Mercury 2.5 vs Kimi K3: side-by-side summary

Mercury 2.5 and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Mercury 2.5, 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.

Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $2.50/M tokens input, $14/M tokens output on OpenRouter.

Context window

• Mercury 2.5: 260,000 tokens
• Kimi K3: 1,048,576 tokens

Price

• Mercury 2.5: $0.04/M tokens input, $0.15/M tokens output
• Kimi K3: $2.50/M tokens input, $14/M tokens output

Provided by

• Mercury 2.5: inception
• Kimi K3: moonshotai

• Mercury 2.5 model details, providers and pricing
• Kimi K3 model details, providers and pricing