Overview
Kimi K3 vs GPT-5.6 Terra vs Claude Sonnet 5: side-by-side summary
Kimi K3, GPT-5.6 Terra, and Claude Sonnet 5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $0.238/M tokens input, $16/M tokens output on OpenRouter.
GPT-5.6 Terra, from OpenAI, has a 1,050,000-token context window and is priced at $2/M tokens input, $12/M tokens output on OpenRouter.
Claude Sonnet 5, from Anthropic, has a 1,000,000-token context window and is priced at $2/M tokens input, $10/M tokens output on OpenRouter.
- Context window
- Kimi K3: 1,048,576 tokens
- GPT-5.6 Terra: 1,050,000 tokens
- Claude Sonnet 5: 1,000,000 tokens
- Price
- Kimi K3: $0.238/M tokens input, $16/M tokens output
- GPT-5.6 Terra: $2/M tokens input, $12/M tokens output
- Claude Sonnet 5: $2/M tokens input, $10/M tokens output
- Provided by
- Kimi K3: moonshotai
- GPT-5.6 Terra: OpenAI
- Claude Sonnet 5: Anthropic