Anthropic
Chat with Claude Sonnet 5.5 for free
Claude Sonnet 5.5 is fast and capable for everyday coding, agentic tasks, and professional work. Supports reasoning and web search.
Provider
Anthropic
Tier
Available on the free plan, no card required
Specs
- Context window
- 1M tokens
- Reasoning
- Yes
- Web search
- Yes
Ideas to try
Step through a tough problem
Work through this carefully, show your reasoning, and state your confidence at the end:
Find the flaw
Here is an argument. Find weak points, hidden assumptions, and a stronger alternative:
Research with sources
Research the latest on [topic]. Summarize key facts and note what is still uncertain.
Compare options today
Compare the current options for [category]. What changed recently, and what would you pick for a careful buyer?
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FAQ
Claude Sonnet 5.5 FAQ
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