--- title: "kimi-k3.1-pro - Model Details & Comparison" description: "kimi-k3.1-pro from OpenRouter: capabilities, context limits, pricing, and side-by-side comparisons with alternative models." url: "https://www.getmaxim.ai/bifrost/model-library/compare/openrouter/kimi-k3.1-pro" markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/openrouter/kimi-k3.1-pro.md" --- # kimi-k3.1-pro - Model Details & Comparison > kimi-k3.1-pro from OpenRouter: capabilities, context limits, pricing, and side-by-side comparisons with alternative models. ## Important Links - [View MCP Gateway](https://www.getmaxim.ai/resources/mcp-gateway.md) - [Features](https://www.getmaxim.ai/bifrost/#features) - [Enterprise](https://www.getmaxim.ai/enterprise) - [Pricing](https://www.getmaxim.ai/pricing.md) - [Docs](https://docs.getbifrost.ai) - [GitHub](https://github.com/maximhq/bifrost) - [Book a Demo](https://www.getmaxim.ai/book-a-demo) ## About kimi-k3.1-pro kimi-k3.1-pro is a chat model from OpenRouter, one of 491 chat models they offer. It is priced at $2.00 per 1M input tokens and $10.00 per 1M output tokens, ranking 3163 out of 4042 chat models by cost and cheaper than 20% of models in this category. kimi-k3.1-pro supports vision, function calling, reasoning, prompt caching, structured output. Its 1,049K-token context window is in the top 15% among chat models. ## Specifications - **OpenRouter Provider.** - **Chat Mode.** - **1,048,576 Max Input Tokens.** - **943,718 Max Output Tokens.** - **943,718 Max Tokens.** - **$2.00 / 1M tokens Input Price.** - **$10.00 / 1M tokens Output Price.** ## Capabilities kimi-k3.1-pro supports: Function Calling, Vision, Reasoning, Prompt Caching, Response Schema, Tool Choice. ## kimi-k3.1-pro Pricing Overview At $2.00 per 1M input tokens and $10.00 per 1M output tokens, kimi-k3.1-pro ranks 3163 out of 4042 chat models by input cost. It is more expensive compared to the median of $0.60 for chat models, and is cheaper than 20% of models in this category. kimi-k3.1-pro is one of 491 OpenRouter chat models, with support for vision, function calling, reasoning, prompt caching, structured output. its 1,049K-token context window places it in the top 15% of chat models. ## Models to Compare Alternatives to kimi-k3.1-pro with comparable capabilities. | Model | Provider | Input $/1M | Output $/1M | | --- | --- | --- | --- | | anthropic.claude-sonnet-5 | AWS Bedrock | $2.00 | $10.00 | | global.anthropic.claude-sonnet-5 | AWS Bedrock | $2.00 | $10.00 | | us.anthropic.claude-sonnet-5 | AWS Bedrock | $2.20 | $11.00 | | eu.anthropic.claude-sonnet-5 | AWS Bedrock | $2.20 | $11.00 | | au.anthropic.claude-sonnet-5 | AWS Bedrock | $2.20 | $11.00 | ## Related Resources - [Calculate kimi-k3.1-pro costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/openrouter/model/kimi-k3.1-pro.md) - [Check OpenRouter status](https://www.getmaxim.ai/bifrost/provider-status/openrouter.md) - [All OpenRouter pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/openrouter.md) ## FAQ ### Is kimi-k3.1-pro cheaper than anthropic.claude-sonnet-5? No. kimi-k3.1-pro costs $2.00 per 1M input tokens while anthropic.claude-sonnet-5 costs $2.00 per 1M input tokens, making anthropic.claude-sonnet-5 0% more affordable for input. However, kimi-k3.1-pro may offer different capabilities or performance characteristics that justify the price difference. ### How does kimi-k3.1-pro pricing compare to the average chat model? kimi-k3.1-pro input pricing is $2.00 per 1M tokens, which is 233% above the median of $0.60 for chat models. It ranks 3163 out of 4042 chat models by input cost, making it cheaper than 20% of models in this category. For output, it costs $10.00 per 1M tokens compared to the median of $1.80. ### What makes kimi-k3.1-pro different from other OpenRouter models? Among OpenRouter's 491 chat models, kimi-k3.1-pro ranks 332 by input cost. ### What are the best alternatives to kimi-k3.1-pro? The most comparable chat models to kimi-k3.1-pro are: anthropic.claude-sonnet-5 from AWS Bedrock ($2.00/1M input tokens); global.anthropic.claude-sonnet-5 from AWS Bedrock ($2.00/1M input tokens); us.anthropic.claude-sonnet-5 from AWS Bedrock ($2.20/1M input tokens); eu.anthropic.claude-sonnet-5 from AWS Bedrock ($2.20/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library. ### How large is kimi-k3.1-pro's context window? kimi-k3.1-pro supports up to 1,048,576 input tokens, placing it in the top 15% of chat models by context window size (rank 436 of 4003). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories. ### How do I check if OpenRouter is down? You can monitor OpenRouter service health in real time on the Bifrost OpenRouter Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds. ### How do I calculate kimi-k3.1-pro costs? kimi-k3.1-pro is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $2.00 and generating 1M output tokens costs $10.00. ## Related Resources - [Model library](https://www.getmaxim.ai/bifrost/model-library.md) - [LLM cost calculator](https://www.getmaxim.ai/bifrost/llm-cost-calculator.md) - [Docs: Bifrost docs](https://docs.getbifrost.ai) - [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost) - [Pricing: Bifrost pricing](https://www.getmaxim.ai/pricing.md) - [Enterprise: Bifrost enterprise](https://www.getmaxim.ai/enterprise) - [Book a Demo: Bifrost demo](https://www.getmaxim.ai/book-a-demo) - [Resources: Bifrost resources](https://www.getmaxim.ai/resources.md) --- *This is a markdown version of [https://www.getmaxim.ai/bifrost/model-library/compare/openrouter/kimi-k3.1-pro](https://www.getmaxim.ai/bifrost/model-library/compare/openrouter/kimi-k3.1-pro) for AI/LLM consumption.*