Claude Haiku 5.5
Anthropic's quick and economical Claude, with reasoning you can turn off or dial up, available anonymized through NeverNo.
Updated November 8, 2026
Readable on your devices only.
Your conversation is readable on your device, and on your other devices if you sync them. Nowhere else.
Unreadable to us.
Your message passes through without being written down; your chats are only ever stored encrypted.
The model doesn’t know you.
It gets the question, never your email, your account or your IP address.
Nothing is left along the way.
The reply comes back and is stored here, encrypted; even when you sync, your key never reaches us in the clear.
At a glance
| Maker | Anthropic |
|---|---|
| Context | 100,000 tokens |
| Longest reply | 8,192 tokens |
| Strengths in the app | Fast, Reads images |
| Reasoning | On demand |
| Who can use it | Paid plans |
| How it’s paid | Credits, from the first use |
| Privacy | Anonymized: NeverNo sends the request to its maker without your name, account or IP address. The maker still reads the text, applies its own rules and may keep it for a while under its own policy.Some requests its maker doesn’t allow are answered by one of NeverNo’s private models instead, and the app tells you so. |
Price
What the app charges, read from the same table the servers bill with. 1 credit = $0.01.
| Typical message (2,000 tokens read, 600 written) | 0.14 credits ($0.0014) |
|---|---|
| Million tokens read | 26.38 credits ($0.26) |
| Million tokens written | 131.88 credits ($1.32) |
Measured
Our own measurements and one third-party score, each with its conditions and date. Figures are not rounded.
| Median time to the first word | 0.64 sOur client, 12 everyday requests run 3 times each, November 9, 2026 |
|---|---|
| arena.ai Text Arena, overall score | 1,425Third-party leaderboard, page dated October 27, 2026 |
What it is
Claude Haiku 5.5 is the small, fast member of Anthropic's family. On NeverNo it is the Claude for high-volume, everyday use: short answers, quick rewrites, classifying or extracting information, reading an image and saying what is in it. It uses far fewer credits than the other Claude models, which makes it the sensible default when you want Claude's style without paying for depth you do not need. Think of it as the pocket notebook of the range: always at hand, cheap to fill, perfectly adequate for most scribbles.
It is also the most adjustable Claude in our selector. Its Reasoning setting offers five positions: Adaptive (the default, which answers directly when the question allows), Off for pure speed, then Low, Medium and High when you want it to think before replying. You can keep it on Off for a stream of small tasks and raise it only for the one question that needs care.
Access is anonymized. NeverNo forwards your request to Anthropic without your name, account or IP address, and your history stays encrypted in your browser. Anthropic still reads the text, applies its own rules and may keep it for a while under its own policy, so Haiku can refuse some requests. Some requests its maker does not allow are answered by one of NeverNo's private models instead, and the app tells you so.
Haiku 5.5 has a 100,000-token context, half that of the larger Claude models, and writes up to 8,192 tokens per answer. On the arena.ai Text Arena (overall score, page dated October 27, 2026) it scores 1425. It is a premium model on paid plans, paid in credits per message.
Strengths
Tagged as fast in our selector, and with reasoning switched Off it goes straight to the answer: good for rapid back-and-forth.
The lightest credit cost of the four Claude models, so long sessions of small requests stay affordable.
Five reasoning positions, from Off to High, so you choose per conversation between speed and care.
Reads images: receipts, labels, screenshots or a photo of a page can be described, transcribed or sorted.
Anonymized: no Anthropic account, no identity sent with your text, history kept encrypted in your browser.
Limits
Its context is 100,000 tokens and its answers stop at 8,192 tokens: for very long documents, Claude Sonnet 5.5 (200k) or Kimi K3 (256k) are a better fit.
With 1425 on the arena.ai Text Arena (October 27, 2026), it trails the larger Claude models; complex writing or deep analysis belongs with Sonnet or Opus.
It still costs credits: for free quick answers, DeepSeek V4 Flash and the other included models need none.
Anthropic reads the text and applies its own rules, so it may refuse; some requests outside them go to a private NeverNo model, which the app indicates.
When to choose it
Quick rewrites and replies
Shorten an email, fix the grammar or spelling of a paragraph, turn bullet points into a polite message, translate a few lines: small jobs that Haiku handles in seconds with reasoning Off.
Extracting and sorting information
Paste a batch of customer messages, invoices or survey answers and ask for a table of names, dates, amounts or categories. Its low credit cost suits repetitive, structured work, such as cleaning a mailing list or tagging support tickets before a weekly review.
Describing images on the go
Photograph a label, a sign in another language or a handwritten note and ask what it says or means. On a phone, it is a fast way to get a readable answer without picking a bigger model: menus abroad, medicine leaflets, parking signs, museum captions.
Prompt tips
Keep prompts short and direct, with the exact output you want (« one line », « JSON with these three fields »): Haiku follows tight instructions well and stays fast.
Leave reasoning on Off or Adaptive for routine tasks, and move to Medium or High only for a question with several steps, such as a calculation or a comparison.
For repetitive jobs, give one worked example first, then the batch: it copies the format faithfully across many items, keeping column order, capitalization and units consistent.
Frequently asked questions
Is Claude Haiku 5.5 free on NeverNo?
No. Claude Haiku 5.5 is a premium model on paid plans, paid in credits per message, and it is the least costly Claude we offer. The selector shows an estimate for a typical exchange.
Is Claude Haiku 5.5 private?
It is anonymized: Anthropic receives your text without your name, account or IP address, and your history stays encrypted in your browser. Anthropic still reads the request, applies its rules and may keep it for a while. For requests that should never reach a closed company, use one of NeverNo's private models.
What is the context window of Claude Haiku 5.5?
100,000 tokens, with answers of up to 8,192 tokens. It also reads images attached to your messages.
Claude Haiku 5.5 or Claude Sonnet 5.5: which one do I need?
Haiku is the fast, economical choice for short tasks and offers reasoning from Off to High. Sonnet has twice the context, longer answers, is tagged for code and scored higher on the arena.ai Text Arena (1477 versus 1425, October 27, 2026). Small jobs: Haiku; real projects: Sonnet.
How do I make Claude Haiku 5.5 answer faster?
Choose Claude Haiku 5.5 in the model selector, open its Reasoning setting and pick Off: it then replies without a thinking phase. Switch back to Adaptive or higher whenever a question needs more care.