Claude Haiku 5.5
$0.1/Mtok inAnthropic's cheapest and fastest Claude: a big step up from Haiku 4.5 in coding, computer use and knowledge work, at $0.10 / $0.50 per 1M tokens for prompts up to 100K.
Playground
Try it in the browser
Facts
At a glance
Availability
Live
Pricing
$0.1 / M input · $0.5 / M output · $0.01 / M cached input
Endpoint
Chat Completions
/v1/chat/completions
Context window
1,000k tokens
API
Call it from code
import OpenAI from "openai"
const client = new OpenAI({
baseURL: "https://api.companyfabric.com/v1",
apiKey: process.env.COMPANYFABRIC_API_KEY,
})
const res = await client.chat.completions.create({
model: "anthropic/claude-haiku-5-5",
max_tokens: 1024,
temperature: 0.7,
messages: [{ role: "user", content: "Say hello from the fabric." }],
})
console.log(res.choices[0].message.content)FAQ
Frequently asked questions
How much does Claude Haiku 5.5 cost?
$0.1 / M input · $0.5 / M output · $0.01 / M cached input. The exact cost of each call is shown before you run it and metered to your prepaid balance, no subscription required.
Why use Claude Haiku 5.5 on CompanyFabric instead of going direct?
One key and one balance across every model in the library, at pricing at parity with or below the direct API. Switching models is a one-line change.
Is Claude Haiku 5.5 available through the OpenAI SDK?
Yes, point any OpenAI SDK at api.companyfabric.com/v1 and set model to "anthropic/claude-haiku-5-5".
Variants
Same family
Claude Sonnet 4.5
RetiringAnthropic
Frontier-quality text and reasoning through one OpenAI-compatible endpoint.
Added 1 Jun 2026 · text
Claude Haiku 4.5
$1/Mtok inAnthropic
Fast, cheap frontier-family model for high-volume tasks.
Added 1 Jun 2026 · text
Claude Opus 4.6
$5/Mtok inAnthropic
The frontier tier for the hardest reasoning and agentic work.
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Claude Fable 5
$10/Mtok inAnthropic
Anthropic's first Mythos-class model, the new flagship tier above Opus, tuned for the hardest reasoning and agentic work.
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Claude Opus 5
$5/Mtok inAnthropic
The Claude 5 generation's deep-work model, maximum-capability reasoning for research, architecture, and hard agentic tasks.
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Claude Opus 5.5
$4/Mtok inAnthropic
First of the Claude 5.5 generation: Fable-class agentic coding and computer use at 20% below Opus 5.
Added 22 Sep 2026 · text
Claude Sonnet 5.5
$2/Mtok inAnthropic
The fast Claude 5.5: near-Opus coding and knowledge work, 30%+ faster than Sonnet 5, at half Opus 5.5's price.
Added 28 Sep 2026 · text
Claude Fable 5.1
$10/Mtok inAnthropic
Anthropic's top generally available model, tied for first on the Artificial Analysis Intelligence Index.
Added 1 Sep 2026 · text
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Run Claude Haiku 5.5 with free starter credits. Free starter credits included, no subscription required.