What this model error usually means
AionLabs: Aion-2.0 returning 400 / context length exceeded means you should first confirm whether model ID aion-labs/aion-2.0 is visible for this Aion Labs key, then separate permission, context, capability, rate limit, or route issues.
- Model: aion-labs/aion-2.0
- Provider: Aion Labs
- Status code: 400