You're chatting with Claude Opus 4. Type a message to get started.
Claude Opus 4 can make mistakes. Check important info.
Claude Opus 4 — Free AI Chat on Rewind.ai
Chat with Claude Opus 4 for free — no signup, no credit card. Anthropic's Claude Opus 4 runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.
What is Claude Opus 4?
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in.
How does Claude Opus 4 work?
Type your message in the box above and Claude Opus 4 replies instantly — no setup required. Your chat history is saved locally in your browser; sign up free to sync it across devices and get an extra 10,000 tokens. You can switch between Claude Opus 4 and other models at any time from the picker at the top.
Is Claude Opus 4 free?
Claude Opus 4 is a premium model: it runs on tokens from a token pack or paid plan (from $5). The free daily tokens (2,500 a day, 5,000 with a free account) cover Rewind's free models, so you can try the site at no cost.