How to use Haiku 5.5 for free
Three steps. No credit card.
Ask a question
Type anything in the chat box above. Guests get free messages every day.
Haiku 5.5 thinks and searches
The agent plans its answer, and searches the web or reads pages when it needs fresh information.
Get a cited answer
Read the answer with its sources, copy it, or keep the conversation going.
More than a chatbot: a Haiku 5.5 agent
Haiku55 gives Claude Haiku 5.5 tools, so it can look things up and show its work.
Web search with citations
Turn on web search and Haiku 5.5 checks current facts first, then answers with numbered sources you can verify.
Searched“haiku 5.5 context window”· 8 results
Claude Haiku 5.5 reads up to 1M tokens of context and writes up to 128K tokens in a single answer.12
Sources
Reads any link
Paste a URL and the agent fetches the page or PDF, then summarizes it, translates it or answers questions about it.
Summarize this report in five bullet points.
Read“annual-report-2025.pdf”
Adaptive thinking
Haiku 5.5 decides how much to think. Pick Fast, Smart or Deep mode, and open the thought process whenever you want to see it.
Thought process
Long documents
With a 1M-token context window, Haiku 5.5 can work across long reports, contracts and codebases in one conversation.
Any language
Ask in English, 中文, Español, 日本語 and more. Haiku 5.5 replies in the language you write in.
Saved conversations
Sign in to keep your chat history, pick up where you left off, and get free credits every day.
Haiku 5.5 vs Haiku 4.5
What changed in the newest Haiku model.
- Thinking
- Adaptive, on by default5.5
- Manual token budget4.5
- Effort levels
- low → max (5 levels)5.5
- Not supported4.5
- Browser use tool
- Supported5.5
- Not supported4.5
API prices are Anthropic list prices. On Haiku55 you chat with daily free credits instead.
Haiku 5.5 pricing: free to start
Chat free every day. Upgrade only if you need more.
Free
Try Haiku 5.5 with no commitment
- 5 messages a day without sign-up
- 30 free credits every day after sign-in
- Web search & link reading
- Saved chat history
Basic
For regular use
- 3,000 credits / month
- Fast, Smart & Deep modes
- Web search & link reading
- Plus free daily credits
Pro
PopularFor heavy daily use
- 8,000 credits / month
- Fast, Smart & Deep modes
- Web search & link reading
- Plus free daily credits
- Priority support
Max
For power users
- 20,000 credits / month
- Fast, Smart & Deep modes
- Web search & link reading
- Plus free daily credits
- Priority support
1 credit ≈ $0.001 of model usage. A typical message costs 1 credit; each web search costs about 10 credits.
Building with the API? See Claude Haiku 5.5 per-token pricesHaiku 5.5 FAQ
Everything about using Claude Haiku 5.5 for free on Haiku55.
Haiku 5.5 guides
Learn what Claude Haiku 5.5 can do and how to get the most out of it.
Haiku55 Team
Try Claude Haiku 5.5 free, right now
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