--- title: "auto - Model Details & Comparison" description: "auto from OpenRouter: capabilities, context limits, pricing, and side-by-side comparisons with alternative models." url: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openrouter/auto" markdown: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openrouter/auto.md" --- # auto - Model Details & Comparison > auto from OpenRouter: capabilities, context limits, pricing, and side-by-side comparisons with alternative models. ## Important Links - [View MCP Gateway](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources/mcp-gateway.md) - [Features](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/#features) - [Enterprise](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/enterprise) - [Pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/pricing.md) - [Docs](https://docs.getbifrost.ai) - [GitHub](https://github.com/maximhq/bifrost) - [Book a Demo](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/book-a-demo) ## About auto auto is a chat model from OpenRouter. auto supports vision, function calling, reasoning, audio input, structured output — one of only 4 chat models with this combination. Its 2,000K-token context window is in the top 1% among chat models. ## Specifications - **OpenRouter Provider.** - **Chat Mode.** - **2,000,000 Max Input Tokens.** - **2,000,000 Max Tokens.** - **$-1000000.0000 / 1M tokens Input Price.** - **$-1000000.0000 / 1M tokens Output Price.** ## Capabilities auto supports: Function Calling, Vision, Reasoning, Audio Input, Video Input, Response Schema, Tool Choice, PDF Input. ## auto Pricing Overview auto is a chat model from OpenRouter, one of only 4 chat models combining audio input, function calling, reasoning, structured output, vision. its 2,000K-token context window places it in the top 1% of chat models. ## Models to Compare Alternatives to auto with comparable capabilities. | Model | Provider | Input $/1M | Output $/1M | | --- | --- | --- | --- | | gemini-2.5-pro | Vertex AI | $1.25 | $10.00 | | gemini-3-pro-preview | Vertex AI | $2.00 | $12.00 | | gemini-3.5-flash | Vertex AI | $1.50 | $9.00 | | gemini-3.6-flash | Vertex AI | $1.50 | $7.50 | | gemini-3.1-pro-preview | Vertex AI | $2.00 | $12.00 | - [Compare gemini-2.5-pro](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-2.5-pro.md) - [Compare gemini-3-pro-preview](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3-pro-preview.md) - [Compare gemini-3.5-flash](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3.5-flash.md) - [Compare gemini-3.6-flash](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3.6-flash.md) - [Compare gemini-3.1-pro-preview](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-3.1-pro-preview.md) ## Related Resources - [Calculate auto costs](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/auto.md) - [Check OpenRouter status](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/provider-status/openrouter.md) - [All OpenRouter pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter.md) ## FAQ ### Is auto cheaper than gemini-2.5-pro? Yes. auto costs $-1000000.0000 per 1M input tokens compared to gemini-2.5-pro's $1.25 per 1M input tokens. Both are chat models and share support for vision, function calling, reasoning, audio input, web search, prompt caching, structured output. ### What are the best alternatives to auto? The most comparable chat models to auto are: gemini-2.5-pro from Vertex AI ($1.25/1M input tokens); gemini-3-pro-preview from Vertex AI ($2.00/1M input tokens); gemini-3.5-flash from Vertex AI ($1.50/1M input tokens); gemini-3.6-flash from Vertex AI ($1.50/1M 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 auto's context window? auto supports up to 2,000,000 input tokens, placing it in the top 1% of chat models by context window size (rank 7 of 2653). 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 auto costs? auto 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 $-1000000.0000 and generating 1M output tokens costs $-1000000.0000. ## Related Resources - [OpenRouter models](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/provider/openrouter.md) - [Model library](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library.md) - [LLM cost calculator](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator.md) - [Docs: Bifrost docs](https://docs.getbifrost.ai) - [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost) - [Pricing: Bifrost pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/pricing.md) - [Enterprise: Bifrost enterprise](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/enterprise) - [Book a Demo: Bifrost demo](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/book-a-demo) - [Resources: Bifrost resources](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources.md) --- *This is a markdown version of [https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openrouter/auto](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openrouter/auto) for AI/LLM consumption.*