claude-opus-4-8

Name: claude-opus-4-8
Brand: Google LLC (Vertex AI)
SKU: vertex/claude-opus-4-8
Price: 5.0000 USD
Availability: InStock

Opus 4.8 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents. Building on the coding and agentic strengths of Opus 4.7, it delivers stronger performance on complex, multi-step tasks and more reliable agentic execution across extended workflows. It is especially effective for asynchronous agent pipelines where tasks unfold over time - large codebases, multi-stage debugging, and end-to-end project orchestration. Beyond coding, Opus 4.8 brings improved knowledge work capabilities - from drafting documents and building presentations to analyzing data. It maintains coherence across very long outputs and extended sessions, making it a strong default for tasks that require persistence, judgment, and follow-through.

👁Vision🧠Reasoning🔧Tool calling⚡Caching🖥Computer use

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Specifications

Context window1M tokens

Max output128K tokens

API typechat

AddedMay 28, 2026

Model IDvertex/claude-opus-4-8

Data retentionNo

Used for trainingNo

Provider location🇺🇸 US / 🇪🇺 EU

Privacy policyVertex AI Data Governance→

Benchmarks

Benchmarks haven't been published yet for this exact variant.

Some variants (region-specific deployments, highspeed tiers) share benchmarks with their base model — check the base model page or the Google LLC (Vertex AI) models overview.

Pricing

Input / 1M

$5.00

Output / 1M

$25.00

Cache write / 1M

$6.25

Cache read / 1M

$0.50

Estimated cost

100K input + 10K output$0.75

1M input + 100K output$7.50

10M input + 1M output$75.00

Requesty charges exactly what the upstream provider charges — no markup, no per-request fees. Prompt caching and smart routing can reduce effective cost by 30-80%.

Quickstart

Drop-in compatible with the OpenAI SDK. Change the base URL, swap in your Requesty API key, and set the model to vertex/claude-opus-4-8.

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from openai import OpenAI

client = OpenAI(
    api_key="YOUR_REQUESTY_API_KEY",
    base_url="https://router.requesty.ai/v1",
)

response = client.chat.completions.create(
    model="vertex/claude-opus-4-8",
    messages=[
        {"role": "user", "content": "Explain quantum computing in one paragraph."},
    ],
)

print(response.choices[0].message.content)

Other Google LLC (Vertex AI) models

gemini-3.1-flash-lite

1.0M ctx$0.25/1M

Frequently asked questions

How much does claude-opus-4-8 cost?

claude-opus-4-8 is priced at $5.00 per million input tokens and $25.00 per million output tokens when accessed via Requesty. Prompt caching is supported, which can cut effective input cost by up to 90% on repeated context. Requesty charges exactly what the upstream provider charges — we don't add markup.

What is the context window of claude-opus-4-8?

claude-opus-4-8 has a context window of 1M tokens, with a maximum output of 128K tokens per response. That's roughly 1,333 words of input you can fit in a single prompt.

What can claude-opus-4-8 do?

claude-opus-4-8 supports vision input, tool calling, extended reasoning, prompt caching, computer use. You can call it through any OpenAI-compatible client by pointing base_url to Requesty.

How do I use claude-opus-4-8 with the OpenAI SDK?

Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "vertex/claude-opus-4-8". The Quickstart above shows Python, JavaScript and cURL snippets.

Access claude-opus-4-8 through Requesty

One API key, 400+ models, OpenAI-compatible. No markup on provider prices, automatic failover, and smart caching built-in.

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