Short‑term access: Claude Opus free week

Ampere.sh said it is giving users one week of unlimited access to Anthropic’s Claude Opus 4.6 across every plan tier. (x.com) The announcement was posted by Ampere.sh on X, where the company said the offer applies to “all plans” for seven days. Anthropic lists Claude Opus 4.6 as its current premium model for coding, agents, and professional work. (x.com) (anthropic.com) Anthropic released Claude Opus 4.6 on February 5, 2026, and said the model is available on Claude, its application programming interface, and major cloud platforms. Anthropic says pricing for the model remains $5 for 1 million input tokens and $25 for 1 million output tokens. (anthropic.com) Ampere.sh markets itself as a place to compare outputs across multiple model providers in one workspace. In a March 28, 2026 post comparing GLM 5.1 and Claude Opus 4.6, the company said users can run the same prompt across providers and keep the result that works best. (ampere.sh) That setup turns a one-week promotion into a price signal. Anthropic sells Opus access inside paid Claude plans and through token-based application programming interface billing, while Ampere.sh is temporarily removing that usage ceiling inside its own tiers. (claude.com) (anthropic.com) Anthropic’s own pricing page says its Free, Pro, Max, Team, and Enterprise plans differ by usage and model access. The Max tier starts at $100 a month, while Pro is listed at $20 a month. (claude.com) Anthropic says Opus 4.6 is built for professional software engineering, complex agent workflows, and high-stakes enterprise tasks. Its system card says the model is designed for software engineering, long-context reasoning, financial analysis, document creation, and multi-step research workflows. (anthropic.com 1) (anthropic.com 2) The offer also lands as model platforms compete on access as much as model quality. Anthropic cut Opus pricing when it launched Opus 4.5 in late 2025, saying lower rates were meant to make Opus-level capabilities available to more users, teams, and enterprises. (anthropic.com) For Ampere.sh, the promotion is a seven-day test of whether easier access can pull users toward a model that Anthropic positions as its top-end option. For developers and teams, it is a short window to use Opus 4.6 without the normal plan or token limits that usually shape how often premium models get used. (x.com) (anthropic.com)