Claude Opus 5
$12/Mtok inThe Claude 5 generation's deep-work model — maximum-capability reasoning for research, architecture, and hard agentic tasks.
Playground
Try it in the browser
Facts
At a glance
Availability
Live
Pricing
$12 / M input · $60 / M output
Endpoint
Chat Completions
/v1/chat/completions
Context window
200k 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-opus-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 Opus 5 cost?
$12 / M input · $60 / M output. The exact cost of each call is shown before you run it and metered to your prepaid balance — no subscription required.
Why use Claude Opus 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 Opus 5 available through the OpenAI SDK?
Yes — point any OpenAI SDK at api.companyfabric.com/v1 and set model to "anthropic/claude-opus-5".
Variants
Same family
Claude Sonnet 4.5
$3/Mtok inAnthropic
Frontier-quality text and reasoning through one OpenAI-compatible endpoint.
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Claude Haiku 4.5
$1/Mtok inAnthropic
Fast, cheap frontier-family model for high-volume tasks.
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Claude Opus 4.6
$15/Mtok inAnthropic
The frontier tier for the hardest reasoning and agentic work.
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Claude Fable 5
$6/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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The previous stable Flash, still current for most work.
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Google's stable Pro tier — the non-preview reasoning model.
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Gemini 2.5 Flash
Long-context workhorse on the stable 2.5 line.
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One key. Every model. Exact prices.
Run Claude Opus 5 with free starter credits. Free starter credits included — no subscription required.