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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 pay-as-you-go at $15.00/M input tokens, but you can use it without paying: every visitor gets 2,500 free tokens a day with no sign up, and a free account raises that to 5,000.