Anthropic's fastest AI model. Lightning-quick responses for simple tasks, quick lookups, and high-volume applications. Free, no login needed.
Claude Haiku 3.5 is Anthropic's most compact and fastest AI model, designed for tasks where speed is the top priority. It delivers near-instant responses while maintaining solid quality for straightforward tasks and questions.
Haiku is perfect for quick Q&A, simple code snippets, content classification, and high-throughput applications. Despite its compact size, it benefits from Anthropic's safety-first approach and provides helpful, reliable responses.
Yes — Haiku 3.5 is completely free on chat-gpt.org. No login or sign-up required.
Haiku is the fastest Claude model, delivering AI responses in milliseconds for most queries.
Use Haiku for quick, simple tasks. Use Sonnet for complex analysis, longer writing, and advanced coding.
Haiku handles simple coding tasks well — snippets, syntax fixes, and quick explanations. For complex code, use Sonnet or Opus.
Haiku works best for shorter interactions. For extended analysis and deep conversations, consider Sonnet or Opus.
Yes — Haiku follows the same safety principles as all Claude models while being the fastest option available.