Overview
Kimi K2 Thinking vs GPT-5 Pro: side-by-side summary
Kimi K2 Thinking and GPT-5 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Kimi K2 Thinking, from moonshotai, has a 262,144-token context window and is priced at $0.60/M tokens input, $2.50/M tokens output on OpenRouter.
GPT-5 Pro, from OpenAI, has a 400,000-token context window and is priced at $15/M tokens input, $120/M tokens output on OpenRouter.
- Context window
- Kimi K2 Thinking: 262,144 tokens
- GPT-5 Pro: 400,000 tokens
- Price
- Kimi K2 Thinking: $0.60/M tokens input, $2.50/M tokens output
- GPT-5 Pro: $15/M tokens input, $120/M tokens output
- Provided by
- Kimi K2 Thinking: moonshotai
- GPT-5 Pro: OpenAI