Aion-3.0 vs Mercury 2.5 Preview: side-by-side summary

Aion-3.0 and Mercury 2.5 Preview are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Aion-3.0, from Aion Labs, has a 131,072-token context window and is priced at $3/M tokens input, $6/M tokens output on OpenRouter.

Mercury 2.5 Preview, from inception, has a 260,000-token context window and is priced at $0.04/M tokens input, $0.15/M tokens output on OpenRouter.

Context window

• Aion-3.0: 131,072 tokens
• Mercury 2.5 Preview: 260,000 tokens

Price

• Aion-3.0: $3/M tokens input, $6/M tokens output
• Mercury 2.5 Preview: $0.04/M tokens input, $0.15/M tokens output

Provided by

• Aion-3.0: Aion Labs
• Mercury 2.5 Preview: inception

• Aion-3.0 model details, providers and pricing
• Mercury 2.5 Preview model details, providers and pricing