Claude Sonnet 4.6 API
The everyday workhorse, half price.
Anthropic’s balanced reasoning model — $1.50 input / $7.50 output per million tokens through Hypereal. Same Sonnet 4.6, same 200K context, served through a drop-in OpenAI-compatible REST endpoint.
Claude Sonnet pricing comparison
Verified per-million-token pricing vs Anthropic direct
Stack up to 7.7× value
Prepaid coding credits, SQL-locked to Opus / Sonnet / GPT-5.5. No subscription, no monthly cap, no surprises.
Change one line. Cut your bill.
Point your existing SDK at api.hypereal.cloud/v1. No rewrites, no new dependencies.
# Drop-in OpenAI-SDK usage with Claude Sonnet 4.6
from openai import OpenAI
client = OpenAI(
api_key="hyp-...",
base_url="https://api.hypereal.cloud/v1",
)
resp = client.chat.completions.create(
model="claude-sonnet-4-6",
messages=[
{"role": "system", "content": "You are a senior staff engineer."},
{"role": "user", "content": "Review this PR diff and flag risky changes."},
],
stream=True,
)
for chunk in resp:
print(chunk.choices[0].delta.content or "", end="")Questions, answered
Is this the real Sonnet 4.6 from Anthropic?
Yes. Same weights, same outputs, byte-for-byte equivalent to api.anthropic.com. Hypereal is an aggregator — we do not fine-tune or substitute the model.
How does Sonnet 4.6 compare to GPT-5.5 for my use case?
Sonnet 4.6 is generally stronger at long-context reasoning and instruction-following; GPT-5.5 is faster and cheaper for short interactions. Both are accessible through the same Hypereal API — switch by changing one parameter.
Can I use the Anthropic SDK or only OpenAI SDK?
Both. Anthropic SDK works natively with base_url override; OpenAI SDK works through the chat-completions adapter at https://api.hypereal.cloud/v1.
What about prompt caching?
Prompt caching is supported on Claude Sonnet 4.6 with the cache_control parameter, just like the official API. Cache hits are billed at the discounted official cache rate.
How does billing work?
Pay per token using credits. 100 credits = $1. Buy from $19.99, no subscription, credits never expire. Card and crypto accepted.
Drop in Sonnet 4.6 at half the cost
Switch your base_url, keep your existing SDK code, cut your bill in half. Credits start at $19.99.