What is Claude Haiku?

Claude Haiku is Anthropic’s smallest, fastest and lowest-cost Claude tier, below Sonnet, Opus and Fable. Anthropic recommends it for high-volume, speed-sensitive tasks such as classification, extraction and routing.

Claude Haiku vs Sonnet: what is the difference?

Haiku is Anthropic’s fastest, lowest-cost tier for narrowly scoped tasks such as summaries, extraction and routing. Anthropic says Sonnet and Opus remain better choices for complex agentic coding. On Sparkian you can send one prompt to both and compare.

Is Claude Haiku 5.5 better than Haiku 4.5?

Anthropic reports higher scores across its published benchmarks for Haiku 5.5, at about 75% lower average cost than Haiku 4.5. It is also the first Haiku with an adjustable effort setting and a 1M-token context window.

Is Claude Haiku AI free?

Yes. Claude Haiku 5.5 is free to try every day. Sign up to keep your chats. Claude Haiku 4.5 needs the Pro plan.

Which Claude Haiku model is best?

For everyday tasks, start with Claude Haiku 5.5, which is free. For the most demanding work, use Claude Haiku 4.5. For long documents, Claude Haiku 5.5 reads up to 1M tokens.

What is the latest Claude Haiku model?

Claude Haiku 5.5 is the newest Claude Haiku model on Sparkian, released October 7, 2026.

How much does Claude Haiku cost?

Claude Haiku 5.5 starts at 1 Spark per message and Claude Haiku 4.5 at 5 Sparks per message. The Pro plan is $19 a month with 10,000 Sparks, about 2,000 Claude Haiku 4.5 messages. Top-ups work on every plan.

How do I access Claude Haiku 4.5?

Sign up, choose the Pro plan and pick Claude Haiku 4.5 in the chat box. No Anthropic account or API key is needed.

How does Claude Haiku compare with DeepSeek, Gemini and GPT-4o?

Try them side by side. Turn on Compare models in the chat box, add up to three more models and send one prompt to all of them. Each answer uses that model’s Sparks.

Can Claude Haiku read images and files?

Yes. Claude Haiku models read images and files, and you can attach PDFs, Word documents, spreadsheets and images to any Claude Haiku chat.

Claude Haiku | Sparkian

What Claude Haiku is good at

Claude Haiku is good at short customer replies, structured data extraction and labeling feedback. In our tests, Claude Haiku 5.5 wrote a two-sentence apology offering a replacement or refund, returned the exact name, company and meeting time as JSON, and labeled three comments as a bug, a feature request and praise.

Reply to a customer

Write a two-sentence reply to a customer whose order arrived damaged. Apologize and offer a replacement or a refund.

Claude Haiku 5.5

I’m sorry your order arrived damaged.

Extract details

Extract the name, company and meeting time from this message and return JSON: Hi, this is Priya Shah from Northwind. Can we meet on 14 March at 3 pm?

Claude Haiku 5.5

contact.json

{
  "name": "Priya Shah",
  "company": "Northwind",
  "meeting_time": "14 March, 3 pm"

Sort feedback

Label each comment as a bug, a feature request or praise: "The export button crashes", "Please add dark mode", "Love the new search".

Claude Haiku 5.5

The export button crashes
Please add dark mode
Love the new search: Praise

Extract details

Answered November 11, 2026, shown unedited

Extract the name, company and meeting time from this message and return JSON: Hi, this is Priya Shah from Northwind. Can we meet on 14 March at 3 pm? Keep your answer under 180 words, with code where useful.

Claude Haiku 5.5

{
  "name": "Priya Shah",
  "company": "Northwind",
  "meeting_time": "14 March, 3 pm"
}

Sort feedback

Answered November 11, 2026, shown unedited

Label each comment as a bug, a feature request or praise: "The export button crashes", "Please add dark mode", "Love the new search". Keep your answer under 180 words, with code where useful.

Claude Haiku 5.5

"The export button crashes"  -> Bug
"Please add dark mode"       -> Feature request
"Love the new search"        -> Praise

Haiku answered the feedback task in a plain code block rather than a table, so ask for the format you want. Three sample prompts tested live by Chandan Kumar on November 11, 2026. Answers are unedited and regenerated for every new model.

Claude Haiku models and pricing

Claude Haiku 5.5 costs the least, from 1 Sparks per message. Claude Haiku 4.5 costs the most, from 5.

Model	Speed	Reasoning	Context	Sparks	Plan	Est. messages a month on Pro
Claude Haiku 5.5 Latest	Fast	Basic	1M	Sparks1+	Free	≈10,000
Claude Haiku 4.5	Fast	Basic	200K	Sparks5+	Pro	≈2,000

Sparks are per message and start at the amount shown. Monthly counts are estimates; longer chats and attached files use more.

All plans

Claude Haiku 5.5 specs

Context window

tokens

The largest on Sparkian is 1.1M tokens. Attached files count toward it.

Sparks per message

Free to try every day.

Est. messages a month on Pro

≈10,000

$19 a month with 10,000 Sparks included.

Inputs: Text, Images
Outputs: Text
Web tools: Search and read websites
Files: PDFs, docs, sheets and slides
Released: October 7, 2026
Access: Free
Speed: Fast
Reasoning: Basic

Claude Haiku release dates

Claude Haiku 5.5 is the newest Claude Haiku model, released October 7, 2026. You can use both versions on Sparkian.

October 7, 2026
Claude Haiku 5.5 Latest
Context window
1M tokens
Sparks
Sparks1+
Access
Free
October 15, 2025
Claude Haiku 4.5
Context window
200K tokens
Sparks
Sparks5+
Access
Pro

Why use Claude Haiku on Sparkian

Compare Claude Haiku with DeepSeek and Gemini
See how Claude Haiku holds up against other models in one prompt.
One plan, 100+ models
No separate subscription per provider.
Research with sources
Web search and reading, cited.
Images and teams
Generate in chat, share projects.