Claude Opus 5.5 API in Singapore

In Singapore dollars, the currency your card is charged in, with the published US dollar rate beside each.

For scale: 1,000 requests of about 3,000 tokens in and 1,000 out cost S$42.85 — a long prompt and a page of answer each. Every rate is published and stays the same from one request to the next. See every model.

Prices are our published US dollar rates converted at S$1.30 to the dollar, our rate for October — the same rate your card is charged.

Opus 5.5 replaced Opus 5 in September 2026 and is the model Anthropic tells most people to start with. Anthropic puts it at about 40% cheaper than its predecessor on typical work and more than 30% faster at writing its answer. On professional knowledge work it scored higher than Fable 5.1 in Anthropic’s own GDPval-AA test — 1846 against 1735 — and it reached 66.4% on Terminal-Bench 4.0.

Thinking is always on, at medium effort by default. For long coding sessions, reviewing a large codebase and business analysis it is the safe high-end choice; Fable 5.1 is only worth the extra on problems Opus cannot crack.

• Long coding sessions and reviewing large codebases.
• Financial analysis, reports and other professional knowledge work.
• Automating multi-step business workflows.
• A dependable default when you are not sure which model to use.

• Thinking cannot be switched off, so even a simple question carries some reasoning time and cost.
• Anthropic itself cautions that benchmark leads have become a weak guide to real differences. Compare it on your own tasks.
• Cybersecurity and biology requests may be refused by Anthropic’s safety filters.

Roar AI provides access to Claude Opus 5.5 through the Roar AI gateway, charged in Singapore dollars on one bill with every other model. Requests from Singapore go through our gateway in Singapore. Developers can use Claude Opus 5.5 alongside other supported models without a separate integration for every provider.

Use the OpenAI SDK you already have — point it at Roar AI and name the model. Read the docs.

from openai import OpenAI

client = OpenAI(base_url="https://api.roar-ai.com/v1", api_key="roar_live_…")

reply = client.chat.completions.create(
    model="claude-opus-5-5",
    messages=[{"role": "user", "content": "Summarise this contract in plain English."}],
)

Claude Opus 5.5 is a frontier model, and requests are processed on international infrastructure, outside Singapore. The model directory says where each model is processed.

Claude Opus 5.5 vs GPT-6.1 SolHead to headClaude Opus 5.5 vs Gemini 3.1 ProHead to headClaude Opus 5.5 vs Claude Sonnet 5.5Head to headClaude Opus 5.5 vs Claude Opus 5Head to headGPT-5.6 SolSimilar priceGrok 4.6Similar priceKimi K3Similar price

Every Claude model: Claude API. Explore all AI models available in Singapore