It is 15x more expensive. Openrouter usually charges like 1/4 for cached input. Most of the cost for agentic coding is input tokens, you pay for the whole cont

It is 15x more expensive. Openrouter usually charges like 1/4 for cached input. Most of the cost for agentic coding is input tokens, you pay for the whole context at each tool call or message. Output tokens is just a small rate