Claude-Sonnet-4.6 API — $2/$10 per 1M · 200K context

What is Claude-Sonnet-4.6?

Claude Sonnet 4.6 is Anthropic's balanced model — smarter than Haiku, 4× cheaper than Opus. Best for production workloads: chat, RAG, code review, structured extraction. NovAI delivers it through a single OpenAI-compatible endpoint with zero platform fee.

Pricing

Model	Input $/1M	Output $/1M	Context
Claude-Sonnet-4.6	$2.00	$10.00	200K

NovAI charges zero platform fee and zero topup surcharge — your USD buys full compute. Competing aggregators add 3–6% fees on top.

Quick start — OpenAI SDK

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_NOVAI_KEY",
    base_url="https://aiapi-pro.com/v1",
)

resp = client.chat.completions.create(
    model="claude-sonnet-4-6",
    messages=[{"role": "user", "content": "Explain quantum tunneling in 3 sentences."}],
)
print(resp.choices[0].message.content)

Frequently asked questions

Is Claude-Sonnet-4.6 the official Anthropic model?

Yes. NovAI proxies requests to Claude-Sonnet-4.6 via a vetted upstream partner. All responses come from Anthropic's production model family.

How does pricing compare to Anthropic direct?

Official Anthropic pricing for Opus tier is $15/$75 per 1M. NovAI's pass-through plus zero-fee model makes Claude-Sonnet-4.6 approximately 33% cheaper for the same quality.

Is streaming supported?

Yes. Pass stream=True in the OpenAI SDK — NovAI forwards server-sent events natively.

What is the rate limit?

Free tier: 10 requests / minute. Paid accounts: scales with balance. Enterprise: unlimited after KYC.

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Claude-Sonnet-4.6 API — $2/1M · 200K Context