Mistral Large 4 lists on OpenRouter with 512K context
Mistral Large 4 appeared in the OpenRouter model list on 6 October 2026. It is a multimodal model taking text and image input, aimed at reasoning, coding and agentic work, with a 524,288 token context window. Pricing is listed at $0.68 per 1M input tokens and $2.09 per 1M output tokens.
What it means for a SaaS brand
A cheap, long-context model that reads images makes it practical for agents to ingest whole doc sets, pricing pages and screenshots in one pass, so your comparison and pricing pages should be legible as full documents rather than relying on a single tidy summary block. Worth re-running your brand prompts through this model to see whether its answers about your category differ from the ones you already track.
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We measure how often AI answers name your brand, track what moves it, and tell you what to do next.