Is AionLabs: Aion-RP 1.0 (8B) or OpenAI: GPT-5 Pro cheaper?

AionLabs: Aion-RP 1.0 (8B) is cheaper on output tokens ($1.60 vs $120.00 per 1M).

Which has the larger context window, AionLabs: Aion-RP 1.0 (8B) or OpenAI: GPT-5 Pro?

OpenAI: GPT-5 Pro has the larger context window (400K tokens).

AionLabs: Aion-RP 1.0 (8B) vs OpenAI: GPT-5 Pro

AionLabs: Aion-RP 1.0 (8B) is cheaper on output tokens, while OpenAI: GPT-5 Pro offers a larger context window. Choose AionLabs: Aion-RP 1.0 (8B) or OpenAI: GPT-5 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	AionLabs: Aion-RP 1.0 (8B)	OpenAI: GPT-5 Pro
Provider	Kilo Gateway	Kilo Gateway
Input / 1M tokens	$0.80	$15.00
Output / 1M tokens	$1.60	$120.00
Context window	33K	400K
Parameters	—	—
Open weights	No	No
Released	Feb 2025	Oct 2025

AionLabs: Aion-RP 1.0 (8B) details →OpenAI: GPT-5 Pro details →

FAQ

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