OpenRouter vs ChatGPT
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $60M (seed + Series A) from a16z, Sequoia, Menlo Ventures. $500M+ valuation. 1M+ developers. $100M+ annualized inference spend routed. De facto standard LLM router.
About
OpenRouter is the de facto standard LLM routing layer — sitting between applications and every major AI model provider (OpenAI, Anthropic, Google, Meta, Mistral) to route inference requests based on cost, speed, and capability. The company has raised $60 million across seed and Series A financing from Andreessen Horowitz, Sequoia Capital, and Menlo Ventures at a $500 million+ valuation, with 1 million+ developers routing $100 million+ in annualized inference spend through its platform.
ChatGPT surpassed 400M weekly active users in February 2025 and launched GPT-4o with voice, image, and real-time reasoning — the world's most-used AI product.
About
ChatGPT is OpenAI's flagship AI assistant, launched in November 2022 and credited with igniting mainstream consumer adoption of generative AI. It crossed 100 million users in two months — the fastest consumer product to do so in history — and reached 400 million weekly active users by February 2025. Available as a free web and mobile app with a ChatGPT Plus subscription ($20/month) unlocking GPT-4o, advanced voice mode, image generation, and longer context.
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