KEY |
| Notes | Specialized for roleplay and storytelling models (Aion 2.x line plus a Llama 3.1 8B RP fine-tune). Homepage confirms OpenAI-compatible API and streaming responses; exact free-tier limits not confirmed on official pages. |
Models (3)
| model | capabilities | context | free | limits |
|---|---|---|---|---|
| aion-2.0 | chat | 131,072 | yes | 15 rpm · 20000 tpd |
| aion-2.5 | chat | 131,072 | yes | 15 rpm · 20000 tpd |
| aion-rp-llama-3.1-8b | chat | 32,768 | yes | 15 rpm · 20000 tpd |
Provenance
| source_aion_labs_docs | official_pricing | trust: high | checked 2026-07-17 |
| source_repo_mnfst | curated_repo | trust: medium_high | checked 2026-07-17 |