Anthropic releases Claude Haiku 5.5, its cheapest and fastest Claude model
On 7 October 2026, Anthropic released Claude Haiku 5.5, its smallest and fastest Claude model, built for high-volume, cost-sensitive work. It costs $0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100K tokens. Free, Pro, Max, Team and Enterprise users can select it in Claude.ai, and developers can use it on the Claude Platform.
The short version
- 01Anthropic released Claude Haiku 5.5 on 7 October 2026.
- 02It costs $0.10 in and $0.50 out per million tokens, for prompts up to 100K tokens.
- 03Free users can pick it in Claude.ai on web, iOS and Android.
- 04The test scores are Anthropic's own.
At a glance
| Model | Claude Haiku 5.5 |
|---|---|
| Released | 7 October 2026 |
| Price (up to 100K tokens) | $0.10 input, $0.50 output per million tokens |
| Price (over 100K tokens) | $0.50 input, $2.50 output per million tokens |
| API name | claude-haiku-5-5 |
| Where | Claude.ai, Claude Platform, AWS, Google Cloud, Microsoft Foundry, Claude Code |
| Status | Confirmed |
What is Claude Haiku 5.5?
Claude Haiku 5.5 is the smallest model in Anthropic's Claude 5.5 family. Anthropic calls it its fastest, cheapest and most capable small model yet, designed for high-volume, cost-sensitive work.
It is also the first Haiku with effort controls, so teams can tune cost against intelligence for each task.
How much does Claude Haiku 5.5 cost?
For prompts up to 100K tokens, it costs $0.10 per million input tokens and $0.50 per million output tokens on the Claude Platform. For prompts over 100K tokens, it costs $0.50 per million input tokens and $2.50 per million output tokens.
Anthropic says prompt caching can save up to 90% and batch processing 50%. The model name for developers is claude-haiku-5-5.
Who can use Claude Haiku 5.5?
Free, Pro, Max, Team and Enterprise users can select Haiku 5.5 in Claude.ai on web, iOS and Android. Developers can use it on the Claude Platform, Amazon Web Services, Google Cloud and Microsoft Foundry. It is also in Claude Code.
How good is Claude Haiku 5.5?
Anthropic says it is a significant step up over Haiku 4.5 on coding, tool use, computer use and agents. In its own table, Haiku 5.5 scores 72.4% on the OSWorld 2.1 computer-use test, against 15.7% for Haiku 4.5 and 48.9% for GPT-6 Luna. Sonnet 5.5, a larger model, scores 83.9%.
These are Anthropic's own results. Independent tests are not out yet.
In early testing, Claude Haiku 5.5 scored 11 points higher than Haiku 4.5 at about half the latency.
Yashodha Bhavnani, VP of AI Products, Box
What is Haiku 5.5 for?
Anthropic lists high-volume text tasks such as summaries and sorting, real-time chat and voice, small helper agents, browser and desktop automation, and simple coding. For complex coding and knowledge work, it points to Opus 5.5.
Why does it matter?
A cheaper, faster model lets companies add AI to more everyday features, like support chat or document search, without a large bill.
What's next?
Watch for independent tests that check Anthropic's scores, and for apps that switch to Haiku 5.5.
Questions people ask
What is Claude Haiku 5.5?
Anthropic's smallest, fastest and cheapest Claude model, released on 7 October 2026.
How much does it cost?
$0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100K tokens.
Can I use it for free?
Free users can select it in Claude.ai on web, iOS and Android.
Is it better than Haiku 4.5?
Anthropic says it is a significant step up over Haiku 4.5. The scores are Anthropic's own.
Sources
- PrimaryAnthropic: Claude Haiku (7 Oct 2026)
- PrimaryAnthropic newsroom
Why "Confirmed"? We label a story "Confirmed" when the company or government announced it itself. Spotted an error? Email hello@openloopnews.com and we will correct it.
