Is Aion-2.0 or Aion-RP 1.0 (8B) cheaper?

Aion-2.0 and Aion-RP 1.0 (8B) have comparable output pricing.

Which has the larger context window, Aion-2.0 or Aion-RP 1.0 (8B)?

Aion-2.0 has the larger context window (131K tokens).

Aion-2.0 vs Aion-RP 1.0 (8B)

Both have similar output pricing, while Aion-2.0 offers a larger context window. Choose Aion-2.0 or Aion-RP 1.0 (8B) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Aion-2.0	Aion-RP 1.0 (8B)
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$0.80	$0.80
Output / 1M tokens	$1.60	$1.60
Context window	131K	33K
Parameters	—	—
Open weights	No	No
Released	Feb 2026	Feb 2025

Aion-2.0 details →Aion-RP 1.0 (8B) details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.