Anthropic: Claude Opus 4.6 (Fast)

Claude Opus 4.6 (Fast) is a multimodal model from Anthropic that accepts text, images, and files as input. It supports tool use and reasoning, which makes it suitable for agentic workflows and multi-step problem solving. Its context window reaches one million tokens, and it can produce up to 128,000 output tokens per request, accommodating long documents and extended generation tasks. At $30 per million input tokens and $150 per million output tokens, this sits at the premium end of the market, and buyers should weigh that cost carefully. There is currently no independent benchmark coverage to validate its performance claims against competing models, so the quality case rests entirely on Anthropic's own positioning. Teams with high-volume use cases should run their own evaluations before committing, while those already inside the Anthropic ecosystem may find the large context and reasoning support worth the price for specialized, lower-frequency workloads.